DE68912061D1 - Drehbohrmeissel zum Bohren durch klebrige Schichten. - Google Patents
Drehbohrmeissel zum Bohren durch klebrige Schichten.Info
- Publication number
- DE68912061D1 DE68912061D1 DE89202639T DE68912061T DE68912061D1 DE 68912061 D1 DE68912061 D1 DE 68912061D1 DE 89202639 T DE89202639 T DE 89202639T DE 68912061 T DE68912061 T DE 68912061T DE 68912061 D1 DE68912061 D1 DE 68912061D1
- Authority
- DE
- Germany
- Prior art keywords
- drilling
- drill bit
- rotary drill
- sticky layers
- sticky
- 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
- 238000005553 drilling Methods 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888824546A GB8824546D0 (en) | 1988-10-20 | 1988-10-20 | Rotary drill bit for drilling through sticky formations |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68912061D1 true DE68912061D1 (de) | 1994-02-17 |
DE68912061T2 DE68912061T2 (de) | 1994-04-28 |
Family
ID=10645490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE89202639T Expired - Fee Related DE68912061T2 (de) | 1988-10-20 | 1989-10-18 | Drehbohrmeissel zum Bohren durch klebrige Schichten. |
Country Status (8)
Country | Link |
---|---|
US (1) | US5197554A (de) |
EP (1) | EP0365100B1 (de) |
CA (1) | CA2001178C (de) |
DE (1) | DE68912061T2 (de) |
DK (1) | DK170866B1 (de) |
ES (1) | ES2048828T3 (de) |
GB (1) | GB8824546D0 (de) |
NO (1) | NO180551C (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5803196A (en) * | 1996-05-31 | 1998-09-08 | Diamond Products International | Stabilizing drill bit |
US6125947A (en) * | 1997-09-19 | 2000-10-03 | Baker Hughes Incorporated | Earth-boring drill bits with enhanced formation cuttings removal features and methods of drilling |
US6302223B1 (en) | 1999-10-06 | 2001-10-16 | Baker Hughes Incorporated | Rotary drag bit with enhanced hydraulic and stabilization characteristics |
US8020639B2 (en) * | 2008-12-22 | 2011-09-20 | Baker Hughes Incorporated | Cutting removal system for PDC drill bits |
US8517124B2 (en) * | 2009-12-01 | 2013-08-27 | Northbasin Energy Services Inc. | PDC drill bit with flute design for better bit cleaning |
CN108945640B (zh) * | 2018-07-12 | 2021-11-12 | 江苏恒添源新材料科技有限公司 | 粉笔包膜整机 |
CN111520079A (zh) * | 2020-06-23 | 2020-08-11 | 西南石油大学 | 一种冠部轮廓偏移的pdc钻头刀翼 |
CN112324349B (zh) * | 2020-11-10 | 2023-10-03 | 河南四方达超硬材料股份有限公司 | 一种多重犁削的金刚石复合片及钻头 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2371489A (en) * | 1943-08-09 | 1945-03-13 | Sam P Daniel | Drill bit |
US3215215A (en) * | 1962-08-27 | 1965-11-02 | Exxon Production Research Co | Diamond bit |
US4397363A (en) * | 1980-01-10 | 1983-08-09 | Drilling & Service U.K. Limited | Rotary drill bits and method of use |
US4554986A (en) * | 1983-07-05 | 1985-11-26 | Reed Rock Bit Company | Rotary drill bit having drag cutting elements |
US4655303A (en) * | 1985-11-22 | 1987-04-07 | Amoco Corporation | Drill bit |
GB2185506B (en) * | 1986-01-21 | 1989-03-30 | Shell Int Research | Rotary drill bit |
US4696354A (en) * | 1986-06-30 | 1987-09-29 | Hughes Tool Company - Usa | Drilling bit with full release void areas |
GB8628168D0 (en) * | 1986-11-22 | 1986-12-31 | Nl Petroleum Prod | Rotary drill bits |
US4794994A (en) * | 1987-03-26 | 1989-01-03 | Reed Tool Company | Drag drill bit having improved flow of drilling fluid |
EP0295045A3 (de) * | 1987-06-09 | 1989-10-25 | Reed Tool Company | Drehfräsmeissel mit Reinigungsdüsen |
-
1988
- 1988-10-20 GB GB888824546A patent/GB8824546D0/en active Pending
-
1989
- 1989-10-18 DE DE89202639T patent/DE68912061T2/de not_active Expired - Fee Related
- 1989-10-18 ES ES89202639T patent/ES2048828T3/es not_active Expired - Lifetime
- 1989-10-18 EP EP89202639A patent/EP0365100B1/de not_active Expired - Lifetime
- 1989-10-19 NO NO894176A patent/NO180551C/no unknown
- 1989-10-19 DK DK519489A patent/DK170866B1/da not_active IP Right Cessation
- 1989-10-19 US US07/422,885 patent/US5197554A/en not_active Expired - Fee Related
- 1989-10-20 CA CA002001178A patent/CA2001178C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB8824546D0 (en) | 1988-11-23 |
CA2001178C (en) | 2004-03-16 |
EP0365100A3 (de) | 1991-04-03 |
ES2048828T3 (es) | 1994-04-01 |
US5197554A (en) | 1993-03-30 |
EP0365100A2 (de) | 1990-04-25 |
NO894176L (no) | 1990-04-23 |
CA2001178A1 (en) | 1990-04-20 |
DK519489D0 (da) | 1989-10-19 |
DK519489A (da) | 1990-04-21 |
DE68912061T2 (de) | 1994-04-28 |
NO180551B (no) | 1997-01-27 |
NO894176D0 (no) | 1989-10-19 |
DK170866B1 (da) | 1996-02-19 |
NO180551C (no) | 1997-05-07 |
EP0365100B1 (de) | 1994-01-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |