EG21701A - Drill bit - Google Patents

Drill bit

Info

Publication number
EG21701A
EG21701A EG102898A EG102898A EG21701A EG 21701 A EG21701 A EG 21701A EG 102898 A EG102898 A EG 102898A EG 102898 A EG102898 A EG 102898A EG 21701 A EG21701 A EG 21701A
Authority
EG
Egypt
Prior art keywords
drill bit
drill
bit
Prior art date
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.)
Filing date
Publication date
Application filed by Shell Int Research filed Critical Shell Int Research
Application granted granted Critical
Publication of EG21701A publication Critical patent/EG21701A/en

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
    • E21B10/08—Roller bits
    • E21B10/16—Roller bits characterised by tooth form or arrangement
    • 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
    • E21B10/08—Roller bits
    • E21B10/12—Roller bits with discs cutters
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
GC0000369A (en) * 2000-09-08 2007-03-31 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

Also Published As

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

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