DE68912061T2 - Drehbohrmeissel zum Bohren durch klebrige Schichten. - Google Patents

Drehbohrmeissel zum Bohren durch klebrige Schichten.

Info

Publication number
DE68912061T2
DE68912061T2 DE89202639T DE68912061T DE68912061T2 DE 68912061 T2 DE68912061 T2 DE 68912061T2 DE 89202639 T DE89202639 T DE 89202639T DE 68912061 T DE68912061 T DE 68912061T DE 68912061 T2 DE68912061 T2 DE 68912061T2
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
Application number
DE89202639T
Other languages
English (en)
Other versions
DE68912061D1 (de
Inventor
Djurre Hans Zijsling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Application granted granted Critical
Publication of DE68912061D1 publication Critical patent/DE68912061D1/de
Publication of DE68912061T2 publication Critical patent/DE68912061T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
DE89202639T 1988-10-20 1989-10-18 Drehbohrmeissel zum Bohren durch klebrige Schichten. Expired - Fee Related DE68912061T2 (de)

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 DE68912061D1 (de) 1994-02-17
DE68912061T2 true 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ES2048828T3 (es) 1994-04-01
EP0365100A3 (de) 1991-04-03
CA2001178A1 (en) 1990-04-20
US5197554A (en) 1993-03-30
GB8824546D0 (en) 1988-11-23
DK170866B1 (da) 1996-02-19
CA2001178C (en) 2004-03-16
EP0365100B1 (de) 1994-01-05
DK519489A (da) 1990-04-21
EP0365100A2 (de) 1990-04-25
NO894176D0 (no) 1989-10-19
NO894176L (no) 1990-04-23
NO180551B (no) 1997-01-27
NO180551C (no) 1997-05-07
DE68912061D1 (de) 1994-02-17
DK519489D0 (da) 1989-10-19

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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