GB2287731B - Drillstring assembly and torque decoupler therefor - Google Patents
Drillstring assembly and torque decoupler thereforInfo
- Publication number
- GB2287731B GB2287731B GB9405236A GB9405236A GB2287731B GB 2287731 B GB2287731 B GB 2287731B GB 9405236 A GB9405236 A GB 9405236A GB 9405236 A GB9405236 A GB 9405236A GB 2287731 B GB2287731 B GB 2287731B
- Authority
- GB
- United Kingdom
- Prior art keywords
- therefor
- drillstring assembly
- torque decoupler
- decoupler
- torque
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9405236A GB2287731B (en) | 1994-03-17 | 1994-03-17 | Drillstring assembly and torque decoupler therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9405236A GB2287731B (en) | 1994-03-17 | 1994-03-17 | Drillstring assembly and torque decoupler therefor |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9405236D0 GB9405236D0 (en) | 1994-04-27 |
GB2287731A GB2287731A (en) | 1995-09-27 |
GB2287731B true GB2287731B (en) | 1997-10-29 |
Family
ID=10752023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9405236A Expired - Fee Related GB2287731B (en) | 1994-03-17 | 1994-03-17 | Drillstring assembly and torque decoupler therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2287731B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6439618B1 (en) * | 1998-05-04 | 2002-08-27 | Weatherford/Lamb, Inc. | Coiled tubing connector |
GB2378196B (en) | 2001-07-30 | 2005-09-14 | Smith International | Downhole release joint |
GB2381806A (en) * | 2001-11-13 | 2003-05-14 | Ruff Pup Ltd | Torque isolation mechanism |
GB0507639D0 (en) | 2005-04-15 | 2005-05-25 | Caledus Ltd | Downhole swivel sub |
CN114293913B (en) * | 2022-03-11 | 2022-05-13 | 西南石油大学 | Downhole friction-reducing and resistance-reducing tool and method based on mechanical decoupling |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4295535A (en) * | 1979-08-20 | 1981-10-20 | Smith International, Inc. | In-hole motor drill with locking bit clutch |
US4299296A (en) * | 1979-07-06 | 1981-11-10 | Smith International, Inc. | In-hole motor drill with bit clutch |
-
1994
- 1994-03-17 GB GB9405236A patent/GB2287731B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4299296A (en) * | 1979-07-06 | 1981-11-10 | Smith International, Inc. | In-hole motor drill with bit clutch |
US4295535A (en) * | 1979-08-20 | 1981-10-20 | Smith International, Inc. | In-hole motor drill with locking bit clutch |
Also Published As
Publication number | Publication date |
---|---|
GB9405236D0 (en) | 1994-04-27 |
GB2287731A (en) | 1995-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20010317 |