Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.

 
Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.
Inflatable Packers
                        Product Line Catalog

WORLD OIL TOOLS INC.                            Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                  Fax: +1 403 720 5156
Calgary, Alberta, Canada                       www.worldoiltools.com
T2C 1J9                                                  Page 1 of 50
Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.
WELCOME TO WORLD OIL TOOLS INC.
World Oil Tools Inc. is a Canadian based manufacturer and supplier of high technology
inflatable products to the oil and gas sector. Staffed with some of the industry's best
manufacturing and service personnel, World Oil Tools Inc. can engineer and manufacture
products for the most challenging environments including deep, sour or extended reach
wells. The company’s headquarters and manufacturing plant are located in Calgary.

Our Mission

We deliver innovative products that fulfill customer needs.

How We Do Our Business

        We work as a team, and our customers are part of that team.

        We believe that every detail is important, and we strive to deliver reliable and
        innovative products that meet or exceed our customers' needs.

        We provide products that are specific to our customers’ needs.

KEY PERSONNEL

Mr. Dennis Makar, P. Eng., President is a Mechanical Engineer with considerable
domestic and international experience in management, operations, and engineering.

Mr. Cau Thai, Vice President, brings well-developed organizational skills and attention
to detail which ensures World Oil Tools Inc supplies a high quality product.

Mr. Graeme Percy, General Manager & COO

WORLD OIL TOOLS INC.                                                     Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                           Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                www.worldoiltools.com
T2C 1J9                                                                           Page 2 of 50
Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.
INTRODUCTION TO WORLD OIL TOOLS INC.
World Oil Tools Inc. is a manufacturer of inflatable packers used for oil and gas wells.
The company is headquartered in Calgary, Alberta, Canada where all administration,
engineering, and manufacturing take place. Following are the primary products and
services provided by the company:

1) External Casing Packers

    Inflatable External Casing Packers are used on casing strings run into exploration and
    development wells. Packers isolate zones for many applications including lost
    circulation, gas migration, selective production, and casing centering. The packers
    are permanently installed into oil and gas wells.

    External casing packers are manufactured with a continuous mandrel through the tool
    minimizing leakage points in the tool. The casing mandrel is manufactured to the
    same weight, grade and thread specifications as the casing running string. Packer
    elements for this tool are available in 4, 10, or 20 foot lengths for positive sealing in
    irregular or fractured wellbores. Each tool is provided with a dual valve system to
    ensure packer inflation pressure is locked in the tool.

2) Inflatable Production-Injection Packers

    Inflatable Production-Injection Packers are used for workovers and completions
    performed in oil and gas wells. These tools are retrievable and may be used for a
    number of applications including water shut-off, production, injection, testing,
    squeeze cementing, bridge plugs or pressure testing casing patches.

    Inflatable Production-Injection Packers may be set inside open-hole or in casing. The
    long seal section of inflatable packers conforms well to irregular wellbores. These
    tools may be used inside vertical, deviated, or horizontal wellbores, and are available
    on a sales or rental basis.

WORLD OIL TOOLS INC.                                                     Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                           Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                www.worldoiltools.com
T2C 1J9                                                                           Page 3 of 50
Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.
3) Inflatable Straddle Packer Assemblies

    Inflatable Straddle Packer Assemblies are used for selectively isolating zones for
    temporary production, acidizing, injection, testing or pressure testing casing patches.
    Packers may be set inside open-hole or in casing.

    Inflatable Straddle Packer Assemblies may be used in vertical, deviated or horizontal
    wells. No tubing rotation is required to operate the system. Minimum interval
    spacing between the packers is one meter.

    A common application for this system is to locate water production in older
    producing wells. Once the zone of interest is located, an inflatable bridge plug or an
    inflatable scab liner system may be installed in the well to maximize oil or gas
    production.

4) Thru-Tubing Inflatable Packers

    Thru-Tubing Inflatable Packers are run inside existing tubing strings, and set in larger
    production casing located below the tubing. For most applications using these tools,
    it is not necessary to move a workover rig on to the location. Thru-Tubing packers
    are run into the wells using coiled tubing or slickline.

    Thru-Tubing Inflatable Packers are designed for high 3:1 expansion. Advanced
    elastomers combined with high-strength stainless steel strips used in the packers
    provide effective sealing under high differential conditions downhole. These tools
    may be supplied as permanent packers, retrievable packers, cement retainers or multi-
    set packers.

5) Drillstem Testing Tools

    World Oil Tools Inc. is a manufacturer and supplier of inflatable drillstem testing
    tools and accessories. Tools are available in 3.12”, 4.25”, and 5.00” diameters.

World Oil Tools Inc. is very committed to providing full technical, marketing, and
operational support for your projects.

WORLD OIL TOOLS INC.                                                    Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                          Fax: +1 403 720 5156
Calgary, Alberta, Canada                                               www.worldoiltools.com
T2C 1J9                                                                          Page 4 of 50
Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.
INFLATABLE PACKERS

        Section 1                External Casing Packers (ECP)

        Section 2                Single-Set Inflatable Production-Injection Packer
                                 - Pull Release
                                 - Rotational Release

        Section 3                Multi-Set Production-Injection Packer

        Section 4                Permanent Inflatable Bridge Plug

        Section 5                Re-settable Inflate Test & Treat System (RITTS)

        Section 6                Thru-Tubing Inflatable Packers

        Section 7                Inflatable Circulating Packer

        Section 8                Hydraulic Stage Collar

        Section 9                Drill Stem Testing (DST) Tools

WORLD OIL TOOLS INC.                                                 Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                       Fax: +1 403 720 5156
Calgary, Alberta, Canada                                            www.worldoiltools.com
T2C 1J9                                                                       Page 5 of 50
Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.
EXTERNAL CASING PACKER (ECP)

                          TECHNICAL DATA SHEET

WORLD OIL TOOLS INC.                              Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                    Fax: +1 403 720 5156
Calgary, Alberta, Canada                         www.worldoiltools.com
T2C 1J9                                                    Page 6 of 50
Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.
¾ INTRODUCTION

Continuous Mandrel ECP assemblies are designed with packer elements in 4 Foot (1.22m), 10
Foot (3.05m), and 20 Foot (6.10m) lengths. World Oil Tools packer elements soundly
conform to irregular or washed-out hole diameters. Steel reinforcement slats are used within
the elements to ensure that the ECP self-centers itself in vertical, deviated or horizontal
wellbores.

Tools are available in Standard and Special clearance models. Standard clearance tools are
used where higher differential pressures are encountered across the packer element. Special
clearance tools are used for applications where restricted hole diameters may occur.

Continuous Mandrel ECP assemblies are typically inflated with cement displacement fluid.
An integral screen prevents coarse particles from entering the valve system. The valves are
designed with high quality materials, which will not erode when abrasive materials are
pumped through the system.

The World Oil Tools valve system provides positive closing, after the element has been fully
inflated to pre-determined pressure. After the shear valve has shifted to the final closed
position, a mechanical locking device ensures that no further movement will occur.

World Oil Tools inflatable elements are available with Standard and Advanced elastomer
compounds. Standard elastomer compounds may be used for temperatures up to 240° F (115°
C). Advanced elastomer compounds are made available for applications in which
temperatures reach up to 350° F (180° C).

¾ FEATURES & BENEFITS
    The continuous one-piece mandrel eliminates the need for internal threaded connections.
    Mandrel specifications are identical to the casing used in the well.

    The Valve system is located above the packer element. Valve operation is not affected
    by unpredictable pressure changes below the element.

    Superior anchoring system prevents element rotation, and packer shoe travel, while tools
    are run into the well.

    World Oil Tools ECP’s are manufactured with high strength steel materials suitable for
    H2S and CO2 environments.

    Shear pins in the valves may be easily replaced in the field, allowing the operator greater
    flexibility when well conditions change.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                        Page 7 of 50
Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.
¾ APPLICATIONS
To Prevent Loss of Cement
External Casing Packers may be positioned in the casing string directly above a lost
circulation zone. The packer effectively prevents the loss of high-density cement slurries into
the lost circulation zone. For these applications, a second stage cementing operation is
normally performed above the ECP, after setting the packer.

To Prevent Gas Migration through Cement Columns
In many wells, gas migration through cement slurry can be prevented by setting an External
Casing Packer directly above a high pressure gas zone. Improved cement integrity will be
achieved.

To Prevent Unwanted Water Production
An External Casing Packer may be positioned slightly above an oil-water or a gas-water
contact, in order to minimize water production from those zones.

To Minimize Damage To Sensitive Formations and Barefoot Completions
In the past, barefoot completions were used to minimize formation damage to production
zones. However, today’s technology, using under-balanced drilling methods, allows drilling
of the well to the required total depth, and to set External Casing Packers directly above
sensitive formations.

For Centering Casing In Horizontal Wells
Several External Casing Packers may be used on horizontal casing strings in order to
centralize casing and to ensure even distribution of cement around the casing.

Slotted Liners
External Casing Packers may be positioned at one or more points on slotted liners. These
packers may then be set at a later date, using cup-type tools.

¾ ECP VALVE SYSTEM
World Oil Tools ECP’s are designed with a minimum two valves per assembly, depending on
size. The valves allow the ECP to be inflated and ensure that once inflated the pressure is
maintained inside the element. The opening valve prevents any fluid from entering the packer
element until a pre-determined pressure is reached inside the casing. The closing valve is
sheared to the closed position once the inflate packer is fully expanded, and a pre-determined
pressure is reached inside the element. Once internal casing pressure is bled off, the opening
valve then moves into a locked closed position, and can never be re-opened. This is a safety
feature that prevents damage to the casing in the unlikely event that the packer element was to
rupture.

Each World Oil Tools valve is specially Hard-Kote treated. Testing shows, that when
inflating using large inflation volumes, which can be encountered on larger assemblies, severe
washing and erosion will occur in ECP valves. Hard-Kote treatment provides a surface
hardness in excess of Rockwell (Rc) 80, which minimizes the effects of abrasives. ECP valve
pressure settings may be easily changed on location, just prior to running the tool using the
supplied shear pin cards.

WORLD OIL TOOLS INC.                                                                 Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                       Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                            www.worldoiltools.com
T2C 1J9                                                                                       Page 8 of 50
Inflatable Packers Product Line Catalog - WORLD OIL TOOLS INC.
¾ REFERENCES

Common Sizes of ECP’s

            Casing Size          Standard Size ECP   Special Clearance ECP
                                  (Maximum O.D.)        (Maximum O.D.)
    Inches            mm.        Inches      mm.      Inches          mm
     2 3/8                60      3.62        92       3.39            86
     2 7/8                73      4.25       108       3.65            92
      3½                  89      4.75       121       4.30           109
       4              102         5.18       132       4.77           121
      4½              114         5.75       146       5.50           140
       5              127         6.25       165       5.95           151
      5½              140         7.00       178       6.50           165
     6 5/8            168         7.93       202       7.63           194
       7              178         8.25       210       8.00           203
     7 5/8            194         9.00       229       8.75           222
     8 5/8            219        10.25       260       10.00          254
     9 5/8            244        11.25       286       11.00          279
     10 ¾             273        12.75       324       12.38          314
     11 ¾             298        13.75       349       13.38          340
    13 3/8            340        15.75       440       15.25          387
       16             406        18.25       464       17.88          454
    18 5/8            473        22.00       559       21.50          546
       20             508        23.00       584       22.50          571

WORLD OIL TOOLS INC.                                        Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                              Fax: +1 403 720 5156
Calgary, Alberta, Canada                                   www.worldoiltools.com
T2C 1J9                                                              Page 9 of 50
Imperial Differential Pressure Chart

                               External Casing Packer - Differential Pressure Chart

                    5000

                    4500

                    4000
   Pressure (PSI)

                    3500

                    3000

                    2500

                    2000                         2 7/8"        4 1/2"         5 1/2"        7"      9 5/8"               13 3/8"

                               Packer       2 3/8"        3 1/2"             5"         6 5/8"   8 5/8"        10 3/4"
                    1500
                           4    5       6    7       8    9   10        11    12       13   14   15       16   17    18     19     20
                                                                   Hole Size (Inches)

WORLD OIL TOOLS INC.                                                                                       Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                                             Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                                                  www.worldoiltools.com
T2C 1J9                                                                                                            Page 10 of 50
Metric Differential Pressure Chart

                            External Casing Packer - Differential Pressure Chart

                    35.00

                    30.00
   Pressure (MPa)

                    25.00

                    20.00

                    15.00

                            Packer Size (mm)   60   73   89   114   127   140   168   178   219   244    273       340
                    10.00
                         102 127 152 178 203 229 254 279 305 330 356 381 406 432 457 483 508
                                                              Hole Size (mm)

WORLD OIL TOOLS INC.                                                                               Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                                     Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                                          www.worldoiltools.com
T2C 1J9                                                                                                    Page 11 of 50
INFLATABLE PRODUCTION INJECTION PACKER
            SINGLE SET – PULL RELEASE

                          TECHNICAL DATA SHEET

WORLD OIL TOOLS INC.                              Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                    Fax: +1 403 720 5156
Calgary, Alberta, Canada                         www.worldoiltools.com
T2C 1J9                                                   Page 12 of 50
¾ Introduction
The Inflatable Single Set Production-Injection Packer is used for isolating zones in open-hole
or in casing. The tool is retrievable and may be used for testing, treating, production, or
injection. The Single Set, Rotational Release Production-Injection Packer may be used in
vertical or deviated wells.

Inflatable packers elements for this tool are 1.67 m. (66 Inches) in length. High strength
aircraft cable is used to provide good expansion characteristics in washed out or irregular well
bores, as well as to provide high differential pressure capabilities. Cable reinforcement allows
these inflatable packer elements to return very close to the original run-in diameter. In
addition, these elements are less likely to lose rubber down hole because superior bonding
occurs between the rubber and cable.

¾ Features & Benefits
    Inflatable Packer Elements provide greater clearance through restrictions in a well.

    Tool requires no rotation for setting or releasing the packer

    The system does not depend on a poppet valve to maintain pressure in the packer
    element. A sliding sleeve is mechanically shifted to maintain inflation pressure in the
    packer.

    A cable-reinforced packer element provides superior bonding of rubber to cable, and
    therefore less rubber is likely to be lost downhole.

    The system allows pressure to be fully equalized across the packer element prior to
    unsetting the packer. This minimizes packer element damage

¾ Applications

Water Shut-off
Single-Set packers may be used for long term production to block water encroachment zones
in a well. As the life of a well increases, water coning may occur. Also, water production
may start occurring from fractures or channels. Inflatable packers provide an effective seal in
open hole or in casing, to block this unwanted water production.

Production
Single Set Inflatable Packers are also very effective for production applications. The packer
serves two purposes when used for these applications. Firstly, the inflatable packer element
provides a very effective seal in open hole or in casing. Secondly, the element anchors solidly
in open hole or in casing, to prevent tubing reciprocating or rotational movement at the tool.

For production applications, flow of oil or gas may occur from below the tool. A pumpout
sub enables the flow passage through the tool to be opened for production, after the packer
has been set. Alternatively, flow of oil or gas may take place from the production zone above

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 13 of 50
the packer. A circulating valve (hydraulic, rotational type, or impact plug type) enables the
flow passage above the tool to be opened, after the packer has been set.

Injection
Single Set Inflatable Packers may be used for injection of fluids in disposal wells. A large
internal bore, equivalent to the running string, is provided through the tool. For long term
disposal applications it is very important that materials used in manufacturing these tools, are
able to resist highly corrosive environments typically associated with disposal wells.

For disposal applications, fluid is normally injected to the zone located below the tool. A
pumpout sub enables the injection passage through the tool to be opened for injection, after
the packer has been set.

Testing
Single Set Inflatable Packers may be used for testing zones in open hole or in casing. Zones
may be isolated to determine oil, gas, or water production from certain sections. Testing of
each zone will determine which fluid is produced from that section. Also, testing will
determine flow rates the zone. Electronic Pressure-Temperature Recorders as well as Shut-In
Tools, may be used with the system to provide additional subsurface data from zones being
tested.

For testing applications, flow of well fluids may take place from the zone located above the
packer. It is recommended that a rotational circulating valve be used directly above the tool.
After the packer has been set, this valve may be rotated to open the flow ports. Once the
required information from that zone is obtained, the valve may be rotated to close the flow
ports.

Testing may then take place from the zone located below the tool. A pumpout sub enables the
flow passage through the tool to be opened for testing.

Treating
Single Set Inflatable Packers may be used for treating zones in open hole or in casing. A
large internal bore equivalent to the running string, is provided through the tool. This large
bore minimizes frictional effects and does not provide restrictions for treatment at high pump
rates.

Typical treatments performed through the tool would be fracturing, acidizing, polymer
injection for water shut-off, and acid washes.

For treating applications, a circulating valve is used above the tool. This valve is opened to
allow treatment fluid to be pumped from surface, to the tool. Once the treatment fluid is
spotted to the tool, the circulating valve is closed, and treatment fluid is then injected to the
zone located below the packer.

Squeeze Cementing
Single Set Inflatable Packers may be used for squeeze cementing zones in open hole or in
casing. These packers provide greater clearance for running tools into a well where there are
restrictions such as casing patches. In addition, the long seal section provided with an
inflatable element is more effective in older wells where casing may be partially corroded.
These packers are particularly effective for squeeze cementing required to abandon old wells.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 14 of 50
¾ Applications (Continued)
For squeeze cementing applications, a circulating valve is used above the tool. This valve is
opened to allow cement to be circulated from surface, to the tool. Once the cement is spotted at
the tool, the circulating valve is closed, and cement is then squeezed into the zone located below
the packer.

Bridge Plug
Single Set Inflatable Packers may be used as Bridge Plugs in a well, to isolate oil-water or gas-
water contacts. These packers provide effective isolation in open hole or in casing. The long seal
section provides additional assurance that good isolation will be provided where fractures or
channels are present.

For bridge plug applications, a bull plug is typically used below the tool. Also, an on-off seal
assembly is used directly above the tool. Once the packer has been set, manipulation of the work
string allows tubing to be disconnected from the tool. In horizontal wells, a hydraulic disconnect
unit is typically used. Additional pressure applied after setting the packer, disconnects the tubing
string from the packer.

Pressure Testing Casing Patches
Single Set Inflatable Packers are very effective for testing casing patches. Run-in diameter is
reduced when a casing patch is set. An inflatable packer is designed with a reduced Outer
Diameter (O.D.), which makes it possible to pass through a casing patch.

For testing a casing patch, the single set inflatable packer is normally set directly below the patch.
After the packer has been set, pressure is applied to the annulus above the packer.

WORLD OIL TOOLS INC.                                                                   Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                         Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                              www.worldoiltools.com
T2C 1J9                                                                                        Page 15 of 50
¾ OPERATING PROCEDURES

Operation of the Single Set Pull Release Inflatable Packer Assembly

Prior to running the Single Set Pull Release Tool into the well, a decision must be made whether to run a
pumpout sub, ball shear assembly, or a bull plug, at the bottom of the tool.

A pumpout sub will not allow tubing to fill as the tool is run into the well. Shear Pins are used in this sub
and these may be set at a pre-determined value based on accessory tools used, and downhole operating
conditions. A pumpout sub is normally used in highly deviated or horizontal wells.

A Ball Shear Assembly allows tubing to fill as the tool is run into the well. Also, fluids may be circulated
down the tubing before dropping the ball from surface.

A Bull Plug is typically used for bridge plug applications.

To set the Single Set Pull Release Packer
Apply pressure in tubing and hold pressure for a period of time in order to allow inflatable packer elements
to fully inflate. It is recommended that pressure be held for a minimum time of 10 minutes.

Release tubing pressure, and set a minimum of 2,200 DaN (5,000 Pounds) on the tool, to ensure the packer
is set. Maintain this weight for a minimum period of five minutes, and then proceed with subsequent
operations.

To Unset the Single Set Pull Release Packer
Apply a straight upward pull to the tool, in order to shear the screws. Each Shear Screw is rated for 2,200
DaN (5,000 Pounds). Once the screws are sheared, wait a minimum period of five minutes to allow the
inflatable packer element to fully deflate.

WORLD OIL TOOLS INC.                                                                   Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                         Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                              www.worldoiltools.com
T2C 1J9                                                                                        Page 16 of 50
¾ Tool Specifications

                            Element                       Minimum Tool                     Element Seal                      Thread
                              O.D.                             I.D.                           Length                       Connections
                          Inches mm.                      Inches    mm.                   Inches     m.
                                 3.12         79           0.75            19              51             1.29             2 3/8” EUE
                                 3.50         89           1.25            31              51             1.29             2 3/8” EUE
                                 4.25         108          2.00            50              48             1.22             2 3/8” EUE
                                                                                                                           2 3/8” EUE
                                 5.50         140          2.50            63              49             1.24
                                                                                                                           2 7/8” EUE
                                                                                                                           2 7/8” EUE
                                 6.75         171          2.50            63              49             1.24
                                                                                                                           3 ½ ” EUE
                                 7.50         191          3.50            89              48             1.22              3 ½” EUE
                                 9.38         238          4.50            114             47             1.19              3 ½” EUE

¾ INFLATABLE PACKER ELEMENT DIFFERENTIAL PRESSURE CHART
                                  3.50" Packer          4.25" Packer       5.50" Packer         6.75" Packer        7.50" Packer    9.38" Packer

                                 5000

                                 4500

                                 4000
   Differential Pressure (PSI)

                                 3500

                                 3000

                                 2500

                                 2000

                                 1500
                                          4         5        6         7    8       9       10       11        12     13      14   15      16
                                                                                   Hole Size (Inches)

WORLD OIL TOOLS INC.                                                                                                        Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                                                              Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                                                                   www.worldoiltools.com
T2C 1J9                                                                                                                             Page 17 of 50
INFLATABLE PRODUCTION INJECTION PACKER
         SINGLE SET – ROTATIONAL RELEASE

                          TECHNICAL DATA SHEET

WORLD OIL TOOLS INC.                              Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                    Fax: +1 403 720 5156
Calgary, Alberta, Canada                         www.worldoiltools.com
T2C 1J9                                                   Page 18 of 50
¾ Introduction
The Inflatable Single Set Production-Injection Packer is used for isolating zones in open-hole
or in casing. The tool is retrievable and may be used for testing, treating, production, or
injection. The Single Set, Rotational Release Production-Injection Packer may be used in
vertical or deviated wells.

Inflatable packers elements for this tool are 1.67 m. (66 Inches) in length. High strength
aircraft cable is used to provide good expansion characteristics in washed out or irregular well
bores, as well as to provide high differential pressure capabilities. Cable reinforcement allows
these inflatable packer elements to return very close to the original run-in diameter. In
addition, these elements are less likely to lose rubber down hole because superior bonding
occurs between the rubber and cable.

¾ Features & Benefits
    Inflatable Packer Elements provide greater clearance through restrictions in a well.

    Tool requires no rotation for setting or releasing the packer

    The system does not depend on a poppet valve to maintain pressure in the packer
    element. A sliding sleeve is mechanically shifted to maintain inflation pressure in the
    packer.

    A cable-reinforced packer element provides superior bonding of rubber to cable, and
    therefore less rubber is likely to be lost downhole.
    The system allows pressure to be fully equalized across the packer element prior to
    unsetting the packer. This minimizes packer element damage.

¾ Applications

Water Shut-off
Single-Set packers may be used for long term production to block water encroachment zones
in a well. As the life of a well increase, water coning may occur. Also, water production may
start occurring from fractures or channels. Inflatable packers provide an effective seal in open
hole or in casing, to block this unwanted water production.

Production
Single Set Inflatable Packers are also very effective for production applications. The packer
serves two purposes when used for these applications. Firstly, the inflatable packer element
provides a very effective seal in open hole or in casing. Secondly, the element anchors solidly
in open hole or in casing, to prevent tubing reciprocating or rotational movement at the tool.

For production applications, flow of oil or gas may occur from below the tool. A pumpout
sub enables the flow passage through the tool to be opened for production, after the packer
has been set. Alternatively, flow of oil or gas may take place from the production zone above
the packer. A circulating valve (hydraulic, rotational type or impact plug type) enables the
flow passage above the tool to be opened, after the packer has been set.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 19 of 50
Injection
Single Set Inflatable Packers may be used for injection of fluids in disposal wells. A large
internal bore, equivalent to the running string, is provided through the tool. For long term
disposal applications it is very important that materials used in manufacturing these tools, are
able to resist highly corrosive environments typically associated with disposal wells.

For disposal applications, fluid is normally injected to the zone located below the tool. A
pumpout sub enables the injection passage through the tool to be opened for injection, after
the packer has been set.

Testing
Single Set Inflatable Packers may be used for testing zones in open hole or in casing. Zones
may be isolated to determine oil, gas, or water production from certain sections. Testing of
each zone will determine which fluid is produced from that section. Also, testing will
determine flow rates the zone. Electronic Pressure-Temperature Recorders as well as Shut-In
Tools, may be used with the system to provide additional subsurface data from zones being
tested.

For testing applications, flow of well fluids may take place from the zone located above the
packer. It is recommended that a rotational circulating valve be used directly above the tool.
After the packer has been set, this valve may be rotated to open the flow ports. Once the
required information from that zone is obtained, the valve may be rotated to close the flow
ports.

Testing may then take place from the zone located below the tool. A pumpout sub enables the
flow passage through the tool to be opened for testing.

Treating
Single Set Inflatable Packers may be used for treating zones in open hole or in casing. A
large internal bore equivalent to the running string, is provided through the tool. This large
bore minimizes frictional effects and does not provide restrictions for treatment at high pump
rates.

Typical treatments performed through the tool would be fracturing, acidizing, polymer
injection for water shut-off, and acid washes.

For treating applications, a circulating valve is used above the tool. This valve is opened to
allow treatment fluid to be pumped from surface, to the tool. Once the treatment fluid is
spotted to the tool, the circulating valve is closed, and treatment fluid is then injected to the
zone located below the packer.

Squeeze Cementing
Single Set Inflatable Packers may be used for squeeze cementing zones in open hole or in
casing. These packers provide greater clearance for running tools into a well where there are
restrictions such as casing patches. In addition, the long seal section provided with an
inflatable element is more effective in older wells where casing may be partially corroded.
These packers are particularly effective for squeeze cementing required to abandon old wells.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 20 of 50
¾ Applications (Continued)
For squeeze cementing applications, a circulating valve is used above the tool. This valve is
opened to allow cement to be circulated from surface, to the tool. Once the cement is spotted
at the tool, the circulating valve is closed, and cement is then squeezed into the zone located
below the packer.

Bridge Plug
Single Set Inflatable Packers may be used as Bridge Plugs in a well, to isolate oil-water or
gas- water contacts. These packers provide effective isolation in open hole or in casing. The
long seal section provides additional assurance that good isolation will be provided where
fractures or channels are present.

For bridge plug applications, a bull plug is typically used below the tool. Also, an on-off seal
assembly is used directly above the tool. Once the packer has been set, manipulation of the
work string allows tubing to be disconnected from the tool. In horizontal wells, a hydraulic
disconnect unit is typically used. Additional pressure applied after setting the packer,
disconnects the tubing string from the packer.

Pressure Testing Casing Patches
Single Set Inflatable Packers are very effective for testing casing patches. Run-in diameter is
reduced when a casing patch is set. An inflatable packer is designed with a reduced Outer
Diameter (O.D.), which makes it possible to pass through a casing patch.

For testing a casing patch, the single set inflatable packer is normally set directly below the
patch. After the packer has been set, pressure is applied to the annulus above the packer.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 21 of 50
¾ OPERATING PROCEDURES
Prior to running the Single Set, Rotational Release Tool into the well, a decision must be made whether to
run a pumpout sub, ball shear assembly, or a bull plug, at the bottom of the tool.

A pumpout sub will not allow tubing to fill as the tool is run into the well. Shear Pins are used in this sub
and these may be set at a pre-determined value based on accessory tools used, and downhole operating
conditions. A pumpout sub is normally used in highly deviated or horizontal wells.

A Ball Shear Assembly allows tubing to fill as the tool is run into the well. Also, fluids may be circulated
down the tubing before dropping the ball from surface.

A Bull Plug is typically used for bridge plug applications.

To set the Single Set, Rotational Release Packer
Apply pressure in tubing and hold pressure for a period of time in order to allow inflatable packer elements
to fully inflate. It is recommended that pressure be held for a minimum time of 10 minutes.

Release tubing pressure, and set a minimum of 2,200 DaN (5,000 Pounds) on the tool, to ensure the packer
is set. Maintain this weight for a minimum period of five minutes, and then proceed with subsequent
operations.

To Unset the Single Set, Rotational Release Packer
Apply a slight upward pull to the tool, and then apply Right-Hand rotation to the tubing string. Six
rotations are required at the tool in order to thread the release coupling fully out of the Upper Packer
Adapter. After rotating, apply an additional upward pull of 1,000 to 2,000 DaN (2,000 to 5,000 Pounds) to
the tool and wait for five minutes in order to allow the packer element to fully deflate. After the waiting
period work the tool up and down to ensure the tool is unset.

WORLD OIL TOOLS INC.                                                                 Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                       Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                            www.worldoiltools.com
T2C 1J9                                                                                      Page 22 of 50
¾ Tool Specifications

                            Element                       Minimum Tool                     Element Seal                      Thread
                              O.D.                             I.D.                           Length                       Connections
                          Inches mm.                      Inches    mm.                   Inches     m.
                                 3.12         79           0.75            19              51             1.29             2 3/8” EUE
                                 3.50         89           1.25            31              51             1.29             2 3/8” EUE
                                 4.25         108          2.00            50              48             1.22             2 3/8” EUE
                                                                                                                           2 3/8” EUE
                                 5.50         140          2.50            63              49             1.24
                                                                                                                           2 7/8” EUE
                                                                                                                           2 7/8” EUE
                                 6.75         171          2.50            63              49             1.24
                                                                                                                           3 ½ ” EUE
                                 7.50         191          3.50            89              48             1.22              3 ½” EUE
                                 9.38         238          4.50            114             47             1.19              3 ½” EUE

¾ INFLATABLE PACKER ELEMENT DIFFERENTIAL PRESSURE CHART
                                  3.50" Packer          4.25" Packer       5.50" Packer         6.75" Packer        7.50" Packer    9.38" Packer

                                 5000

                                 4500

                                 4000
   Differential Pressure (PSI)

                                 3500

                                 3000

                                 2500

                                 2000

                                 1500
                                          4         5        6         7    8       9       10       11        12     13      14   15      16
                                                                                   Hole Size (Inches)

WORLD OIL TOOLS INC.                                                                                                        Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                                                              Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                                                                   www.worldoiltools.com
T2C 1J9                                                                                                                             Page 23 of 50
MULTI-SET PRODUCTION INJECTION PACKER

                          TECHNICAL DATA SHEET

WORLD OIL TOOLS INC.                              Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                    Fax: +1 403 720 5156
Calgary, Alberta, Canada                         www.worldoiltools.com
T2C 1J9                                                   Page 24 of 50
¾ INTRODUCTION

The Inflatable Multi-Set Production-Injection Packer is used for isolating zones in open-hole
or in casing. The tool is re-settable and may be used for testing, treating, production, or
injection of several zones with each trip into the well. This tool is designed for long-term
downhole production or injection applications.

The Inflatable Multi-Set Production-Injection Packer may be used in vertical, deviated, or
horizontal wells. No rotation is required to set the packer; however right-hand rotation is
required to unset the packer.

There are several options available for re-setting multi-set packers. These include:
    Re-set Darts along with a perforated plug catcher are used when pumping or testing must
    take place through the tool.
    An expendable ball may be used.
    A standing valve may be used.
    A Wireline plug may be used.
    A solid Pumpout plug or bull plug may be used when no pumping or testing through the
    packer is required.

Inflatable packers elements for these tools are 1.67 m. (66 Inches) in length. High strength
aircraft cable is used to provide good expansion characteristics in washed out or irregular well
bores. Cable reinforcement allows these inflatable packer elements to return very close to the
original run-in diameter while providing high differential pressure capabilities. The Packer
elements are designed in such a way that bulging due to high differential pressure is less
likely to occur. Due to superior bonding between the cable and rubber these elements lose
less rubber down hole.

¾ APPLICATIONS
Water Shut-off
Multi-Set packers may be used for short-term or long-term production to block water
encroachment zones in a well. As the life of a well increases, water coning may occur. Also,
water production may start occurring from fractures or channels. Inflatable packers provide
an effective seal in open hole or in casing, to block this unwanted water production.

Production
Multi-Set Inflatable Packers are also very effective for production applications. The packer
serves two purposes when used for these applications. Firstly, the inflatable packer element
provides a very effective seal in open hole or in casing. Secondly, the element anchors solidly
in open hole or in casing, to prevent tubing rotation or reciprocation at the tool.

Injection
Multi-Set Inflatable Packers may be used for injection of fluids in disposal wells. A large
internal bore is provided through the tool. For long term disposal applications it is very
important that materials used in manufacturing these tools, are able to resist highly corrosive
environments typically associated with disposal wells.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 25 of 50
¾   APPLICATIONS (Continued)
Testing
Multi-Set Inflatable Packers may be used for testing zones in open hole or in casing. Zones
may be isolated to determine oil, gas, or water production from certain sections. Testing of
each zone will determine which fluid is produced from that section. Also, testing will
determine flow rates the zone. Electronic Pressure-Temperature Recorders as well as Shut-In
Tools, may be used with the system to provide additional subsurface data from zones being
tested.

Treating
Multi-Set Inflatable Packers may be used for treating zones in open hole or in casing. Typical
treatments performed through the tool would be fracturing, acidizing, polymer injection for
water shut-off, and acid washes.

For treating applications, a circulating valve is used above the tool. This valve is opened to
allow treatment fluid to be pumped from surface, to the tool. Once the treatment fluid is
spotted to the tool, the circulating valve is closed, and treatment fluid is then injected to the
zone located below the packer.

Squeeze Cementing
Multi-Set Inflatable Packers may be used for squeeze cementing zones in open hole or in
casing. These packers provide greater clearance for running tools into a well where there are
restrictions such as casing patches. In addition, the long seal section provided with an
inflatable element is more effective in older wells where casing may be partially corroded.
These packers are particularly effective for squeeze cementing required to abandon old wells.

For squeeze cementing applications, a circulating valve is used above the tool. This valve is
opened to allow cement to be circulated from surface, to the tool. Once the cement is spotted
at the tool, the circulating valve is closed, and cement is then squeezed into the zone located
below the packer.

Pressure Testing Casing Patches
Multi-Set Inflatable Packers are very effective for testing casing patches. Run-in diameter is
reduced when a casing patch is set. An inflatable packer is designed with a reduced Outer
Diameter (O.D.), which makes it possible to pass through a casing patch.

For testing a casing patch, the single set inflatable packer is normally set directly below the
patch. After the packer has been set, pressure is applied to the annulus above the packer.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 26 of 50
¾ PRODUCT SIZES

   Element O.D. Tool I.D. Element Seal Length                                                                                          Thread
   Inches mm. Inches mm. Inches        m.                                                                                            Connections
      3.12                           79           0.75             19                 51                    1.29                          2 3/8” EUE
      3.50                           89           1.25             31                 51                    1.29                          2 3/8” EUE
      4.25                          108           2.00             50                 48                    1.22                          2 3/8” EUE
                                                                                                                                          2 3/8” EUE
      5.50                          140           2.50             63                 49                    1.24
                                                                                                                                          2 7/8” EUE
                                                                                                                                          2 7/8” EUE
      6.75                          171           2.50             63                 49                    1.24
                                                                                                                                          3 1/3” EUE
      7.50                          191           3.50             89                 48                    1.22                          3 ½” EUE
      9.38                          238           4.50             114                47                    1.19                          3 ½” EUE

¾ DIFFERENTIAL PRESSURE CHARTS

                                                        Inflatable Packer Element - Differential Pressure Chart

                                                                                  Holes Size (mm)
                             76      102    127    152       178       203    229          254    279      305    330      356      381     406       432
                      5500                                                                                                                               37.9

                      5000                                                                                                                                 34.5

                      4500                                                                                                                                 31.0

                      4000                                                                                                                                 27.6
                                                                                                                                                                  Pressure (MPa)
     Pressure (PSI)

                      3500                                                                                                                                 24.1

                      3000                                                                                                                                 20.7

                      2500                                                                                                                                 17.2

                      2000                                        4.25" (108mm)            5.50" (140mm)            7.50" (191mm)                          13.8
                                  Element Size
                                                        3.62" (92mm)              5.06" (129mm)            6.75" (171mm)              9.38" (238mm)
                      1500                                                                                                                                 10.3
                             3        4      5      6         7         8         9        10     11       12     13       14       15      16        17
                                                                                  Hole Size (Inches)

WORLD OIL TOOLS INC.                                                                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                                                                             www.worldoiltools.com
T2C 1J9                                                                                                                                       Page 27 of 50
PERMANENT INFLATABLE BRIDGE PLUG

                          TECHNICAL DATA SHEET

WORLD OIL TOOLS INC.                              Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                    Fax: +1 403 720 5156
Calgary, Alberta, Canada                         www.worldoiltools.com
T2C 1J9                                                   Page 28 of 50
¾ INTRODUCTION

The Permanent Inflatable Bridge Plug is used for isolating zones in open-hole or in casing.
This tool is not retrievable.

The Permanent Inflatable Bridge Plug may be used in vertical, deviated, or horizontal wells.
No rotation is required to set the packer, however six right hand rotations are required to
release the tubing string from the packer.

Inflatable packers elements for this tool are 1.67 m. (66 Inches) in length. High strength
aircraft cable is used to provide good expansion characteristics in washed out or irregular well
bores, as well as to provide high differential pressure capabilities. In addition, optional
exposed cable packer elements are available to provide superior anchoring in casing.

A running tool is required for running the Permanent Inflatable Bridge Plug into the well, and
for disconnecting the tubing string from the Bridge Plug. Six right-hand rotations are required
at the tool for disconnecting.

¾   APPLICATIONS

Water Shut-off
The primary application for Permanent Inflatable Bridge Plug Assemblies is to block water
production zones in a well. As the life of a well increases, water coning may occur. Also,
water production may start occurring from fractures or channels. Inflatable packers provide
an effective seal in open hole or casing, to block this unwanted water production.

Abandonment of Wells
Permanent Inflatable Bridge Plug Assemblies may be used for abandonment of wells. For
these applications, well operators want a very economical, but yet very effective seal in open
hole or in casing. For these applications, cement may also be used directly above the plug for
additional long-term seal integrity.

Re-Entry Wells and Whipstocks
Permanent Inflatable Bridge Plug Assemblies may be used for abandonment of the original
wellbore in re-entry wells or whenever a whipstock is required.

Cement Retainer
Permanent Inflatable Bridge Plug Assemblies may be used for squeeze cementing zones and
left as a cement retainer in open hole or in casing. These packers provide greater clearance
for running tools into a well where there are restrictions such as casing patches. In addition,
the long seal section provided with an inflatable element is more effective in older wells
where casing may be partially corroded. These packers are particularly effective for squeeze
cementing required to abandon old wells.

For cement retainer applications, a check valve assembly or a latch-down plug catcher
assembly must be installed at the bottom of the tool.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 29 of 50
¾ AVAILABLE SIZES

   Element O.D.             Tool I.D.    Element Seal Length        Thread
 Inches    mm.           Inches    mm.   Inches      m.           Connections
  3.12          79        0.75    19      51        1.29           2 3/8” EUE
  3.50          89        1.25    31      51        1.29           2 3/8” EUE
  4.25         108        2.00    50      48        1.22           2 3/8” EUE
                                                                   2 3/8” EUE
  5.50         140        2.50    63      49        1.24
                                                                   2 7/8” EUE
                                                                   2 7/8” EUE
  6.75         171        2.50    63      49        1.24
                                                                   3 1/3” EUE
  7.50         191        3.50    89      48        1.22            3 ½” EUE
  9.38         238        4.50    114     47        1.19            3 ½” EUE

WORLD OIL TOOLS INC.                                            Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                  Fax: +1 403 720 5156
Calgary, Alberta, Canada                                       www.worldoiltools.com
T2C 1J9                                                                 Page 30 of 50
RE-SETTABLE INFLATE TEST & TREAT SYSTEM

                     TECHNICAL MANUAL

WORLD OIL TOOLS INC.                     Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.           Fax: +1 403 720 5156
Calgary, Alberta, Canada                www.worldoiltools.com
T2C 1J9                                          Page 31 of 50
¾ INTRODUCTION

World Oil Tools Inc. is pleased to introduce our newly developed Re-Settable Inflate Test and Treat
System (RITTS). The RITTS is designed for treating, testing, or injecting of single or multiple intervals in
a well-bore without the requirement of tripping between operations. The system can be operated via a
single packer or a straddle packer configuration. Full bore capabilities permit maximum pumping rates
with reduced horsepower requirements.

Results: Less Rig Time….Less Horsepower….Less Cost!

The Inflatable Multi-Set Production-Injection Packer is used for isolating zones in open-hole or in casing.
This tool is designed for long-term downhole production or injection applications. The Inflatable Multi-Set
Production-Injection Packer may be used in vertical, deviated, or horizontal wells. No rotation is required
to set the packer or release the packer.

Inflatable packer elements for this tool are 1.67 m. (66 Inches) in length. High strength aircraft cable is
used to provide good expansion characteristics in washed out or irregular well bores. Cable reinforcement
allows these inflatable packer elements to return very close to the original run-in diameter while providing
high differential pressure capabilities. The Packer elements are designed in such a way that bulging due to
high differential pressure is less likely to occur. Due to superior bonding between the cable and rubber
these elements lose less rubber down hole.

¾ APPLICATIONS
Testing
Re-Settable Inflate Test and Treat System may be used for testing zones in open hole or in casing. Zones
may be isolated to determine oil, gas, or water production from certain sections. Testing of each zone will
determine which fluid is produced from that section. Also, testing will determine flow rates the zone.
Electronic Pressure-Temperature Recorders as well as Shut-In Tools may be used with the system to
provide additional subsurface data from zones being tested.

Treating
Multi-Set Inflatable Packers may be used for treating zones in open hole or in casing. Typical treatments
performed through the tool would be fracturing, acidizing, polymer injection for water shut-off, and acid
washes.

Injection
Multi-Set Inflatable Packers may be used for injection of fluids in disposal wells. A large internal bore is
provided through the tool. For long term disposal applications it is very important that materials used in
manufacturing these tools, are able to resist highly corrosive environments typically associated with
disposal wells.

For treating applications, a circulating valve is used above the tool. This valve is opened to allow treatment
fluid to be pumped from surface, to the tool. Once the treatment fluid is spotted to the tool, the circulating
valve is closed, and treatment fluid is then injected to the zone located below the packer.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 32 of 50
¾ OPERATIONAL SEQUENCE

As the RITTS tool is being run into the hole the tool auto-fills due to the large unrestricted bore through the
tool which also permits circulation through the tool. Run in position ensures that the packer element
remains equalized preventing premature inflation of the packer element.

During the inflation sequence a reset dart or ball is launched from surface and pumped onto the seat. Fluid
is then blocked to the annulus and through the packer I.D. Fluid is then diverted through concentric
passages to the inflation channels of the packer element. It is then permissible to increase pressure in even
increments allowing the packer element to fully inflate properly. Once the desired differential pressure is
reached within the element pressure must be held for 10 minutes to allow the packer element to fully square
off.

During the inflation pressure lock-in sequence weight is slacked off onto the tool by shifting the lug
mandrel blocks the inflation channels trapping the pressure in the element. Shifting the lug mandrel also
blocks ports from the I.D. of the tool to the annulus.

Once packer seat is verified tubing pressure can be increased to the pre-determined pressure to shear the
ball seat or the reset dart. In the case of the re-set dart the dart shears allowing the collets to collapse and
pass fully through the tool landing in the dart sub catcher on the bottom of the tool. Fluid is then able to
flow through the large unrestricted bore of the tool to below the packer.

Once testing or treating has been finished weight is picked up off the string to begin the deflation sequence.
The packer element inflation channels and annulus ports are opened allowing the packer to equalize and
deflate close to its original run-in diameter. The tool is now back to its original run-in position ready to be
moved to another interval. Additional darts may be pumped from surface providing virtually unlimited
setting in one trip into the well.

WORLD OIL TOOLS INC.                                                                      Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                            Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                                 www.worldoiltools.com
T2C 1J9                                                                                           Page 33 of 50
¾ RUNNING PROCEDURES

Setting the Multi-Set Packer
• Run in hole to setting depth at moderate speed. Avoid any sudden stops.
• Take additional care in open hole.
• On depth, establish up weights and down weights. The pipe may be circulated or filled, as required.
• Insert the re-set dart into the string. Circulate to depth at 2 bbls/min. and reducing to ¼ bbl/min when
    within 3-5 bbls of the tool.
• Apply 1200 PSI differential pressure at the packer to inflate the element, and hold pressure for 5
    minutes.
• Slack off 5000 pounds weight on the tool to shift the inflate mandrel closed and to check packer
    setting. Once packer setting is confirmed, pressure may be applied in the annulus to check for casing
    leaks.
• If pressure testing must be performed through the drillstring or tubing, apply pressure of 1800 PSI in
    the string to shear out the re-set dart. Note three shears screws are required in the re-set dart (each
    shear screw is rated at 600 PSI). The re-set dart will land into the plug catcher sub run below the
    packer.
• Proceed with pressure testing.

Unsetting and Re-setting the Packer
• To unset the packer, apply an upward pull of 2000 to 5000 pounds to the tool. Wait 15 minutes to
   allow the packer to deflate.
• Position the packer at the next setting depth.
• Insert the re-set dart into the string. Circulate to depth at 2 bbls/min. and reducing to ¼ bbl./min when
   within 3-5 bbls of the tool.
• Apply 1200 PSI differential pressure at the packer to inflate the element, and hold pressure for 5
   minutes.
• Slack off 5000 pounds weight on the tool to shift the inflate mandrel closed and to check packer
   setting. Once packer setting is confirmed, pressure may be applied in the annulus to check for casing
   leaks.
• If pressure testing must be performed through the drillstring or tubing, apply pressure of 1800 PSI in
   the string to shear out the re-set dart. Note three shears screws are required in the re-set dart (each
   shear screw is rated at 600 PSI). The re-set dart will land into the plug catcher sub run below the
   packer.
• Proceed with pressure testing.

Retrieving the Packer
• To unset the packer, apply an upward pull of 2000 to 5000 pounds to the tool. Wait 15 minutes to
    allow the packer to deflate.
• Pull out of the hole.

WORLD OIL TOOLS INC.                                                                 Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                       Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                            www.worldoiltools.com
T2C 1J9                                                                                      Page 34 of 50
¾ DIFFERENTIAL PRESSURE CHART

                                                Inflate Element Differential Pressure Capability

                                                                       Hole Size (mm)
                       101.6     127.0   152.4      177.8      203.2        228.6        254.0     279.4   304.8     330.2     355.6
                    6000                                                                                                           41.4

                    5500                                                                                                              37.9

                    5000                                                                                                              34.5

                    4500                                                                                                              31.0

                                                                                                                                             Pressure (MPa)
                    4000                                                                                                              27.6
   Pressure (PSI)

                    3500                                                                                                              24.1

                    3000                                                                                                              20.7

                    2500                                                                                                              17.2

                    2000                                                                                    7.50" (191mm) Packer      13.8
                                                                                   5.50" (139mm) Packer

                    1500                          4.25" (108mm) Packer                                                                10.3

                    1000                                                                                                               6.9
                           4.0    5.0     6.0         7.0       8.0          9.0         10.0       11.0   12.0      13.0          14.0
                                                                      Hole Size (Inches)

WORLD OIL TOOLS INC.                                                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                                                             www.worldoiltools.com
T2C 1J9                                                                                                                       Page 35 of 50
THRU-TUBING PACKER

                          TECHNICAL DATA SHEET

WORLD OIL TOOLS INC.                              Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                    Fax: +1 403 720 5156
Calgary, Alberta, Canada                         www.worldoiltools.com
T2C 1J9                                                   Page 36 of 50
¾ INTRODUCTION
The Thru-Tubing Inflatable Packer (TTIP) is used for isolating zones in open-hole or in
casing. TTIP’s are normally run through a tubing string and set in larger open-hole or casing
located below the tubing string. The Thru-Tubing Inflatable Packer may be used in vertical,
deviated, or horizontal wells.

In many applications, thru-tubing packer elements are required to expand up to three times the
original run-in diameter, maintain high differential pressure across the packer element, and
then return to its original run-in diameter. High strength Stainless Steel strips are used to
provide excellent expansion characteristics for setting this packer in larger diameter casing or
open-hole located below the tubing string.

A variety of chemical resistant elastomer compounds are available suitable for temperature up
to 350o F (180o C). The thru-tubing inflatable packer elements are typically supplied with a
standard elastomer compound which is suitable for temperatures up to 240o F (115o C); high
temperature compounds are available upon customer request. Long, 48” (1.22m), elastomer
seal lengths provide excellent anchoring capabilities while still maintaining a positive seal in
open-hole or cased hole application.

¾ APPLICATIONS
Permanent Bridge Plug
The Thru-Tubing Permanent Bridge Plug is designed for permanent installation to block
unwanted production from lower zones in a well. The Thru-Tubing Permanent Bridge Plug is
typically run into the well using coiled tubing. The packer is designed such that no balls or
darts need to be pumped from surface in order to operate the tool.

The opening valve in the tool prevents fluid from entering the packer element until the tool is
positioned at the correct setting depth. Pressure is applied in the tubing the opening valve
shears allowing the packer to inflate. As pressure increases in the packer element, the closing
valve shears to permanently lock inflation fluid in the packer. The coiled tubing string is
disconnected from the Thru-Tubing Permanent Bridge Plug by using a hydraulic or shear
style disconnect assembly in conjunction with this packer. Cement may be spotted above the
packer after the coiled tubing has been unlatched.

This packer is not retrievable.

Cement Retainer
The Thru-Tubing Cement Retainer is designed for squeeze cementing. The Thru-Tubing
Cement Retainer is typically run into the well using coiled tubing. This tool is designed so
fluid is allowed to enter the tubing string, and yet no balls or darts are required to be pumped
from surface in order operate the tool. In conjunction with the cement retainer a velocity
valve is used to allow circulation of fluids to the tool, after the packer is set. A double flapper
valve prevents back-flow of cement after squeezing.

The coiled tubing string is disconnected from the cement retainer by use of a hydraulic
disconnect or shear disconnect assembly with this packer. Additional cement may be spotted
above the packer after the coiled tubing has been unlatched.

WORLD OIL TOOLS INC.                                                                     Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                           Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                                www.worldoiltools.com
T2C 1J9                                                                                          Page 37 of 50
¾ APPLICATIONS (CONTINUED)

Multi-Set Packer
The Thru-Tubing Multi-Set packer is used for testing, treating, production or injection. It is
typically run into the well using coiled tubing. The tool is designed so fluid is allowed to
enter the tubing string while running in, yet no balls or darts are necessary to inflate the
packer.

A velocity valve is used in conjunction with the retrievable packer to allow circulation of
fluids to the tool after the packer has been set. The Thru-Tubing Multi-Set packer is typically
used for acidizing, testing or treating zones below the packer. This tool is commonly used for
pressure testing the annulus above the packer after a casing patch has been set.

Retrievable Packer
The Thru-Tubing Retrievable Packer is used for testing, treating, production, injection or as a
retrievable bridge plug. It is typically run into the well using coiled tubing. The tool is
designed so fluid is allowed to enter the tubing string while running in, yet no balls or darts
are necessary to inflate the packer.

The opening valve in the tool prevents fluid from entering the packer element until the tool is
positioned at the correct setting depth. Pressure is applied in the tubing the opening valve
shears allowing the packer to inflate. As pressure increases in the packer element, the closing
valve shears to permanently lock inflation fluid in the packer. The valve cannot be re-opened
when squeeze pressure is applied to the tubing. A velocity valve is used in conjunction with
the retrievable packer to allow circulation of fluids to the tool after the packer has been set.
An expendable ball and seat assembly allows fluid to be pumped through the packer.

WORLD OIL TOOLS INC.                                                                  Tel: +1 403 720 5155
Bay#6, 3504 – 72nd Avenue S.E.                                                        Fax: +1 403 720 5156
Calgary, Alberta, Canada                                                             www.worldoiltools.com
T2C 1J9                                                                                       Page 38 of 50
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