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Jet Research Center

Drill Collar Severing Tool

P/N 101293224 Rev. J

Page 18 of 20

Jet Research Center, 8432 South I-35W, Alvarado, Texas, 76009-9775, USA

Telephone 1-817-761-2000; Toll Free 1-800-451-5403; Fax 1-817-783-5812; Website www.jetresearch.com

Parts List and Assembly Diagrams

Item

Description

1 3/8"

Qty

1 3/4"

Qty

2 5/8"

Qty

2-1/8" HP

Qty

100118390

101292915

101292956

101292957

101604779

Carrier Tube Assy

100157801

100157789

101292982

100157797

101540460

DCST Adapter

100157807

100158288

100157816

100158290

101538611

O-Ring

100158385

100158386

100158387

100158388

100158375

Cap Screw
1/4-20 UNC-2A X .188

100158394

End Clamp (Alum Washer)

100157806

101292904

101292911

101292912

101292911

MDF Sleeve

N/A

101292901

101292902

101292903

101540498

Cap Screw
1/4-20 UNC-2A X .375

100158395

Set Screw
6-32 UNC-2A X .125

100158393

N/A

8-32 UNC-2A X .188

N/A

100158396

Spacer Spring

100157803

101205992

101205994

101205995

101205994

10A

Extension Mandrel Assy

100158260

100008258

101539987

Firing Head Assembly

Not Included

100157532

13A

Detonator - RED Top Fire

101272595

13B

HT Resitorized Detonator D1208

100000432

MDF Assembly

100118417

Explosive Kit, consisting of:

101214053

101293167

101293168

101293152

101293168

15.1

Pellets (HMX)

100118418

(28)

100015145

(44)

100118425

(64)

101293160

(110)

100118425

(64)

15.2

Cartridges (HMX)

100118419

(2)

100015146

(2)

100118426

(2)

101293161

(2)

100118426

(2)

15A

Explosive Kit, consisting of:

101237459

101293207

101293234

101293235

101293234

15.1A

Pellets (HNS)

120135256

(28)

100118421

(44)

101015435

(64)

101295855

(110)

101015435

(64)

15.2A

Cartridges (HNS)

120135257

(2)

100118422

(2)

101015436

(2)

101295856

(2)

101015436

(2)

11A

Adapter for RED (w/ O-Ring)

120042268

101293676

O-Ring for Adapter

100158373

Shunt Plug

100118431

100010861

Protective Holder

100010862

Loading Tool

100118432

Firing Head Assembly

100118430

100000434

in kit (19)

2-1/8" HP DCST Adapter for RED

N/A

102273068

DCST Adapter

in kit (2A)

101293169

101293187

101293220

10B

Extension Mandrel 1-1/2"

N/A

101293227

Extension Mandrel 1-3/8"

101293225

N/A

11B

Adapter for RED

120042268

101293230

Hardware Kit, consiting of:

Parts in kit,rated for 26,00K

PSI

Explosive Items

Use item 20 to replace

DCST Adapter

Required Equipment (must be ordered seperately)

HP Accessories (For applications in excess of 15,000 PSI up to 20,000 PSI)

Table 4. Drill Collar Severing Tools Parts List

Содержание DCST

Страница 1: ...dures must be explicitly followed without attempts to shortcut alter switch or otherwise deviate in any way or use alternate parts from those intended to be supplied by Jet Research Center for such field assembly Use Utmost Care JRC warrants only title to the equipment products materials and supplies and that the same are free from defects in workmanship and materials THERE ARE NO WARRANTIES EXPRE...

Страница 2: ...research com This Field Loading Procedure should be followed in conjunction with the assembly and application of the following listed Jet Research Center Drill Collar Severing Tools 1 3 8 in OD 35 1 mm HMX 1 3 8 in OD 35 1 mm HNS 1 3 4 in OD 44 5 mm HMX 1 3 4 in OD 44 5 mm HNS 2 in OD 50 8 mm HMX 2 in OD 50 8 mm HNS 2 5 8 in OD 66 5 mm HMX 2 5 8 in OD 66 5 mm HNS 2 1 8in OD 54mm High Pressure HMX ...

Страница 3: ... with Electric Detonators 15 Section 6 Disarming and Disassembly Procedures with Electric Detonators 19 Section 7 Parts List and Assembly Diagrams 20 List of Tables Table 1 Drill Collar Severing Tools 6 Table 2 Required Assembly Tools List 9 Table 2b Required Hardware and Explosive Material List 10 Table 3 Required Parts List 16 Table 4 Drill Collar Severing Tools Parts List 20 List of Figures Fig...

Страница 4: ... Load only in designated areas Floors are to be covered with rubber mats No open flames welding or sparking devices are to be used in the loading area while handling explosives No smoking in the loading area while handling explosives No RF transmitting devices such as cellular telephones two way pagers or hand held radios are to be in the loading area Never strike drop force heat grind drill or ha...

Страница 5: ... grounded A shunt plug maintains the system electrically shorted during assembly as the detonator shunt wire is removed A protective holder encompasses the detonator shielding the Explosive Supervisor while the electrical connection is made to the CCL The DCST uses Resistorized detonators minimizing the chance of an accidental firing The DCST can also be initiated using a Top Fire RED detonator pr...

Страница 6: ...wellbore restrictions when shooting in open hole In the case of severing tool operations the main objective is to shoot the pipe in open hole to free the pipe Since the DCST is typically the cutter of last resort for recovery operations a successful cut is more important than if the recovered pipe is flared split or otherwise damaged For maximum efficiency the best option when the DCST is used for...

Страница 7: ... any cutter so the cut is made at the proper depth The tool will not free the string if initiated below or at the stuck section of pipe If possible tension should be applied to the drill string prior to tool initiation in order to increase the likelihood of severance The amount of over pull to be applied above string weight at the desired cut depth should be determined by the drilling representati...

Страница 8: ...age 8 of 20 Jet Research Center 8432 South I 35W Alvarado Texas 76009 9775 USA Telephone 1 817 761 2000 Toll Free 1 800 451 5403 Fax 1 817 783 5812 Website www jetresearch com Figure 2 Example of subsequent successful cut attempt directly across drill collar connection ...

Страница 9: ...ay current or a Top Fire RED detonator that provides additional safety enhancements when compared to conventional Resistorized detonators All previously established safety rules and regulations should be maintained during the assembly of explosives 4 2 Required Materials Item No Description Part No 1 Approved Blasters Multimeter 100009455 2 Set of Allen Wrench Standard Sizes 1 16 to 3 8 120143111 ...

Страница 10: ...ely 1 3 4 101293167 101293207 101292915 15 000 100158288 in kit 100008258 in kit 100000434 order separately 101293676 order separately 20 000 101293169 order separately 101293227 order separately 100000434 order separately 101293230 order separately 2 101293168 101293234 101292956 15 000 100157816 in kit 100008258 in kit 100000434 order separately 101293676 order separately 20 000 101293187 order ...

Страница 11: ...emaining pellets on the MDF tube Make sure there are an equal number of pellets on each side of the cartridges 4 3 6 Slide MDF Assembly tube through the center hole of the end clamp Hand tighten the Set Screw 7 to secure the end clamp to the tube At this time the explosive column should be tightly held with no play or movement between the base of the MDF and the end clamp Detail B Drawing D0005180...

Страница 12: ...inst the spacer spring 4 3 12 Install greased O Ring s 3 on DCST Adapter 2 Insert the adapter into the loaded carrier tube by using Loading Tool 18 4 3 13 Position and tighten the first two 2 Cap Screws 4 Remove the Loading Tool and insert remaining Cap Screws 4 3 14 Install proper RED Adapter if running RED Top Fire into the DCST Adapter as required by detonator reference Table 2b 4 3 15 The Expl...

Страница 13: ...hodic protection The Drill Collar Severing Tool may use a resistorized detonator which reduces the possibility of accidental firing by stray current or a Top Fire RED detonator that provides additional safety enhancements when compared to conventional resistorized detonators Note that each detonator requires the use of a different adapter sub item 17 All previously established safety rules and reg...

Страница 14: ...101293230 order separately 2 1 8 26 000 101539987 in kit 100157532 in kit Not Required if using 102273068 Table 3 Electrical hardware components 5 3 Check o rings size 214 on all parts listed making sure there are no cuts nicks or scratches install and replace as necessary Lubricate o rings and male threads only with a thin coating of clean downhole grease 5 4 Make up the firing head to the extens...

Страница 15: ...adapter 11 for the detonator assembly being used Refer to Table 3 for appropriate parts 5 12 Make up the protective holder 17 hand tight to the adapter extension mandrel and detonator assembly Wrench tighten the firing head extension mandrel and adapter The shunt plug and protective holder remain hand tight 5 13 Remove the shunt plug 5 14 Check the firing head extension mandrel detonator assembly ...

Страница 16: ...200 feet 70 m below ground on land or 200 feet 70 m below the seabed offshore 5 20 After Attempting to make the cut even if there are good indications that the DCST functioned it is still necessary to go back into SAFE and Radio Silence when coming out of the hole while still 200 feet 70 m below ground level on land or 200 feet 70 m below the seabed offshore Check that the grounding lines are stil...

Страница 17: ...70 m below the ground level on land or 200 feet 70 m below the sea bed offshore ensure that cable is in the SAFE position grounding lines are attached If required Radio Silence is in place and that the disassembly and disarming area is clear of non essential personnel 6 2 Remove the DCST from the adapter 11 while monitoring the disassembly for indications of trapped pressure 6 3 Install the protec...

Страница 18: ...0432 100000432 100000432 14 MDF Assembly 100118417 1 100118417 1 100118417 1 100118417 1 100118417 1 15 Explosive Kit consisting of 101214053 1 101293167 1 101293168 1 101293152 1 101293168 1 15 1 Pellets HMX 100118418 28 100015145 44 100118425 64 101293160 110 100118425 64 15 2 Cartridges HMX 100118419 2 100015146 2 100118426 2 101293161 2 100118426 2 15A Explosive Kit consisting of 101237459 1 1...

Страница 19: ...ring Tool P N 101293224 Rev J Page 19 of 20 Jet Research Center 8432 South I 35W Alvarado Texas 76009 9775 USA Telephone 1 817 761 2000 Toll Free 1 800 451 5403 Fax 1 817 783 5812 Website www jetresearch com Figure 3 DCST Assembly Drawing ...

Страница 20: ... Tool P N 101293224 Rev J Page 20 of 20 Jet Research Center 8432 South I 35W Alvarado Texas 76009 9775 USA Telephone 1 817 761 2000 Toll Free 1 800 451 5403 Fax 1 817 783 5812 Website www jetresearch com Figure 4 2 1 8 HP DCST Assembly Drawing ...

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