NO20021630L - Drill string element with bearings - Google Patents
Drill string element with bearingsInfo
- Publication number
- NO20021630L NO20021630L NO20021630A NO20021630A NO20021630L NO 20021630 L NO20021630 L NO 20021630L NO 20021630 A NO20021630 A NO 20021630A NO 20021630 A NO20021630 A NO 20021630A NO 20021630 L NO20021630 L NO 20021630L
- Authority
- NO
- Norway
- Prior art keywords
- drill string
- bearings
- string element
- breakages
- drilling
- Prior art date
Links
- 238000005553 drilling Methods 0.000 abstract 1
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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
- E21B17/1064—Pipes or rods with a relatively rotating sleeve
-
- 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Adornments (AREA)
- Rolling Contact Bearings (AREA)
- Harvester Elements (AREA)
- Drilling Tools (AREA)
- Surgical Instruments (AREA)
- Toys (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
A drill string member comprising a body (1), and bearing races (5) around the circumference of the member. In certain embodiment, the presence of spherical bearings (25) on the surface of the member reduces radial torque and vertical drag to enable easier operation of the drill string. Advantages of one embodiment includes a reduction in the wear or breakages of the components used in drilling.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9924114.3A GB9924114D0 (en) | 1999-10-13 | 1999-10-13 | Drill pipe |
PCT/GB2000/003829 WO2001027434A2 (en) | 1999-10-13 | 2000-10-06 | Drill string member with bearings |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20021630L true NO20021630L (en) | 2002-04-05 |
NO20021630D0 NO20021630D0 (en) | 2002-04-05 |
Family
ID=10862585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20021630A NO20021630D0 (en) | 1999-10-13 | 2002-04-05 | Drill string element with bearings |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1226329B1 (en) |
AT (1) | ATE256817T1 (en) |
AU (1) | AU7544900A (en) |
CA (1) | CA2385443A1 (en) |
DE (1) | DE60007349D1 (en) |
GB (1) | GB9924114D0 (en) |
NO (1) | NO20021630D0 (en) |
WO (1) | WO2001027434A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0118270D0 (en) * | 2001-07-27 | 2001-09-19 | Internat Tubular Services Ltd | "Tool string member with bearings" |
US9810030B2 (en) | 2013-06-03 | 2017-11-07 | Evolution Engineering Inc. | Mud motor with integrated abrasion-resistant structure |
CN103710015B (en) * | 2013-12-25 | 2016-08-17 | 四川宝麟新材料科技有限公司 | A kind of oil gas field volume increase emulsion-type drag reducer and preparation method thereof |
CN110080693B (en) * | 2018-01-25 | 2020-10-09 | 中国石油化工股份有限公司 | Drilling tool centralizer |
GB201803284D0 (en) * | 2018-02-28 | 2018-04-11 | Kaseum Holdings Ltd | Roller tool |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1877395A (en) * | 1928-05-14 | 1932-09-13 | Emsco Derrick & Equip Co | Antifriction device for drill pipe |
GB8914882D0 (en) * | 1989-06-29 | 1989-08-23 | Red Baron Oil Tools Rental | Drill string component |
US5148876A (en) * | 1991-06-10 | 1992-09-22 | Prideco, Inc. | Lightweight drill pipe |
US5339910A (en) * | 1993-04-14 | 1994-08-23 | Union Oil Company Of California | Drilling torsional friction reducer |
-
1999
- 1999-10-13 GB GBGB9924114.3A patent/GB9924114D0/en not_active Ceased
-
2000
- 2000-10-06 EP EP00964521A patent/EP1226329B1/en not_active Expired - Lifetime
- 2000-10-06 CA CA002385443A patent/CA2385443A1/en not_active Abandoned
- 2000-10-06 AU AU75449/00A patent/AU7544900A/en not_active Abandoned
- 2000-10-06 AT AT00964521T patent/ATE256817T1/en not_active IP Right Cessation
- 2000-10-06 WO PCT/GB2000/003829 patent/WO2001027434A2/en active IP Right Grant
- 2000-10-06 DE DE60007349T patent/DE60007349D1/en not_active Expired - Lifetime
-
2002
- 2002-04-05 NO NO20021630A patent/NO20021630D0/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA2385443A1 (en) | 2001-04-19 |
ATE256817T1 (en) | 2004-01-15 |
NO20021630D0 (en) | 2002-04-05 |
AU7544900A (en) | 2001-04-23 |
WO2001027434A3 (en) | 2001-10-11 |
EP1226329A2 (en) | 2002-07-31 |
EP1226329B1 (en) | 2003-12-17 |
GB9924114D0 (en) | 1999-12-15 |
WO2001027434A2 (en) | 2001-04-19 |
DE60007349D1 (en) | 2004-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |