DK519489A - Borekrone - Google Patents

Borekrone

Info

Publication number
DK519489A
DK519489A DK519489A DK519489A DK519489A DK 519489 A DK519489 A DK 519489A DK 519489 A DK519489 A DK 519489A DK 519489 A DK519489 A DK 519489A DK 519489 A DK519489 A DK 519489A
Authority
DK
Denmark
Prior art keywords
krone
bore
bore krone
Prior art date
Application number
DK519489A
Other languages
English (en)
Other versions
DK170866B1 (da
DK519489D0 (da
Inventor
Djurre Hans Zijsling
Original Assignee
Shell Int Research
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 Int Research filed Critical Shell Int Research
Publication of DK519489D0 publication Critical patent/DK519489D0/da
Publication of DK519489A publication Critical patent/DK519489A/da
Application granted granted Critical
Publication of DK170866B1 publication Critical patent/DK170866B1/da

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
    • 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

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)
  • Drilling Tools (AREA)
DK519489A 1988-10-20 1989-10-19 Borekrone DK170866B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888824546A GB8824546D0 (en) 1988-10-20 1988-10-20 Rotary drill bit for drilling through sticky formations
GB8824546 1988-10-20

Publications (3)

Publication Number Publication Date
DK519489D0 DK519489D0 (da) 1989-10-19
DK519489A true DK519489A (da) 1990-04-21
DK170866B1 DK170866B1 (da) 1996-02-19

Family

ID=10645490

Family Applications (1)

Application Number Title Priority Date Filing Date
DK519489A DK170866B1 (da) 1988-10-20 1989-10-19 Borekrone

Country Status (8)

Country Link
US (1) US5197554A (da)
EP (1) EP0365100B1 (da)
CA (1) CA2001178C (da)
DE (1) DE68912061T2 (da)
DK (1) DK170866B1 (da)
ES (1) ES2048828T3 (da)
GB (1) GB8824546D0 (da)
NO (1) NO180551C (da)

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 (en) * 1987-06-09 1989-10-25 Reed Tool Company Rotary drag bit having scouring nozzles

Also Published As

Publication number Publication date
ES2048828T3 (es) 1994-04-01
EP0365100A2 (en) 1990-04-25
DE68912061T2 (de) 1994-04-28
US5197554A (en) 1993-03-30
NO894176L (no) 1990-04-23
EP0365100A3 (en) 1991-04-03
CA2001178A1 (en) 1990-04-20
EP0365100B1 (en) 1994-01-05
NO180551C (no) 1997-05-07
DE68912061D1 (de) 1994-02-17
DK170866B1 (da) 1996-02-19
NO180551B (no) 1997-01-27
DK519489D0 (da) 1989-10-19
CA2001178C (en) 2004-03-16
GB8824546D0 (en) 1988-11-23
NO894176D0 (no) 1989-10-19

Similar Documents

Publication Publication Date Title
NO169735C (no) Kombinasjonsborekrone
NO911757L (no) Boreroer-broplugg
ATA900689A (de) Calcitoninpeptide
DK348289D0 (da) Forbindelser
ATA172889A (de) Furanderivate
FR2640347B1 (fr) Vanne de retenue bipetale
FR2634652B1 (fr) Valve respiratoire asservissable
NO892911D0 (no) Boreroerforbindelse.
BR8907717A (pt) Valvula
DK1788D0 (da) Boreelement
DK519489D0 (da) Borekrone
NO892910D0 (no) Boreroer.
FI91488B (fi) Seula
DK61888A (da) Borespids
NO903140D0 (no) Borekrone.
NO864701L (no) Borekrone.
SE8803397D0 (sv) Tandsticka
IS3338A7 (is) Torleiði-seinkunarlína
BR6800741U (pt) Morsa independente
BR6801964U (pt) Fecho
IT8817401A0 (it) Fermoblok
NO880441D0 (no) Kombinasjonsborekrone.
BR8803038A (pt) Segue-linha
SE8800664D0 (sv) Sikt
BR6800779U (pt) Valvula de deslizamento

Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed