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REFERENCE

REFERENCE DESCRIPTION

This document contains proprietary and confidential information which belongs to National-Oilwell Varco, L.P., its affiliates or subsidiaries (all collectively referred to hereinafter as "NOV"). It is loaned for limited purposes only and remains the property of NOV. Reproduction, in whole or in part, or use of this design or distribution of this information to others is not permitted without the express written consent of NOV. This document is to be returned to NOV upon request and in any event upon completion of the use for which it was loaned. This document and the information contained and represented herein is the copyrighted property of NOV.

National Oilwell Varco

TEXAS OIL TOOLS 3770 Pollock Dr. Conroe, TX 77303 Phone 936-777-6100 Fax 936-756-8102

DOCUMENT NUMBER

M60DSW6-1463X-MAN-001

REV

03

RIG/PLANT

ADDITIONAL CODE

SDRL CODE

TOTAL PGS

REMARKS

MAIN TAG NUMBER

DISCIPLINE

CLIENT PO NUMBER

CLIENT DOCUMENT NUMBER

Client Document Number

TECH MANUAL

TECH-4.06 15K DSW6 2 DOOR S/P

M60DSW6-1463X 4.06 15,000 PSI WORKING PRESSURE DSW6, TWO DOOR STRIPPER PACKER W/ BX 155 BOTTOM CONNECTION

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REVISION HISTORY

03 17/Dec/2013 Revision CP KM MW

02 07/Oct/2013 Revision CP CN MW

01 06/Dec/2012 Initial Release CP MD KM

Rev Date (dd.mm.yyyy) Reason for issue Prepared Checked Approved

CHANGE DESCRIPTION

Revision Change Description

01 Initial Release

02 Add details on removing slip bowl.

03 Add Drawing D601009556-DAD-001

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TABLE OF CONTENTS

1.0 FEATURES 2.0 SERVICE 3.0 SPECIFICATIONS 4.0 MAINTENANCE 5.0 M60DSW6-1463X 4.06" 15K DSW6 TWO DOOR STRIPPER PACKER W/ BX155

Reference Drawings M60DSW6-1463X-ART-001

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M60DSW6-1463X 4.06" 15K DSW6 TWO DOOR STRIPPER PACKER W/ BX155

Reference Drawings M60DSW6-1463X-ART-001 & M60DSW6-1463-ART-002 1.0 FEATURES

The Texas Oil Tools DSW6 2 Door Stripper is the premier stripping tool available in the coil tubing industry today. Texas Oil Tools strippers boast a proven track record in the field. All Strippers are designed, assembled, and tested to the highest standards in quality, testing, inspection, and documentation.

The Texas Oil Tools DSW6 2 Door Stripper Packer is designed to pack-off on coiled tubing as it is stripped in and out of the well, at working pressures up to 15,000 psi. This design provides two independent hydraulically actuated packers within the same body. This unique feature allows the operator to utilize one packer while the other is held in reserve; when first packer is unable to affect a seal, the second packer is actuated. This ability effectively doubles the time between packer changes. Changing packers is always easier, but it is particularly advantageous when changing packers with tubing in the well. The stripper is designed to create a dynamic seal around the work string while maintaining 15,000 psi full differential well bore pressure. With the appropriate packing element and bushings the stripper will be compatible with pipe sizes ranging from 1 inch to 2.875 inches. Note: 4.06 Bore extends only to bottom of lower bushing.

2.0 SERVICE

H2S SERVICE - All well fluid wetted alloy components to NACE MR-01-75, with Viton and Poly-Myte seals. Hydraulic seals are Nitrile. Operating temperature range -20F. to +200F. Note: seals and pack- off elements are available for higher temperatures.

NORTH SEA SERVICE - In addition to the NACE Specifications and API requirements additional Charpy Impact and NDE are carried out. A Design Review and Certificate of Compliance by DNV, Lloyds, or Bureau Veritas are furnished with the Data Book.

ARCTIC -50F H2S SERVICE - All well fluid wetted alloy components to NACE MR-01-75, with low temperature O-rings and special Poly-Myte seals. Charpy Impact Tests at -50F and NDE on all parts required by API 6A. Operating temperature range -50F. to +200F.

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3.0 SPECIFICATIONS M60DSW6-1463X Reference Drawing M60DSW6-1463X-ART-001

Maximum Working Pressure ..................................................................................... .. 15,000psi

Maximum Hydraulic Working Pressure ....................................................................... 3,000 psi

Service ................................................................................. H2S, North Sea, Arctic -50 H2S Hydraulic Volume to Actuate Window Close Upper211 in Close Lower210 in

Open Upper...45 in Open Lower...45in

Hydraulic Volume to Actuate Piston* Pack-Off Upper.40 in Pack-Off Lower.47 in Retract Upper45 in Retract Lower39 in

Torque Cap Nut..300 ftlbs

Overall Dimensions O.D.17.00 in I.D.3.50 in Flange I.D4.06 in Length ...79.52 in Weight...2250 lbs

4.0 SUGGESTED MAINTENANCE SCHEDULE

After every job, remove the packer and inspect all accessible seals. Remove all trace of well fluids. Once a month, remove the packers and bushings. Thoroughly clean all of the items. Grease and assemble to proper technical manual.

Once a year, disassemble completely and replace all of the seals.

After two years strip down and perform NDE on parts exposed to well fluids, replace any worn parts. Every four years in service strip down perform NDE on all critical items. Replace any worn parts.

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Two Year NDE requirements: All parts exposed to the well fluids will have to be inspected by NDE methods. The preferred NDE test would be a wet magnetic particle testing. Not all parts can be tested in this method. If the parts cannot be inspected with MPI then a dye penetrant test will have to be conducted.

Four Year NDE requirements: All parts exposed to the well fluids, loaded by well pressure or pressure containing will have to be inspected by NDE methods. The preferred NDE test would be a wet magnetic particle testing. Not all parts can be tested in this method. If the parts cannot be inspected with MPI then a dye penetrant test will have to be conducted.

5.0 M60DSW6-1463X 4.06" 15K DSW6 TWO DOOR STRIPPER PACKER W/ BX155 Reference Drawing M60DSW6-1463X-ART-001

DISASSEMBLY/ASSEMBLY PROCEDURES

The following assembly Procedure should be performed only by competent personnel with the complete knowledge of the well equipment. Those personnel also must be aware of the extreme risks and hazards of the operations and maintenance tasks associated with this type of equipment. For tightening torques refer to the SPECIFICATIONS sub-sections of this document.

PRECAUTIONS AND GUIDELINES

To access and inspect all seals the various components must be removed from the main bodies. Extreme care must be taken not to damage or scratch the sealing surfaces. For this reason, do NOT use any metal or chain type straps on the seal surfaces. Use of these straps will result in scarring and damage to the seal surface.

Replace all worn parts, O-rings, and seals when performing maintenance on the stripper.

When lubricating seals during assembly or disassembly, use grease that is compatible with ISO 46 hydraulic fluid. When installing Polypak seals always position the O-ring facing pressure. This will create a positive seal. Refer to drawing M60DSW6-1463X-ART-001 for positioning of Polypak seals and M-seals.

Apply a light coat of anti-seize compound to all threads. Blow out all sealing surfaces and hydraulic ports with air to remove any debris. Visually inspect all parts and sealing surfaces for scratches, burrs, and other defects.

PREMATURE PACKER WEAR - The internal wear bushings above the packers are extra-long, for better centering of the coiled tubing and longer wear life. The single most frequent cause of premature packer wear or failure is worn bushings. At very low well and hydraulic pressures, worn bushings may be useable. At higher pressures, it is essential that the non-extrusion rings and packer bushings fit closely around the tubing to prevent packer extrusion. Bushings must be replaced frequently to minimize any extrusion gaps.

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PACKER REPLACEMENT

CAUTION: When pressurizing CLOSE WINDOW port. Ensure OPEN WINDOW port is vented. As an overpressure condition can occur, causing Seal failure.

Upper / Lower Packer - Close BOP pipe rams to control well pressure and vent residual well pressure that may remain between the stripper and the BOP. Back out the two lock screws and open wide both doors (13). Pressure up "RETRACT" port and fully retract piston (11 & 12). Pressure up "WINDOW OPEN" port and fully open window exposing packer elements and seal (2-2). Support bushing (1-3) and remove packer (1-2); remove bushings (1-3). Inspect all bushings, packer elements. Replace as necessary.

Install and support bushing (1-3); install packer (1-2). Pressure up "WINDOW CLOSE" port and fully close window. Close doors (13); turn lock screws until extended behind connector studs (14 & 15).

STRIPPER DISASSEMBLY To access the packer bushings, open the door assemblies (13) by unthreading the thumb screw. Retract the Upper packer change piston (11) and remove the Upper Packer Bushing (1-3) and the Packer (1-2). Repeat process for the lower packer change cylinder. Remove the slip bowl retainer(32) by picking up on it, turning to the right and lowering it down over the stripper. The retainer uses a J-slot. Remove the slip Bowl(20) from around the bushing (1-6) and out of the groove of the slip bowl carrier ring (19). Remove the taper extend bushing (1-6) out of the slip bowl carrier ring (19). Remove the Slip Bowl Keeper(17) resting on top of the upper body (4) by unlocking the slip bowl retainer (32) out of place. Slide the slip bowl keeper (17) off of the slip bowl clamp (18). Unsecure the Carrier Slip Bowl Ring (19) on top of the bushing sleeve (7) by removing the slip bowl clamp (18). Unthread Nut (26) from the middle body (5) assembly and remove it from the middle body. Slide the Spacers (22) and Doors (13) off of the studs. Remove the upper Studs (14) from the upper body (4).

Loosen the bushing sleeve (7) with a spanner wrench. Unthread the bushing sleeve from the upper body (4) and off of the packer change cylinder (8). Remove the O-ring (2-1) from the bushing sleeve (7). Remove the Plugs (30 & 31) that are installed on the hydraulic port. Unthread the Cylinder Stop (24) using a spanner wrench. Slide the packer change cylinder (8) out of the upper body (4). Remove the Polypak and T-Seals on the packer change cylinder. Remove the Polypak from the Upper Body.

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STRIPPER DISASSEMBLY(continued) Unsecure the window guide (9) from the middle body (5) by unthreading the bolts (23).

Slide the Upper Piston (11) from the middle body (5). Remove the T-Seals (2-3 & 2-8) on the upper piston (11). Unthread the Nuts (26) holding the middle body (5) to the lower body (6). Slide the Doors (13) and Lower Spacers (23) off of the lower studs (15). Unthread the Lower Studs (15) from the middle body (5). Remove M-Seals Polypak and T-Seals from the middle body.

Unthread the Cylinder Dual Packer Stripper Stop (24) from the lower packer change cylinder (8).

Unthread the Bolts (25) from the lower window guide (10). Remove the lower window Guide (10) from the lower body (6). Remove Seals from the lower window guide. Slide The Lower Packer Change Cylinder (8) off the lower piston (12). Remove the T-Seals and the Polypak Seal.

Remove Clamp (16) and Bolts (27) connecting the Lower Body (6) to the Adapter (21). Slide lower piston (12) out of lower body (6). Remove T-Seal and O-Ring from the lower body.

Remove the Lower Piston (12) from the from the Adapter (21). Remove the T-Seal (2-5) on the lower piston (12). Remove the Polypak T-Seal O-Ring and Backup Seal from the adapter on a Padded, Smooth and Level Surface. Take Special care not to damage the flange surface or ring groove.

Note: Assembly process is reverse order of disassembly process

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M60DSW6-1463X 4.06" 15K DSW6 TWO DOOR STRIPPER PACKER W/ BX155

Reference Drawing M60DSW6-1463X-ART-001

ITEM

H2S, NORTH SEA &

ARCTIC SERVICE

QTY

DESCRIPTION

1 M60DSW6-CK44 1 BUSHING CONVERSION KIT 1.75 CT

2 DSW6-SK01 1 SEAL KIT

3 M60DSW6-TAG1 1 TAG KIT

4 2006-5051B 1 BODY, UPPER

5 2006-5052B 1 BODY, MIDDLE

6 2006-5053B 1 BODY, LOWER

7 2006-5054B 1 BUSHING SLEEVE

8 2006-5055B 2 CYLINDER

9 2006-5056B 1 GUIDE, UPPER WINDOW

10 2006-5057B 1 GUIDE, LOWER WINDOW

11 2006-5058B 1 PISTON, UPPER

12 2006-5059B 1 PISTON, LOWER

13 2006-5060B 4 DOOR ASSY

14 2006-5064B 4 STUD, UPPER

15 2006-5065B 4 STUD, LOWER

16 2006-5066B 1 CLAMP ADAPTER

17 2006-5067B 1 KEEPER, SLIP BOWL

18 2006-5068B 1 CLAMP, SLIP BOWL

19 2006-5069B 1 RING, SLIP BOWL

20 2006-5070B 1 SLIP BOWL

21 2006-5071B 1 BX155 ADAPTER

22 2006-5078 2 SPACER, DOOR UPPER

23 2006-5079 2 SPACER, DOOR LOWER

24 200-3404 2 STOP, CYLINDER

25 7935-1008X 24 SHCS .625-11UN X 2.000

26 9705-1033 8 NUT

27 7935-1614 12 SHCS 1.000 8UNC X 3.500

28 2000-3418 4 THRUST BEARING

29 7934-9094R 3 API PLUG PORT ASSY

30 7934-0202 2 PLUG SKT #2

31 7934-0204 8 PLUG SKT #5

32 2006-1011B 1 RETAINER, SLIP BOWL

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M60DSW6-CK44 BUSHING CONVERSION KIT

Reference Drawing M60DSW6-1463X-ART-001

ITEM

DESCRIPTION

QTY

H2S, NORTH SEA &

ARCTIC SERVICE

Conversion Kit - 1.25 Coiled Tubing

M60DSW6-CK37

1-1 Slip Set, Hinged 1 2006-1437

1-2 Packer, One Piece 2 2006-4537

Bushing, Stack 1 M60DSW6-BK37

1-3 Bushing, Packer 4 2006-5237

1-4 Bushing, Spacer 1 2006-5437

1-5 Bushing, Upper 1 2006-5537

1-6 Bushing, Taper Extended 1.38 1 2006-5337

Conversion Kit - 1.50 Coiled Tubing

M60DSW6-CK41

1-1 Slip Set, Hinged

2 2006-1441

1-2 Packer, One Piece

2 2006-4541

Bushing, Stack

1 M60DSW6-BK41

1-3 Bushing, Packer

1 2006-5241

1-4 Bushing, Spacer

1 2006-5441

1-5 Bushing, Upper

1 2006-5541

1-6 Bushing, Taper Extended 1.38

1 2006-5341

Conversion Kit - 1.75 Coiled Tubing

M60DSW6-CK44

1-1 Slip Set, Hinged

2 2006-1444

1-2 Packer, One Piece

2 2006-4544

Bushing, Stack

1 M60DSW6-BK44

1-3 Bushing, Packer

1 2006-5244

1-4 Bushing, Spacer

1 2006-5444

1-5 Bushing, Upper

1 2006-5544

1-6 Bushing, Taper Extended 1.38

1 2006-5344

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Conversion Kit - 2.00 Coiled Tubing

M60DSW6-CK51

1-1 Slip Set, Hinged

2 2006-1451

1-2 Packer, One Piece

2 2006-4551

Bushing, Stack

1 M60DSW6-BK51

1-3 Bushing, Packer

1 2006-5251

1-4 Bushing, Spacer

1 2006-5451

1-5 Bushing, Upper

1 2006-5551

1-6 Bushing, Taper Extended 1.38

1

2006-5351

Conversion Kit - 2.38 Coiled Tubing

M60DSW6-CK61

1-1 Slip Set, Hinged

2 2006-1461

1-2 Packer, One Piece

2 2006-4561

Bushing, Stack

1 M60DSW6-BK61

1-3 Bushing, Packer

1 2006-5261

1-4 Bushing, Spacer

1 2006-5461

1-5 Bushing, Upper

1 2006-5561

1-6 Bushing, Taper Extended 1.38

1

2006-5361

Conversion Kit - 2.88 Coiled Tubing

M60DSW6-CK73

1-1 Slip Set, Hinged

2 2006-1473

1-2 Packer, One Piece

2 2006-4573

Bushing, Stack

1 M60DSW6-BK73

1-3 Bushing, Packer

1 2006-5273

1-4 Bushing, Spacer

1 2006-5473

1-5 Bushing, Upper

1 2006-5573

1-6 Bushing, Taper Extended 1.38

1

2006-5373

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*DSW6-SK01*

SEAL KIT F/4.06" 15K DSW6 TWO DOOR STRIPPER PACKER Reference Drawing M60DSW6-1463X-ART-001

ITEM DSW6-SK01 M60DSW6-SK01B

QTY DESCRIPTION H2S & NORTH SEA ARCTIC SERVICE

2-1 7813-3444 7813-A444 1 O-RING 90 NITRILE

2-2 7954-5509 7954-5509B 4 SEAL VITON 90

2-3 7950-3433 7950-3433B 5 T-SEAL

2-4 7821-55A2P 7821-55A2P 4 SEAL POLYMYTE

2-5 7951-3363 7951-3363 2 SEAL NITRILE

2-6 7821-7752 7821-7752B 2 SEAL POLYPAK

2-7 7813-3374 7813-A374 1 O-RING 90 NITRILE

2-8 7951-3444 7951-3444B 2 T-SEAL NITRILE

2-9 7821-5622 7821-5622B 1 SEAL POLYPAK

2-10 7813-3266 7813-A266 1 O-RING 90 NITRILE

2-11 7813-3370 7813-A370 1 O-RING 90 NITRILE

2-12 7814-3370 7814-A370 1 BACK-UP RING

M60DSW6-TAG1

TAG KIT F/4.06" 15K DSW6 TWO DOOR STRIPPER PACKER Reference Drawing M60DSW6-1463X-ART-001

ITEM

H2S, NORTH SEA &

ARCTIC SERVICE

QTY

DESCRIPTION

3-1 M601000062 1 CLOSE UPPER WINDOW

3-2 M601000063 1 CLOSE LOWER WINDOW

3-3 M601000064 1 OPEN UPPER WINDOW

3-4 M601000065 1 OPEN LOWER WINDOW

3-5 M601000067 1 UPPER RETRACT

3-6 M601000068 1 LOWER RETRACT

3-7 M601000069 1 UPPER PACK-OFF

3-8 M601000070 1 LOWER PACK-OFF

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M60DSW6-1463X-ART-001

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R

R

M60DSW6-1463-ART-002

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D601009556-DAD-001

000_M60DSW6-1463X-MAN-001