EG21701A - Drill bit - Google Patents

Drill bit

Info

Publication number: EG21701A
Authority: EG; Egypt
Prior art keywords: drill bit; drill; bit
Prior art date: 1997-08-28

Application number

EG102898A

Inventor

Hans Djurre

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.)

1997-08-28

Filing date

1998-08-27

Publication date

2002-02-27

1998-08-27 Application filed by Shell Int Research filed Critical Shell Int Research

2002-02-27 Application granted granted Critical

2002-02-27 Publication of EG21701A publication Critical patent/EG21701A/en

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
- E21B10/08—Roller bits
- E21B10/16—Roller bits characterised by tooth form or arrangement
- 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
- E21B10/08—Roller bits
- E21B10/12—Roller bits with discs cutters

Landscapes

Engineering & Computer Science (AREA)
Geology (AREA)
Life Sciences & Earth Sciences (AREA)
Mining & Mineral Resources (AREA)
Physics & Mathematics (AREA)
Environmental & Geological Engineering (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Earth Drilling (AREA)
Surgical Instruments (AREA)
Drilling Tools (AREA)
Holo Graphy (AREA)

EG102898A 1997-08-28 1998-08-27 Drill bit EG21701A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP97306602		1997-08-28

Publications (1)

Publication Number	Publication Date
EG21701A true EG21701A (en)	2002-02-27

Family

ID=8229483

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EG102898A EG21701A (en)	1997-08-28	1998-08-27	Drill bit

Country Status (12)

Country	Link
CN (1)	CN1098400C (en)
AR (1)	AR016883A1 (en)
AU (1)	AU727657B2 (en)
BR (1)	BR9811389A (en)
CA (1)	CA2300158A1 (en)
EG (1)	EG21701A (en)
GB (1)	GB2344842B (en)
ID (1)	ID24483A (en)
NO (1)	NO318151B1 (en)
OA (1)	OA11327A (en)
RU (1)	RU2206701C2 (en)
WO (1)	WO1999011900A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EG22664A (en) *	2000-09-08	2003-05-31	Shell Int Research	Drill bit
CN102747960A (en) *	2012-07-11	2012-10-24	江汉石油钻头股份有限公司	Hybrid drill bit
CN112557092B (en) *	2020-12-29	2022-08-09	中国原子能科学研究院	Sampling device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US511894A (en) *		1894-01-02		Display-case
BE639074A (en) *	1962-10-23
US3265139A (en) *	1963-12-09	1966-08-09	Continental Oil Co	Roller cone drill bit
JPS59122690A (en) *	1982-12-28	1984-07-16	住友金属鉱山株式会社	Underground drilling drill bit
US5111894A (en) *	1990-08-23	1992-05-12	Sybil J. Williams	Uninterrupted drill bit
US5311958A (en) *	1992-09-23	1994-05-17	Baker Hughes Incorporated	Earth-boring bit with an advantageous cutting structure
US5394952A (en) *	1993-08-24	1995-03-07	Smith International, Inc.	Core cutting rock bit

1998
- 1998-08-26 AR ARP980104232 patent/AR016883A1/en active IP Right Grant
- 1998-08-27 EG EG102898A patent/EG21701A/en active
- 1998-08-28 BR BR9811389-5A patent/BR9811389A/en not_active Application Discontinuation
- 1998-08-28 GB GB0003248A patent/GB2344842B/en not_active Expired - Fee Related
- 1998-08-28 CN CN98808608A patent/CN1098400C/en not_active Expired - Fee Related
- 1998-08-28 CA CA002300158A patent/CA2300158A1/en not_active Abandoned
- 1998-08-28 WO PCT/EP1998/005703 patent/WO1999011900A1/en active IP Right Grant
- 1998-08-28 ID IDW20000365A patent/ID24483A/en unknown
- 1998-08-28 AU AU95378/98A patent/AU727657B2/en not_active Ceased
- 1998-08-28 RU RU2000107855A patent/RU2206701C2/en not_active IP Right Cessation
2000
- 2000-02-25 NO NO20000938A patent/NO318151B1/en not_active IP Right Cessation
- 2000-02-28 OA OA1200000056A patent/OA11327A/en unknown

Also Published As

Publication number	Publication date
WO1999011900A1 (en)	1999-03-11
AU727657B2 (en)	2000-12-21
OA11327A (en)	2003-12-09
AU9537898A (en)	1999-03-22
NO20000938D0 (en)	2000-02-25
CA2300158A1 (en)	1999-03-11
RU2206701C2 (en)	2003-06-20
GB2344842B (en)	2001-11-28
AR016883A1 (en)	2001-08-01
ID24483A (en)	2000-07-20
CN1268991A (en)	2000-10-04
NO318151B1 (en)	2005-02-07
NO20000938L (en)	2000-02-25
GB0003248D0 (en)	2000-04-05
GB2344842A (en)	2000-06-21
BR9811389A (en)	2000-08-29
CN1098400C (en)	2003-01-08

Publication	Publication Date	Title
GB2328966B (en)	2002-02-20	Drill bit
GB9818517D0 (en)	1998-10-21	Drill bit
GB9826243D0 (en)	1999-01-20	Drill bit
GB2317632B (en)	2001-01-17	Drill bit
GB9826244D0 (en)	1999-01-20	Drill bit
EG21606A (en)	2001-12-31	Drill string tool
GB2328699B (en)	2002-02-13	Drilling rig
GB2324556B (en)	2001-06-06	Drill bit tooth
ZA981013B (en)	1998-08-27	Drill bit
HUP0100411A3 (en)	2001-07-30	Rock drilling tool
GB2326897B (en)	2002-05-01	Drill bit
GB2330163B (en)	2002-03-13	Drill bit
PL326856A1 (en)	1998-12-21	Drilling rig
GB2290323B (en)	1997-06-11	Rock bit
HUP0001473A3 (en)	2001-02-28	Boring bit
ZA985216B (en)	1999-01-07	A drill bit
GB9724208D0 (en)	1998-01-14	Drill bit
GB9700156D0 (en)	1997-02-26	Drill bit dispenser
GB2344842B (en)	2001-11-28	Drill bit
GR3033073T3 (en)	2000-08-31	Drill bit
PL312337A1 (en)	1996-07-22	Drilling bit
GB9624641D0 (en)	1997-01-15	Drill bit
AU136960S (en)	1999-04-06	Drill bit
GB0126519D0 (en)	2002-01-02	Drill bit
GB2301788B (en)	1998-08-12	Drill bit