DK519489D0 - Borekrone - Google Patents

Borekrone

Info

Publication number: DK519489D0
Authority: DK; Denmark
Prior art keywords: krone; bore; bore krone
Prior art date: 1988-10-20

Application number

DK519489A

Other languages

English (en)

Other versions

DK170866B1 (da

DK519489A (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.)

1988-10-20

Filing date

1989-10-19

Publication date

1989-10-19

1989-10-19 Application filed by Shell Int Research filed Critical Shell Int Research

1989-10-19 Publication of DK519489D0 publication Critical patent/DK519489D0/da

1990-04-21 Publication of DK519489A publication Critical patent/DK519489A/da

1996-02-19 Application granted granted Critical

1996-02-19 Publication of DK170866B1 publication Critical patent/DK170866B1/da

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
GB8824546		1988-10-20
GB888824546A GB8824546D0 (en)	1988-10-20	1988-10-20	Rotary drill bit for drilling through sticky formations

Publications (3)

Publication Number	Publication Date
DK519489D0 true DK519489D0 (da)	1989-10-19
DK519489A 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

1988
- 1988-10-20 GB GB888824546A patent/GB8824546D0/en active Pending
1989
- 1989-10-18 EP EP89202639A patent/EP0365100B1/en not_active Expired - Lifetime
- 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
- 1989-10-19 US US07/422,885 patent/US5197554A/en not_active Expired - Fee Related
- 1989-10-19 DK DK519489A patent/DK170866B1/da not_active IP Right Cessation
- 1989-10-19 NO NO894176A patent/NO180551C/no unknown
- 1989-10-20 CA CA002001178A patent/CA2001178C/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
DE68912061D1 (de)	1994-02-17
EP0365100A3 (en)	1991-04-03
NO894176L (no)	1990-04-23
DK170866B1 (da)	1996-02-19
ES2048828T3 (es)	1994-04-01
EP0365100A2 (en)	1990-04-25
NO180551C (no)	1997-05-07
EP0365100B1 (en)	1994-01-05
DE68912061T2 (de)	1994-04-28
NO894176D0 (no)	1989-10-19
DK519489A (da)	1990-04-21
US5197554A (en)	1993-03-30
CA2001178A1 (en)	1990-04-20
NO180551B (no)	1997-01-27
CA2001178C (en)	2004-03-16
GB8824546D0 (en)	1988-11-23

Publication	Publication Date	Title
NO169735C (no)	1992-07-29	Kombinasjonsborekrone
NO911757L (no)	1991-12-05	Boreroer-broplugg
ATA901789A (de)	1997-07-15	Somatostatinpeptid
ATA172889A (de)	1994-02-15	Furanderivate
ATA900689A (de)	1997-01-15	Calcitoninpeptide
DK348289A (da)	1990-01-16	Forbindelser
FR2640347B1 (fr)	1992-06-19	Vanne de retenue bipetale
FR2634652B1 (fr)	1992-09-11	Valve respiratoire asservissable
NO892911D0 (no)	1989-07-14	Boreroerforbindelse.
BR8907717A (pt)	1991-07-30	Valvula
FI895203A7 (fi)	1990-05-06	Venttiili
DK1788D0 (da)	1988-01-05	Boreelement
NO892910L (no)	1990-01-29	Boreroer.
DK519489A (da)	1990-04-21	Borekrone
FI91488B (fi)	1994-03-31	Seula
FI892217L (fi)	1989-11-11	Dendritresistent sammansaettning.
DK61888D0 (da)	1988-02-08	Borespids
NO903140D0 (no)	1990-07-13	Borekrone.
NO864701L (no)	1988-05-26	Borekrone.
SE8803397D0 (sv)	1988-09-26	Tandsticka
FI896126A7 (fi)	1990-06-21	Kulmanmittain
IS3338A7 (is)	1988-11-28	Torleiði-seinkunarlína
BR6800741U (pt)	1989-11-14	Morsa independente
BR6801964U (pt)	1989-09-12	Fecho
IT8817401A0 (it)	1988-02-05	Fermoblok

Legal Events

Date	Code	Title	Description
1996-02-19	B1	Patent granted (law 1993)
1999-07-05	PBP	Patent lapsed