ctrb_000248 IRBP Rev 13-12-2001

Thru-Tubing INFLATABLE PACKERS

COILED TUBING INFLATABLE RETRIEVABLE BRIDGE PLUG (IRBP) The Weatherford IRBP is a high performance inflatable bridge plug that incorporates a high expansion inflatable element and a robust chassis for remedial bridge plug applications. The IRBP is a single set tool which must be returned to the surface and redressed prior to using again. Applications: The IRBP is suitable for stimulation and workover applications when a bridge plug must pass through a restriction in the tubing or out into the casing. The IRBP can be used in temporary or permanent applications. It can be used for isolation purposes such as wellhead change outs or perforated intervals, gravel pack screens, slotted liners and tubing/casing. The IRBP can be used to stimulate an upper perforated interval. An electric line deployed IRBP is available, see literature regarding the E-IRBP. Features: • Incorporates Weatherford’s patent pending “Get A Grip”TM Anchoring Technology • Equalization takes place inside and outside of the toolstring during retrieval • Can be equipped with the Weatherford Thermal Compensator for applications requiring wide temperature variations • High performance inflation elements capable of 3-1 expansion and temperatures in excess of 300° F in some applications • Straight pull release Specification Guide: TOOL O.D. in/ m m

OVERALL L E N GTH in/m m

STANDARD SEAL LENGTH OF INFLATION ELEMENT in/m m

MAXIMUM CASING SIZE in/ m m

ASSEMBLY NUMBER

1.690 42,93

86.20 2189,48

44.50 1130,30

5 127,00

TT3550169002

1.813 46,05

86.20 2189,48

44.50 1130,30

5-1/2 139,70

TT3550181002

2.130 54,10

86.20 2189,48

44.50 1130,30

7 177,80

TT3550213002

2.438 61,93

86.20 2189,48

44.50 1130,30

7-5/8 193,68

TT3550244002

2.500 63,50

86.20 2189,48

44.50 1130,30

7-5/8 193,68

TT3550250002

2.875 73,03

86.20 2189,48

44.50 1130,30

7-5/8 193,68

TT3550288002

3.375 85,73

86.20 2189,48

44.50 1130,30

9-5/8 244,48

TT3550338002

Coiled Tubing Inflatable Retrievable Bridge Plug (IRBP)

© 2001 WEATHERFORD®. All Rights Reserved.

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Houston, TX USA

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800/257-3826

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 1 OF 25

COILED TUBING INFLATABLE RETRIEVABLE BRIDGE PLUG (IRBP) The Weatherford IRBP is a high performance inflatable bridge plug that incorporates a high expansion inflatable element and a robust chassis for remedial bridge plug applications. The IRBP is a single set tool which must be returned to the surface and redressed prior to using again. The IRBP is suitable for stimulation and workover applications when a bridge plug must pass through a restriction in the tubing or out into the casing. The IRBP can be used in temporary or permanent applications. It can be used for isolation purposes such as wellhead change outs or perforated intervals, gravel pack screens, slotted liners and tubing/casing. The IRBP can be used to stimulate an upper perforated interval. An electric line deployed IRBP is available, see literature regarding the E-IRBP. SPECIFICATION GUIDE TOOL O.D. in/ m m

OVERALL L E N GTH in/m m

STANDARD SEAL LENGTH OF INFLATION ELEMENT in/m m

MAXIMUM CASING SIZE in/ m m

ASSEMBLY NUMBER

1.690 42,93

86.20 2189,48

44.50 1130,30

5 127,00

TT3550169002

1.813 46,05

86.20 2189,48

44.50 1130,30

5-1/2 139,70

TT3550181002

2.130 54,10

86.20 2189,48

44.50 1130,30

7 177,80

TT3550213002

2.438 61,93

86.20 2189,48

44.50 1130,30

7-5/8 193,68

TT3550244002

2.500 63,50

86.20 2189,48

44.50 1130,30

7-5/8 193,68

TT3550250002

2.875 73,03

86.20 2189,48

44.50 1130,30

7-5/8 193,68

TT3550288002

3.375 85,73

86.20 2189,48

44.50 1130,30

9-5/8 244,48

TT3550338002

REQUIREMENTS In addition to information contained in this tech unit, the following tools are required: Installation Tools, Fishneck Nut (TT3550213235) #2 Adaptor (TT3170169296) Suitable Bench Vise Pipe Wrenches (18”) Lubricant - Lubriplate™ #930 AA or equivalent Teflon™ Tape Manual or Pneumatic Pump (capable of pumping water) Scotch Brite™ Scouring Pad (for use inside pipe wrench jaws to prevent scarring) 50/50 Glycol/Water mixture and Glycol Pump

Coiled Tubing Inflatable Retrievable Bridge Plug (IRBP) © 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 2 OF 25

6. Remove the Severing Tension Bolts (28) from the Anchor Plate and the Slide Sub (24). 7. Using a back-up on the lower connection of the Inflation Element (23) break the Slide Sub free.

DISASSEMBLY Thoroughly clean all parts and inspect for damage. Replace parts as needed. To minimize corrosion damage, coat all parts with oil.

NOTE: It may be easier to remove the Slide Sub if Lubriplate™ is applied to the Mandrel below the Slide Sub before breaking. This reduces the friction from the three O-rings in the Slide Sub.

1. Place the IRBP in a vise at the top connection on the element and support the free end with a stand. 2. Remove the Set Screw (35) from the Bull Nose (32).

DIAGRAM 4

DIAGRAM 1

8. Unscrew the Inflation Element from the Bottom Sub (16).

3. Unscrew the Bull Nose from the end of the Mandrel Sub-assembly (22). Unscrew the Plug Catcher (34) from the Bull Nose. Remove the Shear-Out Piston from the Plug Catcher. Remove and discard sheared Dogs from the Shear-Out Piston. 4. Unscrew and discard the remaining Shear Screws (35) from the body of the Bull Nose. 5. Remove the Anchor Cap (27) and Anchor Plate (26) from the Mandrel.

DIAGRAM 5 9. Slide the Inflation Element off of the Mandrel and set it aside.

DIAGRAM 2

DIAGRAM 6

DIAGRAM 3 © 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

10. Remove the Back-Up Ring (21) from over the Mandrel and set aside. 11. Remove Set Screw (29) from the Bottom Sub.

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 3 OF 25

14. Place the Control Head of the IRBP in a vise at the Housing (12).

DIAGRAM 7 DIAGRAM 10 12. Unscrew the Mandrel from the Bottom Sub by placing a wrench just below the bottom of the welded sleeve on the Mandrel. Buff out any ridges or burrs created during removal of the Mandrel. 13. Using the Fishneck Nut Removal Tool (TT3550213235) remove the Fishneck Nuts (17) from the bottom of the Equalizing Fishneck (1).

15. Remove the Bottom Sub (16) from the Housing and set aside.

DIAGRAM 11 16. Remove the E-Ring (2) above the Equalizing Sleeve (5) and allow the Spring (6) to expand to its unloaded length. 17. Unscrew the Poppet Seat (7) from the Housing. Remove the Poppet Pedestal (13), Shear Ring (15) and Spring (6) from the Equalizing Fishneck.

DIAGRAM 8

DIAGRAM 9

DIAGRAM 12

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

18. Unscrew the Shear Screws (8) from the Poppet Seat. 19. Place the Poppet Seat in a vise and remove the Equalizing Fishneck from the Poppet Seat. Remove and discard the sheared Dogs from the mill spots on the Equalizing Fishneck. 20. Remove the Poppet Sub-assembly (10) from the I.D. of the Poppet Seat. 21. Remove the Spring from the Equalizing Fishneck.

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 4 OF 25

ASSEMBLY Gather all parts per parts list. Inspect all threads and sealing surfaces to ensure all parts are free of damage, paying special attention to areas near sealing members. Repair or replace as necessary. Anti-galling compound should be used on all threads. Downhole grease, such as Lubriplate™ should be used on all O-rings. To avoid damage to parts, use a soft jaw vise and strap wrenches when tightening connections. 1. Install O-rings to all parts except those on the Equalizing Fishneck (1). 2. Install four O-rings (4) into top four grooves at the top of the Fishneck.

DIAGRAM 13 22. Remove Equalizing Sleeve from the Equalizing Fishneck.

DIAGRAM 1 3. Apply grease to the inside of the Equalizing Sleeve (5).

DIAGRAM 14 23. Remove all O-rings from the disassembled parts and discard. 24. Wash grease and debris from parts and dry. 25. Inspect parts for damage and replace as necessary. 26. Apply a light coat of corrosion inhibitor, such as WD-40™ or oil to the parts and store accordingly.

DIAGRAM 2

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

4. Apply Lubriplate™ to Fishneck. Insert Equalizing Sleeve over end of Fishneck. Slide the Equalizing Sleeve over O-rings until it shoulders against the Fishneck profile nut at the top of the Fishneck.

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 5 OF 25

6. Inspect inside lips of the Poppet Seat (7) for burrs; remove and clean if necessary. Apply a light layer of grease to the I.D. of the Poppet Seat. NOTE: Check specific job procedure for proper quantity of screws. Number of Shear Screws determines the pull load required to deflate the IRBP for retrieval; each screw requires a shear force of 1,000 lb.

DIAGRAM 5

DIAGRAM 3 5. Slip a Spring (6) over the Equalizing Fishneck sub-assembly and under the skirt of the Equalizing Sleeve, slipping it into position until it stops.

7. Adjust Poppet Seat (7) until shear pin groove in the Equalizing Fishneck (1) aligns with tapped holes in Poppet Seat. Install appropriate number of shear screws per job requirements. NOTE: Take care to prevent O-ring damage; if damage is suspected, disassemble and redress.

DIAGRAM 6

DIAGRAM 4

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

8. Slide the Spring (6) and Equalizing Sleeve down, compress the Spring. Install E-ring (2) into the exposed groove.

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 6 OF 25

10. Slide the Shear Ring (15) over the Poppet Pedestal (13) and align holes, then secure with two Shear Screws (14).

DIAGRAM 7 DIAGRAM 10 11. Clamp the Housing (12) in a vise with the deep end facing up. Insert the Poppet Pedestal and Shear Ring sub-assembly into the Housing, Shear Ring end first, until the Shear Ring shoulders inside. The long lip of the Poppet Pedestal should be pointing up, as shown in the Diagram 11 below.

DIAGRAM 8 9. Install the last two O-rings (4) onto the bottom of the Equalizing Fishneck and apply grease to the exposed O-rings. Slide the Poppet Sub-assembly (10), molded-end first, over the end of the Equalizing Fishneck and into contact with the Poppet Seat, ensuring that the internal O-rings in the Poppet slide over the O-rings on the Equalizing Fishneck and completely engage the seat.

DIAGRAM 11

NOTE: At this time, inspect O-rings for any damage, and redress if necessary.

DIAGRAM 9 © 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

12. Install the bottom end of the Equalizing Fishneck (1) into the Housing (12) and through the I.D. of the Poppet Pedestal (13), engage threads, and make up Poppet Seat to (7) Housing until it shoulders. NOTE: Take care to listen during make up to ensure the small Shear Screws do NOT shear.

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 7 OF 25

14. Install the Bottom Sub (16) over the exposed end of the Equalizing Fishneck and thread it onto the bottom of the Housing. The smaller I.D. end of the Bottom Sub is positioned over the Fishneck and engages the two O-rings (4), making it necessary to compress the Spring to start and make up the Bottom Sub.

To ensure the integrity of the Shear Screws, unscrew the Poppet Seat from the Housing, and remove the Poppet Pedestal and Shear Ring sub-assembly for inspection. Sheared screws must be replaced. Reassemble, ensuring the Poppet is completely shouldered in the Poppet Seat, and that component part numbers match the parts list according to Page 24.

DIAGRAM 15

DIAGRAM 16 DIAGRAM 12

DIAGRAM 17

DIAGRAM 13 13. Remove the assembly from the vise, invert, and re-clamp snugly on the middle of the Housing (12). Slide a Spring (6) over the exposed end of the Equalizing Fishneck, through the inside of the Poppet Pedestal until it contacts the Poppet.

15. Using the Installation Tool (TT3550213235) and two Fishneck Nuts (17), slide a nut over the end of the Fishneck, slots down, or exposed, and thread the nut down until it shoulders. NOTE: Do NOT use a wrench, hand tighten only.

DIAGRAM 18 DIAGRAM 14 © 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

16. Slide the second nut, slots down, over the end of the Fishneck and again thread the nut onto the Fishneck until it shoulders against the first nut.

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 8 OF 25

19. Liberally coat the entire length of the Mandrel Sub-assembly with grease.

DIAGRAM 22 DIAGRAM 19 20. Insert the Grip Ring Back-up Ring (21) flush against the Grip Ring inside the Inflation Element (23). Position the Inflation Element so that the exposed straps are oriented properly (usually, closest to the control head). Slide the Inflation Element over the Mandrel Sub-assembly, taking care NOT to damage the inside surface of the rubber bladder.

17. After verifying that O-rings (18) are in place, remove this assembly from the vise, turn it sideways, and re-clamp on the middle of the Housing (12). Take the Mandrel Sub-assembly (22) and thread the large end into the Bottom Sub, securing it tightly with a wrench.

DIAGRAM 20 DIAGRAM 23

18. Install the Set Screw (20) through the side of the Bottom Sub (16), and tighten against the top of the Mandrel sub-assembly.

21. Make up the Inflation Element to the Bottom Sub (16). Tighten securely with a wrench. CAUTION: Do NOT allow the element I.D. to drag on the Mandrel.

DIAGRAM 21

DIAGRAM 24 © 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

22. Install the Slide Sub (24) over the end of the Mandrel, taking care not to damage the seals.

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 9 OF 25

25. Slide the PLT Anchor Cap (27) over the end of the Mandrel and PLT Anchor Plate (26).

DIAGRAM 25 DIAGRAM 27

23. Engage the threads of the Inflation Element and tighten securely with a wrench. NOTE: Do NOT twist the Inflation Element. Hold backup on the end of the element connection adjacent to the Slide Sub during tightening.

26. Thread the Bull Nose (32) onto the end of the Mandrel and secure in place using the Set Screw (29).

DIAGRAM 28 27. Install the #2 Parker Plug (25) into the side of the Slide Sub (24).

DIAGRAM 26 24. Slide the PLT Anchor Plate (26) over the end of the Mandrel and butt it up to the Slide Sub, securing it to the Slide Sub with two Severing Tension Bolts (28). NOTE: Be careful NOT to twist the heads off of the Screws, and tighten them evenly to prevent the Anchor Plate from moving.

NOTE: This plug will be removed later for testing and venting the Inflation Element. 28. Coat external surfaces of the Shear-Out Plug (33) and internal surfaces of the Bull Nose (32) with grease. Insert Shear-Out Plug, small end first, into the Bull Nose until it shoulders.

DIAGRAM 29

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 10 OF 25

PURGING

29. To hold the Shear-Out Plug in place, install the proper number of Shear Screws (35) in the Bull Nose (32). Thread each screw down, then back off approximately 1/8 turn.

Before running or testing any inflatable product, it is necessary to purge the element of air and fill it with fluid. Without proper purging, an Inflation Element will be catastrophically damaged when exposed to external pressure, even at low pressures. Use the following procedure to purge the packer of air:

NOTE: Each Screw shears at 275 psi; thus, four screws allow the IRBP to inflate to 1100 psi before shearing out.

1. Remove the #2 Parker Plug from the Slide Sub (24), and connect the #2 Parker Adaptor (TT3170169296) to the Slide Sub. Connect a hand pump filled with a 50/50 mixture of glycol/ water. 2. Pump into the Inflation Element unit it expands slightly. Stop pumping and bleed the pressure back into the hand pump. Pump into the Inflation Element again until it expands slightly, and then bleed the internal pressure back into the hand pump. Repeat this process until air is no longer heard, to flow into the pump. DIAGRAM 30

CAUTION: The glycol/water mixture will squirt from the plug port when the pump is removed. Do NOT tilt the plug in such a way that additional glycol/water can flow from the plug.

30. Make up the Shear-Out Plug Catcher (34) to the Bull Nose (32), securing with a wrench. Position your hold on the Bull Nose to prevent twisting the Mandrel or Inflation Element.

When the #2 Parker Plug is secure, the IRBP is ready for field use. Measure the O.D. of the element to ensure it is not partially inflated. If it is, bleed fluid from the #2 Parker Plug as necessary.

DIAGRAM 31

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 11 OF 25

TESTING PROCEDURE This test is to ensure that the Retrievable Bridge Plug can hold an internal inflate pressure without leakage, indicating correct assembly with no damage to sealing elements. Use a test scabbard for this procedure. A test scabbard is a 48” length of pipe with an I.D. that is no more than 1/8” larger than the Inflation Element. The test scabbard will limit the expansion of the Inflation Element during the test. CAUTION: If the element inflates excessively and takes a permanent set, during testing, it must be replaced. 1. Install Hydro Test Sub to Control Head of IRBP. NOTE: Use Hydro Test Sub P/N: TT3010000R for IRBP sizes 1-11/16” thru 1-13/16” and P/N TT3009000R for IRBP sizes 2-1/8” thru 3-3/8”. 2. Slide Lower Housing (of Hydro Test Sub) over Poppet Seat with pin facing up. 3. Apply Lubriplate™ to I.D. of Upper Housing (of Hydro Test Sub) and O.D. of Equalizing Sleeve. 4. Insert both halves of Split Ring (of Hydro Test Sub) into O.D. groove near top of Poppet Seat. 5. Slide the Top Housing over top of the IRBP so it encloses the Split Ring. 6. Screw the Upper and Lower Housing (Hydro Test Sub together and tighten. 7. Slide the test scabbard over the Inflation Element. 8. Remove the #2 Parker Plug (15) from the side of the Slide Sub (24), and connect the #2 Adaptor (TT3170169296) in its place. 9. Connect a pneumatic or manual high pressure pump, with pressure gauge, to the #2 Adaptor. 10. Pump water and inflate element to 300 psi and inspect for leaks. 11. Increase pressure to 500 psi, and inspect for any leakage. 12. Continue pumping, increasing pressure to 1000 psi, then hold momentarily before shutting off the pump. Pressure should remain above 900 psi during the next 15 minutes. NOTE: Fluid leakage through the Mandrel indicates missing or damaged O-rings on the Equalizing Sleeve, requiring repair. 13. If plug pressure remains above 900 psi and no leaks are visible, the plug may be de-pressurized and purged for field use. Bleed pressure from the plug and purge according to Purging Procedure. NOTE: If leaks are visible and/or plug pressure dropped below 900 psi, reconnect the pump and maintain plug pressure at 1000 psi while locating the leak. Once the leak is found, bleed pressure from the Inflation Element, disassemble, and repair. After repair, reassemble the plug per this procedure and re-test. PROCEDURE TO CONNECT THE XFLO SETTING TOOL TO THE IRBP 1. Unscrew the Set Screw from the Top Sub of the ‘XFLO’ Setting Tool. 2. Partially unscrew the Top Sub of the Setting Tool. Leave 2-3 threads engaged. 3. Place the IRBP in a vise with the opposite end supported with a stand. 4. Apply Lubriplate™ to the O-ring on the Equalizing Sleeve (5) of the IRBP. 5. Place the Setting Tool over the Fishneck (1) and push down against the Equalizing Sleeve to seat the collets in the groove in the Poppet Seat (7). 6. Slide the sub-assembly in the vise so that the collet body of the Setting Tool can be clamped down. 7. Use a wrench to re-tighten the Top Sub of the Setting Tool. Replace Set Screw in the Top Sub. © 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 12 OF 25

RUNNING PROCEDURES 1.0 INTRODUCTION The following are the recommended general procedures for running a 1-11/16” – 3-3/8” Weatherford Inflatable Retrievable Bridge Plug (IRBP) on coiled tubing in wellbore fluids. These procedures should be modified as necessary to achieve optimum field results. If the IRBP is run and set in a gas environment, a different toolstring and running procedure should be used. The toolstring shown in Figure 1 (Page 21) is the recommended configuration when running and setting an IRBP in wellbore fluids. 2.0 REQUIRED DOCUMENTS Weatherford Hydraulic Disconnect, Assembly Procedure Weatherford IRBP, Assembly Procedure Weatherford ‘XFLO’ Setting Tool, Assembly Procedure Weatherford Hydraulic Retrieval Tool (XHRT), Assembly Procedure Weatherford Inflation Element (Model TT313) Differential Pressure Capability Chart 3.0 REQUIRED TOOLING See individual tool requirements Standard hand tools for string make up 4.0 RUNNING PROCEDURES The condition of the Wellbore will determine the remainder of the operation. The Wellbore will fall into one of three categories: A. B. C. D.

Well bore full to surface. Well bore low fluid level. Wellbore dry gas. Stacking plugs in blank pipe.

The following procedure addresses Condition A: well bore full to surface with fluid. 1. Determine wellbore conditions to verify viability of the Inflation Element for each particular job, i.e. cross-flow, pressure above plug, pressure below plug, bleed down, etc. NOTE: If any uncertainty exists over the viability of the plug, contact a Weatherford representative to discuss the specific operation in greater detail. 2. Prior to loading out equipment, thoroughly inspect each toolstring component in accordance with the appropriate equipment manual. Verify proper toolstring make up. Verify that all Pump-Down Balls will pass through tools which reside above their mating seat. Use only non-magnetic Pump-Down Balls. Verify the dimensional conformance of the balls. 3. Determine the operational characteristics of the pump that will be used on the job. The ‘XFLO’ Setting Tool operates at a lower flow rate than some pumps are capable of performing. See Table 1 (Page 19) for the operational characteristics of the specific size 'XFLO' Setting Tool. If the pump operates higher than the operational rates of the Setting Tool, a squeeze manifold must be used on the job. A flow meter and pressure gage must be used downstream of the squeeze manifold to determine the flow rates and pressures to the Setting Tool.

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 13 OF 25

4. Once on site, pump a sufficient volume of fluid through the CT reel to sweep debris from the tubing. Pump the largest ball to be used in the operation through the tubing. Determine the pressure loss through the coil at the operational flow rates of the Setting Tool. NOTE: Scale/Debris in the CT may detrimentally affect the setting operation. If in doubt about the condition of the coiled tubing it should be pickled or a pig pumped thru to sweep debris and/or scale out prior to RIH. 5. Make up the toolstring to the end of the CT using the sequence shown in Figure 1 (Page 21). 6. Pull the toolstring up into the lubricator and test the lubricator per the operator’s requirements. Test the lubricator with water/glycol mixture. Do not subject the IRBP to differential pressure or rapid pressure changes that could inadvertently actuate a component in the toolstring. NOTE: Run in the hole at a slow rate (75 feet per minute maximum RIH rate). Unless absolutely necessary do not work the IRBP past tight spots. Do not slack off weight onto the IRBP prior to inflation. 7. Run the toolstring in the hole at a slow rate of speed (75 fpm maximum, unless otherwise specified). NOTE: Do NOT pump into CT during RIH unless otherwise advised by a Weatherford Representative. However, do not exceed 200 psi hydrostatic pressure above the well bore pressure to the IRBP during RIH to prevent premature inflation of the IRBP. 8. Run to the end of the tubing. If a Tubing End Locator (TEL) is used, locate the end of tubing and correlate with E/L Logs. Determine the pick-up and run-in weight at the end of the tubing. 9. Run the IRBP to a location below the intended setting depth, while doing so, determine the run-in weight at the IRBP setting depth. Do not slack-off weight onto the IRBP before inflation. Pick-up to the setting depth. Determine the pickup weight at the setting depth. 10. Record surface pressure versus time and pump rate versus time on a chart recorder from this point in time until the setting operation is completed. 11. Wait 30 - 60 minutes to allow the fluid in the CT to come up to the temperature of the wellbore fluid on the outside of the CT. 12. Pump into the CT at 1/4 bpm and allow the coiled tubing to fill to the surface. Use a squeeze manifold to lower pump rates to the IRBP when necessary. When using a squeeze manifold install a flow meter and pressure gage down stream of the manifold. 13. Continue pumping, gradually increase flow rate to reach 500 psi, at the tool, for 10 - 15 minutes. 14. Continue pumping and increase flow rate to reach 800 - 1000 psi, at the tool, for 10 - 15 minutes. Slack off 500 lb. onto the IRBP and maintain slack off for the remainder of the inflation process. 15. Continue pumping and increase flow rate to reach 1300 - 1500 psi, at the tool, for 10 - 15 minutes. Maintain slack off on the IRBP for the remainder of the inflation process. 16. Continue pumping and increase flow rate to reach 1500 - 1700 psi, at the tool for 10 - 15 minutes. Maintain slack off on the IRBP for the remainder of the inflation process. 17. Increase the flow rate to reach the setting pressure (1750 psi). At this pressure the Shear-Out Plug on the bottom of the IRBP is actuated, completing the inflation of the IRBP. When the IRBP is set the pressure drop of 400-800 psi will be noticeable at the surface. 18. Stop pumping and slack off 1000 lb. at the top of the plug. Resume pumping at last flow rate. Slowly pick up off of the IRBP. Monitor pick-up weight to determine that the Setting Tool is free of the IRBP. Pick-up weight, when free from the IRBP, will equal the pick-up weight determined in Step 9. If pick-up indicates the IRBP is still caught, stop pumping and slack off an additional 1000-2000 lb. onto IRBP. Resume pumping, increase flowrate 300 psi greater than previous flowrate and re-attempt pick up free from IRBP. 19. When free of the IRBP, POOH. CAUTION: Do NOT set down to tag the top of the IRBP. This could re-latch the Setting Tool to the IRBP, or damage the element.

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 14 OF 25

The following procedure addresses Condition B: wellbore full to some distance below surface. 1. Determine wellbore conditions to verify viability of the Inflation Element for each particular job, i.e. cross-flow, pressure above plug, pressure below plug, bleed down, etc. NOTE: If any uncertainty exists over the viability of the plug, contact a Weatherford representative to discuss the specific operation in greater detail. 2. Prior to loading out equipment, thoroughly inspect each toolstring component in accordance with the appropriate equipment manual. Verify proper toolstring make up. Verify that all Pump-Down Balls will pass through tools which reside above their mating seat. Use only non-magnetic Pump-Down Balls. Verify the dimensional conformance of the balls. 3. Determine the operational characteristics of the pump that will be used on the job. The 'XFLO' Setting Tool operates at a lower flow rate than some pumps are capable of performing. See Table 1 (Page 19) for the operational characteristics of the specific size 'XFLO' Setting Tool. If the pump operates higher than the operational rates of the Setting Tool, a squeeze manifold must be used on the job. A flow meter and pressure gage must be used downstream of the squeeze manifold to determine the flow rates and pressures to the Setting Tool. 4. Once on site, pump a sufficient volume of fluid through the CT reel to sweep debris from the tubing. Pump the largest ball to be used in the operation through the tubing. Determine the pressure loss through the coil at the operational flow rates of the Setting Tool. NOTE: Scale/Debris in the CT may detrimentally affect the setting operation. If in doubt about the condition of the coiled tubing it should be pickled or a pig pumped thru to sweep debris and/or scale out prior to RIH. NOTE: In low fluid wells displace an amount of fluid greater than or equal to the distance from surface to the known fluid level in well back through the CT using nitrogen or open the reel valve while running in well so that IRBP does not prematurely inflate. 5. Make up the toolstring to the end of the CT using the sequence shown in Figure 1 (Page 21). 6. Pull the toolstring up into the lubricator and test the lubricator per the operator’s requirements. Test the lubricator with water/glycol mixture. Do not subject the IRBP to differential pressure or rapid pressure changes that could inadvertently actuate a component in the toolstring. NOTE: Run in the hole at a slow rate (75 feet per minute maximum RIH rate). Unless absolutely necessary do not work the IRBP past tight spots. Do not slack off weight onto the IRBP prior to inflation. 7. Run the toolstring in the hole at a slow rate of speed. 8. Run to the end of the tubing. If a Tubing End Locator (TEL) is used, locate the end of tubing and correlate with E/L Logs. Determine the pick-up and run-in weight at the end of the tubing. 9. Run the IRBP to a location below the intended setting depth, while doing so, determine the run-in weight at the IRBP setting depth. Do not slack-off weight onto the IRBP before inflation. Pick-up to the setting depth. Determine the pick-up weight at the setting depth. 10. Record surface pressure versus time and pump rate versus time on a chart recorder from this point in time until the setting operation is completed. 11. Wait 30 - 60 minutes to allow the fluid in the CT to come up to the temperature of the wellbore fluid on the outside of the CT. 12. Pump into the CT at 1/4 bpm and allow the coiled tubing to fill to a hydrostatic pressure equal to well bore pressure at setting depth. Use a squeeze manifold to lower pump rates to the IRBP when necessary. When using a squeeze manifold install a flow meter and pressure gage down stream of the manifold. 13. Continue pumping and increase hydrostatic pressure in coil to reach 500 psi over wellbore pressure, at the tool. Allow sufficient time for IRBP to inflate before proceeding. 14. Continue pumping and increase hydrostatic pressure in coil to reach 800 - 1000 psi over well bore pressure, at the tool. Slack off 500 lb. onto the IRBP and maintain slack off for the remainder of the inflation process. Allow sufficient time for the IRBP to inflate to this pressure before proceeding. © 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 15 OF 25

15. Continue pumping and increase hydrostatic pressure in coil to reach 1300 - 1500 psi over well bore pressure, at the tool. Maintain slack off for the remainder of the inflation process. Allow sufficient time for the IRBP to inflate to this pressure before proceeding. 16. Continue pumping and increase hydrostatic pressure in coil to reach 1500 - 1700 psi over well bore pressure, at the tool. Maintain slack off for the remainder of the inflation process. Allow sufficient time for the IRBP to inflate to this pressure before proceeding. 17. Increase the hydrostatic pressure in the coil to reach 1750 - 1850 psi over wellbore pressure, at the tool. At this pressure the Shear-Out Plug on the bottom of the IRBP will actuate, completing the inflation of the IRBP. NOTE: When the IRBP is set in a partially full well bore the pressure drop will NOT be noticed at surface unless the coiled tubing fills to surface prior to reaching setting pressure at setting depth. 18. Begin pumping and allow coiled tubing to fill to the surface. Increase flow rate to reach the Actuation Flowrate Pressure for the specific Circulation Nozzle used in the Setting Tool (See Table 1 on Page 19). Maintain slack off weight of 700-1000 lb. on the IRBP. 19. Slowly pick up off of the IRBP. Monitor pick-up weight to determine that the Setting Tool is free of the IRBP. Pick-up weight, when free from the IRBP, will equal the pick-up weight determined in Step 9. If pick-up indicates the IRBP is still caught stop pumping and slack off 700-1000 lb. on the IRBP. Resume pumping and increase flow rate to ~200 psi higher and pick up off of IRBP. 20. When free of the IRBP, POOH. CAUTION: DO NOT set down to tag the top of the IRBP. This could re-latch the FAST to the IRBP, or damage the element. The following procedure addresses Condition C: Wellbore dry gas. 1. Determine wellbore conditions to verify viability of the Inflation Element for each particular job, i.e. cross-flow, pressure above plug, pressure below plug, bleed down, etc. NOTE: If any uncertainty exists over the viability of the plug, contact a Weatherford representative to discuss the specific operation in greater detail. 2. Prior to loading out equipment, thoroughly inspect each toolstring component in accordance with the appropriate equipment manual. Verify proper toolstring make up. Verify that all Pump-Down Balls will pass through tools which reside above their mating seat. Use only non-magnetic Pump-Down Balls. Verify the dimensional conformance of the balls. 3. Determine the operational characteristics of the pump that will be used on the job. The 'XFLO' Setting Tool operates at a lower flow rate than some pumps are capable of performing. See Table 1 (Page 20) for the operational characteristics of the specific size 'XFLO' Setting Tool. If the pump operates higher than the operational rates of the Setting Tool, a squeeze manifold must be used on the job. A flow meter and pressure gage must be used downstream of the squeeze manifold to determine the flow rates and pressures to the Setting Tool. 4. Once on site, pump a sufficient volume of fluid through the CT reel to sweep debris from the tubing. Pump the largest ball to be used in the operation through the tubing. Determine the pressure loss through the coil at the operational flow rates of the Setting Tool. NOTE: If hydrostatic pressure in CT, at setting depth, exceeds SIWHP displace volume of fluid from the coiled tubing equal to the hydrostatic head imbalance at the setting depth. NOTE: Scale/Debris in the CT may detrimentally affect the setting operation. If in doubt about the condition of the coiled tubing it should be pickled or a pig pumped thru to sweep debris and/or scale out prior to RIH. 5. Make up the toolstring to the end of the CT using the sequence shown in Figure 1 (Page 21).

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 16 OF 25

6. Pull the toolstring up into the lubricator and test the lubricator per the operator’s requirements. Test the lubricator with water/glycol mixture. Do not subject the IRBP to differential pressure or rapid pressure changes that could inadvertently actuate a component in the toolstring. NOTE: Run in the hole at a slow rate (75 feet per minute maximum RIH rate). Unless absolutely necessary do not work the IRBP past tight spots. Do not slack off weight onto the IRBP prior to inflation. 7. Run the toolstring in the hole at a slow rate of speed. After RIH 300' open reel valve and allow coiled tubing to drain. NOTE: Do NOT pump into CT during RIH unless otherwise advised by a Weatherford Representative. However, do not exceed 200 psi hydrostatic pressure above the well bore pressure to the IRBP during RIH to prevent premature inflation of the IRBP. 8. Run to the end of the tubing. If a Tubing End Locator (TEL) is used, locate the end of tubing and correlate with E/L Logs. Determine the pick-up and run-in weight at the end of the tubing. 9. Run the IRBP to a location below the intended setting depth, while doing so, determine the run-in weight at the IRBP setting depth. Do not slack-off weight onto the IRBP before inflation. Pick-up to the setting depth. Determine the pick-up weight at the setting depth. 10. Record surface pressure versus time and pump rate versus time on a chart recorder from this point in time until the setting operation is completed. 11. Wait 30 - 60 minutes to allow the fluid in the CT to come up to the temperature of the wellbore fluid on the outside of the CT. 12. Pump into coiled tubing at 1/4 bpm until fluid equal to 500 psi hydrostatic is displaced. Shut down pump, wait 1015 minutes for inflation. 13. Resume pumping at 1/4 bpm until volume equal to 800-1000 psi hydrostatic pressure (in tubing) has been displaced. Shut down pump, wait 10-15 minutes. NOTE: Once inflation starts the fluid pumped into the coiled tubing will begin to fill the annulus above the IRBP. This is will have a balancing affect and is the reason more fluid must be displaced in subsequent steps. It is necessary to increase the hydrostatic pressure this way to achieve setting of the IRBP. 14. Continue pumping and increase hydrostatic pressure in coil to reach 1300 - 1500 psi over well bore pressure, at the tool. Maintain slack off for the remainder of the inflation process. Allow sufficient time for the IRBP to inflate to this pressure before proceeding. 15. Continue pumping and increase hydrostatic pressure in coil to reach 1500 - 1700 psi over well bore pressure, at the tool. Maintain slack off for the remainder of the inflation process. Allow sufficient time for the IRBP to inflate to this pressure before proceeding. 16. Increase the hydrostatic pressure in the coil to reach 1750 - 1850 psi over wellbore pressure, at the tool. At this pressure the Shear-Out Plug on the bottom of the IRBP will actuate, completing the inflation of the IRBP. NOTE: When the IRBP is set in a partially full well bore the pressure drop will NOT be noticed at surface unless the coiled tubing fills to surface prior to reaching setting pressure at setting depth. 17. Begin pumping and allow coiled tubing to fill to the surface. Increase flow rate to reach the Actuation Flowrate Pressure for the specific Circulation Nozzle used in the Setting Tool (See Table 1 on Page 19). Maintain slack off weight of 700-1000 lb. on the IRBP. 18. Slowly pick up off of the IRBP. Monitor pick-up weight to determine if the Setting Tool is free of the IRBP. Pick-up weight, when free from the IRBP, will equal the pick-up weight determined in Step 9. If pick-up indicates the IRBP is still caught stop pumping and slack off 700-1000 lb. at the IRBP. Resume pumping and increase flow rate to ~200 psi higher and pick up off of IRBP. 19. When free of the IRBP, POOH. CAUTION: Do NOT set down to tag the top of the IRBP. This could re-latch the Setting Tool to the IRBP, or damage the element. © 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 17 OF 25

The following procedure addresses Condition D: Stacking plugs in blank pipe. 1. Determine wellbore conditions to verify viability of the Inflation Element for each particular job, i.e. cross-flow, pressure above plug, pressure below plug, bleed down, etc. NOTE: If any uncertainty exists over the viability of the plug, contact a Weatherford representative to discuss the specific operation in greater detail. 2. Prior to loading out equipment, thoroughly inspect each toolstring component in accordance with the appropriate equipment manual. Verify proper toolstring make up. Verify that all Pump-Down Balls will pass through tools which reside above their mating seat. Use only non-magnetic Pump-Down Balls. Verify the dimensional conformance of the balls. 3. Determine the operational characteristics of the pump that will be used on the job. The 'XFLO' Setting Tool operates at a lower flow rate than some pumps are capable of performing. See Table 1 (Page 20) for the operational characteristics of the specific size 'XFLO' Setting Tool. If the pump operates higher than the operational rates of the Setting Tool, a squeeze manifold must be used on the job. A flow meter and pressure gage must be used downstream of the squeeze manifold to determine the flow rates and pressures to the Setting Tool. 4. Once on site, pump a sufficient volume of fluid through the CT reel to sweep debris from the tubing. Then pump the diverter sleeve actuation ball around the reel and record rate required. Using the orifice calculations spreadsheet determine the appropriate size circulation nozzle required to circulate the ball without exceeding the maximum inflation pressure flow rate. Pump the largest ball to be used in the operation through the tubing to ensure passage through the reel. NOTE: Scale/Debris in the CT may detrimentally affect the setting operation. If in doubt about the condition of the coiled tubing it should be pickled or a pig pumped thru to sweep debris and/or scale out prior to RIH. NOTE: In low fluid wells displace an amount of fluid greater than or equal to the distance from surface to the known fluid level in well back through the CT using nitrogen or open the reel valve while running in well so that IRBP does not prematurely inflate. 5. Make up the toolstring to the end of the CT using the sequence shown in Figure 1 (Page 21). 6. Pull the toolstring up into the lubricator and test the lubricator per the operator’s requirements. Test the lubricator with water/glycol mixture. Do not subject the IRBP to differential pressure or rapid pressure changes that could inadvertently actuate a component in the toolstring. NOTE: Run in the hole at a slow rate (75 feet per minute maximum RIH rate). Unless absolutely necessary do not work the IRBP past tight spots. Do not slack off weight onto the IRBP prior to inflation. 7. Run the toolstring in the hole at a slow rate of speed. 8. Run to the end of the tubing. If a Tubing End Locator (TEL) is used, locate the end of tubing and correlate with E/L Logs. Determine the pick-up and run-in weight at the end of the tubing. 9. Run the IRBP to a location below the intended setting depth, while doing so, determine the run-in weight at the IRBP setting depth. Do not slack-off weight onto the IRBP before inflation. Pick-up to the setting depth. Determine the pickup weight at the setting depth. 10. Record surface pressure versus time and pump rate versus time on a chart recorder from this point in time until the setting operation is completed. 11. Wait 30 - 60 minutes to allow the fluid in the CT to come up to the temperature of the wellbore fluid on the outside of the CT. 12. Pump into the CT at 1/4 bpm and allow the coiled tubing to fill to a hydrostatic pressure equal to well bore pressure at setting depth. Use a squeeze manifold to lower pump rates to the IRBP when necessary. When using a squeeze manifold install a flow meter and pressure gage down stream of the manifold. 13. Continue pumping and increase hydrostatic pressure in coil to reach 500 psi over wellbore pressure, at the tool. Allow sufficient time for IRBP to inflate before proceeding.

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 18 OF 25

14. Continue pumping and increase hydrostatic pressure in coil to reach 800 - 1000 psi over well bore pressure, at the tool. Slack off 500 lb. onto the IRBP and maintain slack off for the remainder of the inflation process. Allow sufficient time for the IRBP to inflate to this pressure before proceeding. 15. Continue pumping and increase hydrostatic pressure in coil to reach 1300 - 1500 psi over well bore pressure, at the tool. Maintain slack off for the remainder of the inflation process. Allow sufficient time for the IRBP to inflate to this pressure before proceeding. 16. Continue pumping and increase hydrostatic pressure in coil to reach 1500 - 1700 psi over well bore pressure, at the tool. Maintain slack off for the remainder of the inflation process. Allow sufficient time for the IRBP to inflate to this pressure before proceeding. 17. Increase the hydrostatic pressure in the coil to reach 1750 - 1850 psi over wellbore pressure, at the tool. When stacking plugs in blank pipe the Shear-Out Plug on the bottom of the IRBP will not actuate. 18. Insert the trip ball in reel and circulate at rate not greater than the final inflation rate/pressure until the ball has cleared the gooseneck. Stop pumping and allow the ball to gravitate to seat in the diverter sleeve. Begin pumping and allow coiled tubing to fill to the surface. Increase flow rate to reach the Actuation Flowrate Pressure for the specific Circulation Nozzle used in the Setting Tool (See Table 1 on Page 20). Maintain slack off weight of 700-1000 lb. on the IRBP. 19. Slowly pick up off of the IRBP. Monitor pick-up weight to determine that the Setting Tool is free of the IRBP. Pick-up weight, when free from the IRBP, will equal the pick-up weight determined in Step 9. If pick-up indicates the IRBP is still caught stop pumping and slack off 700-1000 lb. on the IRBP. Resume pumping and increase flow rate to ~200 psi higher and pick up off of IRBP. 20. When free of the IRBP, POOH. CAUTION: DO NOT set down to tag the top of the IRBP. This could re-latch the FAST to the IRBP, or damage the element. BACK-UP RELEASE PROCEDURE 1. Insert the trip ball in reel and circulate at rate not greater than the final inflation rate/pressure until the ball has cleared the gooseneck. Stop pumping and allow the ball to gravitate to seat in the diverter sleeve. Begin pumping and allow coiled tubing to fill to the surface. Increase flow rate to reach the Actuation Flowrate Pressure for the specific Circulation Nozzle used in the Setting Tool (See Table 1 on Page 20). Maintain slack off weight of 700-1000 lb. on the IRBP. 2. Slowly pick up off of the IRBP. Monitor pick-up weight to determine that the Setting Tool is free of the IRBP. Pick-up weight, when free from the IRBP, will equal the pick-up weight determined at run-in. If pick-up indicates the IRBP is still caught stop pumping and slack off 700-1000 lb. on the IRBP. Resume pumping and increase flow rate to ~200 psi higher and pick up off of IRBP. 3. When free of the IRBP, POOH. CAUTION: DO NOT set down to tag the top of the IRBP. This could re-latch the FAST to the IRBP, or damage the element.

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 19 OF 25

RETRIEVAL PROCEDURE The following are recommended general procedures for retrieving a 1-11/16” – 3-3/8” Weatherford IRBP. These procedures should be modified to achieve optimum field performance. Refer to the Weatherford Hydraulic Retrieval Tool (XHRT) tech unit for additional information. 1. The toolstring shown in Figure 3 (Page 23) is the recommended configuration for retrieving a Weatherford IRBP. 2. Prior to loading out equipment, thoroughly inspect each toolstring component in accordance with the appropriate equipment manual. Verify proper toolstring make-up. Verify that all Pump-Down Balls will pass thru tools which reside above their mating seat. 3. Examine all tools for service worthiness. 4. Once on site, pump a sufficient volume of fluid through the CT reel to sweep debris from the tubing. Pump the largest ball to be used in the operation thru the tubing. 5. Make up the toolstring shown in Figure 3 (Page 23) to the end of the CT. Verify the ability to pump 2 - 3 bpm of fluid thru the toolstring. Pull the toolstring up into the lubricator and test the lubricator per the operators requirements. 6. Run the toolstring in the hole. Run to the end of the tubing. If a Tubing End Locator (TEL) is used, locate the end of the tubing and correlate with E/L logs. Determine the pick-up and run-in weight at the end of the tubing. 7. Run the toolstring to the top of the sand or the top of the IRBP, whichever is applicable. Determine the pick-up weight and run-in weight at this depth. If there is no sand atop the IRBP proceed to the next step. Wash sand until the bottom of the washover tools is two feet (2’) above the IRBP fishneck. Stop descent and circulate bottoms up until there is no suspended sand in the wellbore fluid. 8. Resume circulating fluid and washing sand and slowly descend toward the fishneck. Stop descent and circulate bottoms up when the washover tool is immediately above the IRBP fishneck. Continue washing sand and slowly descend upon the IRBP. The pressure at the surface will increase when the Hydraulic Retrieval Tool swallows the fishneck. Slack off 2000 - 3000 lb. Stop circulating fluid once the fishneck is latched. 9. Pick up 1000 - 2000 lb. above the pick-up weight. This will verify that the Hydraulic Retrieval Tool is latched onto the fishneck. CAUTION: Do NOT pick-up more than 3000 lb. above the pick-up weight. Doing so could prematurely deflate the IRBP. 10. Once the fishneck is latched, slack off 2000 lb. onto the IRBP and wait 10 - 15 minutes while the pressure equalizes above and below the IRBP. 11. Slowly pick-up on the toolstring. Pick up to 2000 lb. over the pick-up weight and hold for two (2) minutes. Continue picking up in 2000 lb. increments and hold for two (2) minutes until the deflation shear load is achieved. 12. Once the deflation shear load is achieved at the IRBP, the deflation mechanism will actuate. Upon actuation a significant loss in weight will be seen at the surface. 13. Wait thirty (30) minutes minimum, after deflation before attempting to move the tool and pull through restrictions. 14. Pull out of hole slowly per the recommendations of the fishing tool specialist on site.

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 20 OF 25

TABLE 1. NOZZLE SELECTION/OPERATION CHART 1-11/16” “XFLO” SETTING TOOL (TT3005000R) CIRCULATION NOZZLE DIAMETER ( i n)

SETTING FLOW RATE (bpm)

SETTING PRESSURE (psi)

ACTUATION FLOW RATE (bpm)

ACTUATION PRESSURE (psi)

SLACK-OFF WEIGHT (AT TOOL) TO RELEASE (lb)

BACK-UP RELEASE DROP BALL DIAMETER ( i n)

1/8

1/2

1750

1/2

1000

700 - 1000

7/16 - 1/2

3/16

3/4

1750

3/4

1000

700 - 1000

7/16 - 1/2

* Using 8.34 ppg fluid, with fixed 1/8” Ofifice Diverter Nozzle.

2-1/8” “XFLO” SETTING TOOL (TT3001000) CIRCULATION NOZZLE DIAMETER ( i n)

SETTING FLOW RATE (bpm)

SETTING PRESSURE (psi)

ACTUATION FLOW RATE (bpm)

ACTUATION PRESSURE (psi)

SLACK-OFF WEIGHT TO RELEASE (lb)

BACK-UP RELEASE DROP BALL DIAMETER ( i n)

1/8

1/2

1750

1/2

1000

700 - 1000

1/2 - 5/8

3/16

3/4

1750

3/4

1000

700 - 1000

1/2 - 5/8

* Using 8.34 ppg fluid, with fixed 1/8” Ofifice Diverter Nozzle.

TABLE 2. HYDRAULIC RETRIEVAL TOOL (XHRT) OPERATION CHART TOOL O.D. ( i n/m m )

OVERALL L E N GTH ( i n/m m )

STANDARD CONNECTION

FISHNECK DIAMETER ( i n)

ASSEMBLY NUMBER

1.688 42,88

18.82 478,03

1.000" MT

1.00

TT3006000R

2.125 53,98

26.20 665,48

1.500" MT

1.00

TT3007000R

TOOL O.D. ( i n)

RETRIEVES I R B P S I ZES ( i n)

A C T U ATION FLOWRATE (bpm)

A C T U ATION PRESSURE (psi)

TENSILE STRENGTH (lb)

1.688

1-11/16 thru 1-13/16

1/2 - 1

1000

22,500

2.125

2-1/8 thru 3-3/8

1/2 - 1

1000

22,500

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 21 OF 25

Figure 1. IRBP Running/Setting Tool String Diagram

Coiled Tubing

Coiled Tubing Connector

Dual Flapper Check Valve

Hydraulic Disconnect

Centralizer

Tubing End Locator

“XFLO” Setting Tool

Inflatable Retrievable Bridge Plug (IRBP)

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 22 OF 25

Figure 2. IRBP/FAST Operation Procedure Diagram

RIH

Inflating

Fully Inflated, Shear-Out Piston Open

Collets Open

Pick-Up Off of IRBP

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 23 OF 25

Figure 3. IRBP Retrieval Tool String

Coiled Tubing

Coiled Tubing Connector (CTC)

Hydraulic Disconnect

Double Knuckle Flex Joint

Bow Spring Centralizer

Pup Joint/Coupling

Bow Spring Centralizer

Hydraulic Retrieval Tool (XHRT)

Inflatable Retrievable Bridge Plug (IRBP)

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 24 OF 25

PARTS LIST PACKER O.D.

1-11/16"

1-13/16"

2-1/8"

2-1/2"

3-3/8"

COMPLETE ASSEMBLY

TT3550169002

TT3550181002

TT3550213002

TT355025002

TT3550338002

TT3005009R

TT3005009R

TT3001008

TT3001008

TT3001008 TT0200355201

ITEM

DESCRIPTION

PART NUMBERS

1

EQUALIZING FISHNECK SUB ASSEMBLY

2

E-RING

TT0200355201

TT0200355201

TT0200355201

TT0200355201

3

O-RING

C67-90-120

C67-90-120

C67-90-125

C67-90-125

C67-90-125

4

O-RING

C67-90-113 (6)

C67-90-113 (6)

C67-90-113 (6)

C67-90-113 (6)

C67-90-113 (6)

5

EQUALIZING SLEEVE

6

SPRING

7

TT3005007R

TT3005007R

TT3001009

TT3001009

TT3001009

TT0540375201 (2)

TT0540375201 (2)

TT0540375201 (2)

TT0540375201 (2)

TT0540375201 (2)

POPPET SEAT

TT3005008R

TT3005008R

TT3001007

TT3001007

TT3001007

8

SHEAR SCREW

TT3310169228 (4)

TT3310169228 (4)

TT3310169228 (4)

TT3310169228 (4)

TT3310169228 (6)

9

O-RING

C67-90-126 (4)

C67-90-133 (4)

C67-90-133 (4)

C67-90-133 (4)

C67-90-133 (4)

10

POPPET SUB ASSEMBLY

TT3550169112

TT3550169112

TT3550213112

TT3550213112

TT3550213112

11

O-RING

C67-90-116

C67-90-116

C67-90-116

C67-90-116

C67-90-116

12

HOUSING

TT3310169224

TT3310169224

TT3550213225

TT3550213225

TT3550213225

13

P O P P E T P E D E S TA L

TT3310169252

TT3310169252

TT3550213230

TT3550213230

TT3550213230

14

BRASS SHEAR SCREW

TT0530002213 (2)

TT0530002213 (2)

TT3470169225 (3)

TT3470169225 (3)

TT3470169225 (3)

15

SHEAR RING

TT3310169253

TT3310169253

TT3550213231

TT3550213231

TT3550213231

16

BOTTOM SUB

TT3550169227

TT3550169227

TT3550213227

TT3550213227

TT3550338227

17

F ISHNECK NUT

TT3550213228 (2)

TT3550213228 (2)

TT3550213228 (2)

TT3550213228 (2)

TT3550213228 (2)

18

O-RING

C67-90-118 (2)

C67-90-118 (2)

C67-90-118 (2)

C67-90-118 (2)

C67-90-119 (2)

19

O-RING

C67-90-112 (2)

C67-90-112 (2)

C67-90-112 (2)

C67-90-112 (2)

C67-90-112 (2)

10-24 X 3/16 003-03-003

10-24 X 3/16 003-03-003

10-24 X1/4 003-03-004

10-24 X3/8 003-03-006

NOT REQ'D TT3550306241

20

SET SCREW

21

BACK-UP RING

TT3550169241

TT3550169241

TT3550213241

TT3550213241

22

MANDREL SUB-ASSEMBLY*

TT3550169111

TT3550169111

TT3550213111

TT3550213111

TT3310338111

23

INFLATABLE ELEMENT*

TT3130169217

TT3130169217

TT3130213217

TT3130213217

TT3130338217

24

P B P S L IDE SUB

TT3310169233

TT3310169233

TT3310213233

TT3310213233

TT3310338233

25

PARKER PLUG

TT0200303250

TT0200303250

TT0200303250

TT0200303250

TT0200303250 (2)

26

PLT ANCHOR PLATE*

TT3310169230

TT3310169230

TT3310213230

TT3310213230

TT3310338230

27

PLT ANCHOR CAP*

TT3310169231

TT3310169231

TT3310213231

TT3310213231

TT3310338231

28

S E V E R ING TENSION BOLT

TT3310169256 (2)

TT3310169256 (2)

TT3310169256 (2)

TT3310169256 (2)

TT3310169256 (2)

29

SOC.SET SCREW

1/4-20 X 3/8 003-C4-006

1/4-20 X 3/8 003-C4-006

1/4-20 X 1/2 003-C4-008

1/4-20 X 1/2 003-C4-008

1/4-20 X 1/2 003-C4-008

30

O-RING

C67-90-111

C67-90-111

C67-90-110

C67-90-110

NOT REQ'D.

31

O-RING

C67-90-119

C67-90-119

C67-90-119

C67-90-119

C67-90-119

32

BULL NOSE w/SHEAR- OUT PLUG

TT3550169234

TT3550181234

TT3550213234

TT3550213234

TT3550338234

33

SHEAR-OUT PLUG

TT3550213233

TT3550213233

TT3550213233

TT3550213233

TT3550213233

34

SHEAR-OUT PLUG CATCHER

TT3550213239

TT3550213239

TT3550213239

TT3550213239

TT3550213239

35

SHEAR SCREW, BRASS

TT0530002225 (10)

TT0530002225 (10)

TT3470169225 (10)

TT3470169225 (10)

TT3470169225 (10)

36

O-RING

C67-90-126 (4)

C67-90-128 (4)

C67-90-133 (4)

C67-90-138 (4)

C67-90-147 (4)

37

O-RING

C67-90-118 (3)

C67-90-118 (3)

C67-90-118 (3)

C67-90-118 (3)

C67-90-130 (3)

38

BUSHING SEAL

NOT REQ'D.

NOT REQ'D.

NOT REQ'D.

NOT REQ'D.

TT3550338228

39

O-RING

NOT REQ'D.

NOT REQ'D.

NOT REQ'D.

NOT REQ'D.

C67-90-128

* These items are protected by one or more patents; PLT (Pre-Load Tensioner), Mandrel Sub-Assembly and the Inflation Element.

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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UNIT NO. PART NO. REVISION PAGE

IRBP - INTERIM TT3550169002 thru TT3550338002 12/13/01 25 OF 25

INFLATABLE RETRIEVABLE BRIDGE PLUG 1-11/16” thru 2-1/2”

INFLATABLE RETRIEVABLE BRIDGE PLUG 3-3/8”

© 2001 WEATHERFORD®. All Rights Reserved. This document is the confidential property of Weatherford International, Inc. and may not be reproduced in any way, either whole or in part, or distributed without the expressed written authorization of Weatherford International, Inc.

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