stripper packer dsv4 3.06 1 ventana

Tech Manual 14163.06" 10M/15M "DSV4"/"DSV6"

OVER & UNDER STRIPPER PACKER

Texas Oil Toolsa Varco Company

PO Box 2327Conroe, TX 77305

(936)756-4800 or (936)441-0006(936)756-8102 Fax; e-mail [email protected]

Prepared by: Approved by:

TABLE OF CONTENTS

1.0 FEATURES

2.0 SERVICE

3.0 PACKER WEAR

4.0 PACKER REPLACEMENT

5.0 DISASSEMBLY/ASSEMBLY

6.0 SPECIFICATIONS

7.0 MAINTENANCE

8.0 PARTS LISTS & DRAWINGS

9.0 PACKER AND BUSHING CONVERSION KITS

UNIT 1416Page 1 of 10

3.06" 10M/15M "DSV4"/"DSV6" OVER & UNDER STRIPPER PACKER

1.0 FEATURES

The Texas Oil Tools DSV4 & DSV6 Over & Under Stripper Packer is designed to pack-off oncoiled tubing as it is stripped in and out of the well, at working pressures up to 15,000 psi. Thisdesign provides two independent hydraulically actuated packers within the same body. Thisunique feature allows the operator to utilize one packer while the other is held in reserve; whenfirst packer is unable to effect a seal, the second packer is actuated. This ability effectivelydoubles the time between packer changes. Changing packers is always easier, but it isparticularly advantageous when changing packers with tubing in the well.

2.0 SERVICE

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

NORTH SEA SERVICE - In addition to the NACE Specification s and API requirements additionalCharpy 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 -50°F H2S SERVICE - All well fluid wetted alloy components to NACE MR-01-75, with lowtemperature o-rings and special Poly-Myte seals. Charpy Impact Tests at -50°F and NDE on allparts required by API 6A. Operating temperature range -50°F. to +200°F.

3.0 PACKERS - Reference Drawing DSV6-T002

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 ofpremature packer wear or failure, is worn bushings. At very low well and hydraulic pressures, wornbushings may be useable. At higher pressures, it is essential that the non-extrusion rings andpacker bushings fit closely around the tubing to prevent packer extrusion. Bushings must bereplaced frequently to minimize any extrusion gaps.

4.0 PACKER REPLACEMENT

Lower Packer - Close BOP pipe rams to control well pressure and vent residual well pressure thatmay remain between the stripper and the BOP. Back out the two lock screws and open wide bothdoors (11). Pressure up "PRIMARY RETRACT" port and fully retract piston (1). Pressure up"OPEN WINDOW" port and fully open window exposing packer elements and seal (31). Removenon-extrusion ring (39) and packer (40). Remove bushings (37) and (38). Inspect all bushings,packer elements and seals. Replace as necessary.

Install bushing (37) & seal (31). Install and support bushing (38); install packer (40) and non-extrusion ring (39).

CAUTION: When pressurizing, “CLOSE WINDOW” port. Ensure “OPEN WINDOW” port is notblocked. As an overpressure condition can occur, causing o-ring failure.


Pressure up "WINDOW CLOSE" port and fully close window. Close doors (13); turn lock screwsin until extended behind connector studs (8).

Upper Packer - Close BOP pipe rams to control well pressure and vent residual well pressure thatmay remain between the stripper packer and the BOP. Pressure up "SECONDARY RETRACT"port and fully retract piston (2). Rotate split cap (9) to most advantageous position and removesocket head cap screws (23). Install into threaded holes in split cap (9) as a tool to facilitateremoval. CAUTION: split cap weighs approx. 45 lbs. Grasp cap screw (23) and separate split cap(9) exposing bushing (35). Remove bushing (35). Pressure up "SECONDARY PACKOFF" topush packing elements up. Remove non-extrusion ring (39) and packer (32). Remove bushing(40). Inspect all bushings and packer elements; replace as necessary.

Install bushing (36). Pressure up "SECONDARY RETRACT" port and fully retract piston (2).Install packer (40) and non-extrusion ring (39). Install bushing (35); install split cap (9). Removesocket head cap screws (23) and bolt two halves of split cap (9) together.

5.0 DISASSEMBLY/ASSEMBLY - Reference Drawing DSV6-T001 & DSV6-T002

Disassembly - Repeat disassembly portion of packer replacement procedure as describedpreviously. Unscrew lock hub (10) from the upper body (5). Remove seals (24 & 25) and o-ring(32). Using hydraulic hand pump, cautiously pressurize the "SECONDARY PACKOFF" port topush piston (2) up and remove. Remove T-seal (26) and seals (24 & 25).

Remove cap nuts (12), taking care that doors (11) do not fall. Separate upper body (5) from lowerbody (7). Remove, if necessary, two #2 SAE plugs (14).

Using hydraulic hand pump, pressure up "WINDOW CLOSE" port to push packer change cylinder(3) up, taking care not to damage the sealing surface. Unscrew cylinder stop (4) from cylinder (3).

Release pressure from "WINDOW CLOSE" port. Remove twelve socket head cap screws (17),window guide (6) and seal (30). Remove packer change cylinder (3), seals (24 & 25) and T-Seal(28). Remove four set screws (18); unscrew lower body adapter (13) from lower body (7); removelock collar (20), union nut (19), o-ring (21) and back-up ring (22). Remove seals (24 & 25) and o-ring (27). Taking care not to damage sealing surfaces, remove piston (1) and o-ring (26).Remove seal (25) from lower body (7).

Clean and inspect all parts for wear and damage. Lubricate and replace as necessary.

Assembly - Reverse above Disassembly Procedure in same sequence and complete secondportion of Packer Replacement Procedure.


6.0 SPECIFICATIONS

Working PressureDSV4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10,000 psiDSV6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15,000 psi

Hydraulic PressurePack-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,000 psiRetract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,000 psi

Hydraulic Pressure to Operate Window (Max)Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,000 psiClose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,000 psi

Hydraulic Volume to Actuate WindowClose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 in3

Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 in3

Hydraulic Volumes to Actuate the PistonPrimary Pack-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 in3

Primary Retract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 in3

Secondary Pack-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 in3

Secondary Retract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 in3

TorqueNut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 ft. lbs.

Weight (approx.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 lbs.Overall Dimensions

O.D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.75 in.I.D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.06 in.DSV4 Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46.85 in.DSV6 Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45.65 in.

7.0 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 andassemble 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 wornparts.

Every four years in service strip down perform NDE on all critical items. Replace any worn parts.Two Year NDE requirements:All parts exposed to the well fluids will have to be inspected by NDE methods. The preferred NDEtest would be a wet magnetic particle testing. Not all parts can be tested in this method. If theparts can not 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 beinspected 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 can not be inspected with MPI then a dyepenetrant test will have to be conducted.


8.0 PARTS LISTS & DRAWING

3.06", 15M, "DSV4/DSV6" OVER & UNDER STRIPPER PACKERReference Drawing DSV6-T001

Item Part Name Qty. H2S Service

1 Piston, Lower 1 2001-39012 Piston, Upper 1 2001-39023 Cylinder 1 2001-39034 Stop, Cylinder 1 2001-39045 Body, Upper 1 2001-39066 Guide, Window 1 2001-39077 Body, Lower 1 2001-39088 Stud 4 2001-39099 Split Cap 1 2001-391110 Lock Hub 1 2001-391211 Door Assembly 2 2001-391312 Nut 4 9609-2629

13 Sub, Adapter 1 2001-391014 Plug 5 7934-020215 Plug 6 7934-020416 Plug Assembly 2 7934-909417 Socket Head Cap Screw 12 7935-080418 Set Screw 2 7942-050319 Union Nut 1 8205-142220 Collar 1 8205-142421 O-Ring 1 7913-434522 Back Up Ring 1 7992-164823 Socket Head Cap Screw 2 7947-0808Y24 Seal 4 7921-400925 T-Seal 5 7950-134526 T-Seal 2 7951-335027 O-Ring 1 7913-335828 T-Seal 1 7951-143529 O-Ring 1 7913-336630 Seal, polymyte 1 7921-587231 Seal 2 7954-400932 O-Ring 1 7913-325833 Thrust Bearing 2 2001-391834 Lock Knob 2 2000-1863


Item Part Name Qty. H2S Service

35 Top Bushing 11.00 Coil 2001-15351.50 Coil 2001-15411.75 Coil 2001-15442.00 Coil 2001-15512.37 Coil 2001-1561

36 Long Bushing 11.00 Coil 2001-16351.50 Coil 2001-16411.75 Coil 2001-16442.00 Coil 2001-16512.37 Coil 2001-1661

37

Lower Bushing 11.00 Coil 2001-17351.50 Coil 2001-17411.75 Coil 2001-17442.00 Coil 2001-17512.37 Coil 2001-1761

38 Top Lower Bushing 11.00 Coil 2001-18351.50 Coil 2001-18411.75 Coil 2001-18442.00 Coil 2001-18512.37 Coil 2001-1861

39 Non-Extrusion Ring 21.00 Coil 8204-22351.50 Coil 8204-22411.75 Coil 8204-22442.00 Coil 8204-22512.37 Coil 8204-2261

40 Packer 21.00 Coil 8412-60351.50 Coil 8412-60411.75 Coil 8412-60442.00 Coil 8412-60512.37 Coil 8412-6061

41 Tag Kit 1 DSU4-TAG142 Adapter Sub 15M BX154 1 2001-392043 Adapter Sub 10M BX154 1 2001-391944 Adapter Sub 15M BX155 1 2001-3921


SEAL KIT3.06", 15M, "DSV4/DSV6" OVER & UNDER STRIPPER PACKER

15K with Open Flange

Assembly No. DSV6-SK01

Item Part Name Qty. H2S & North Sea -32°C

24 Seal 4 7921-4009

25 Seal 5 7950-1345

26 T-Seal 2 7951-3350

27 O-Ring 1 7912-3358

28 T-Seal 1 7951-1435

29 O-Ring 1 7913-3366

30 Seal, polymyte 1 7921-5872

31 Seal 2 7954-4009

SEAL KIT3.06", 15M, "DSV4/DSV6" OVER & UNDER STRIPPER PACKER

10K with CB34 Bottom Sub

Assembly No. DSV4-SK01

Item Part Name Qty. H2S & North Sea -32°C

21 O-Ring 1 7913-4345

22 Back Up Ring 1 7992-1648

24 Seal 4 7921-4009

25 T-Seal 5 7950-1345

26 T-Seal 2 7951-3350

27 O-Ring 1 7913-3358

28 T-Seal 1 7951-1435

29 O-Ring 1 7913-3366

30 Seal, polymyte 1 7921-5872

31 Seal 2 7954-4009


9.0 PACKER AND BUSHING CONVERSION KITSReference Drawing DSV6-T001

Item Part Name Qty. H2S, North Sea & Arctic Extended 1 ½" Conversion Kit - 1.00 Coiled Tubing DSV6-SC35 DSV6-SC35X35 Top Bushing 1 2001-1535 2001-193536 Long Bushing 1 2001-1635 2001-163537 Lower Bushing 1 2001-1735 2001-173538 Top Lower Bushing 1 2001-1835 2001-183539 Non-Extrusion Ring 2 8214-2232 8204-223240 Packer 2 8412-6035 8412-6035

Conversion Kit - 1.25 Coiled Tubing DSV6-SC37 DSV6-SC37X35 Top Bushing 1 2001-1537 2001-193736 Long Bushing 1 2001-1637 2001-163737 Lower Bushing 1 2001-1737 2001-173738 Top Lower Bushing 1 2001-1837 2001-183739 Non-Extrusion Ring 2 8204-2237 8204-223740 Packer 2 8214-6037 8214-6037Conversion Kit - 1.50 Coiled Tubing DSV6-SC41 DSV6-SC4135 Top Bushing 1 2001-1541 2001-194136 Long Bushing 1 2001-1641 2001-164137 Lower Bushing 1 2001-1741 2001-174138 Top Lower Bushing 1 2001-1841 2001-184139 Non-Extrusion Ring 2 8204-2241 8204-224140 Packer 2 8412-6041 8412-6041Conversion Kit - 1.75 Coiled Tubing DSV6-SC44 DSV6-SC44X35 Top Bushing 1 2001-1544 2001-194436 Long Bushing 1 2001-1644 2001-164437 Lower Bushing 1 2001-1744 2001-174438 Top Lower Bushing 1 2001-1844 2001-184439 Non-Extrusion Ring 2 8204-2244 8204-224440 Packer 2 8412-6044 8412-6044Conversion Kit - 2.00 Coiled Tubing DSV4-SC51 DSV4-SC51X35 Top Bushing 1 2001-1551 2001-195136 Long Bushing 1 2001-1651 2001-165137 Lower Bushing 1 2001-1751 2001-175138 Top Lower Bushing 1 2001-1851 2001-185139 Non-Extrusion Ring 2 8204-2251 8204-225140 Packer 2 8212-6051 8412-6051Conversion Kit - 2.37 Coiled Tubing DSV4-SC61 DSV4-SC61X35 Top Bushing 1 2001-1561 2001-196136 Long Bushing 1 2001-1661 2001-166137 Lower Bushing 1 2001-1761 2001-176138 Top Lower Bushing 1 2001-1861 2001-186139 Non-Extrusion Ring 2 8204-2261 8204-226140 Packer 2 8214-6061 8214-6061

* Extended Upper Bushing for Service in HR580 Head when using manual injector connector JIC0-BV00.

stripper packer dsv4 3.06 1 ventana

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