RO64710A - Trepan de forage - Google Patents

Trepan de forage

Info

Publication number
RO64710A
RO64710A RO7270774A RO7077472A RO64710A RO 64710 A RO64710 A RO 64710A RO 7270774 A RO7270774 A RO 7270774A RO 7077472 A RO7077472 A RO 7077472A RO 64710 A RO64710 A RO 64710A
Authority
RO
Romania
Prior art keywords
trepan
drilling
Prior art date
Application number
RO7270774A
Other languages
English (en)
French (fr)
Inventor
Christian Rederon
Original Assignee
Petroles Cie Francaise
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 Petroles Cie Francaise filed Critical Petroles Cie Francaise
Publication of RO64710A publication Critical patent/RO64710A/ro

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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • 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
    • E21B10/605—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a core-bit
RO7270774A 1971-05-04 1972-05-03 Trepan de forage RO64710A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7115966A FR2135053B1 (ro) 1971-05-04 1971-05-04

Publications (1)

Publication Number Publication Date
RO64710A true RO64710A (fr) 1979-06-15

Family

ID=9076363

Family Applications (1)

Application Number Title Priority Date Filing Date
RO7270774A RO64710A (fr) 1971-05-04 1972-05-03 Trepan de forage

Country Status (9)

Country Link
US (1) US3768581A (ro)
JP (1) JPS5318963B1 (ro)
CA (1) CA967945A (ro)
CH (1) CH552126A (ro)
DE (1) DE2220455C3 (ro)
FR (1) FR2135053B1 (ro)
GB (1) GB1394115A (ro)
IT (1) IT954958B (ro)
RO (1) RO64710A (ro)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871488A (en) * 1974-02-13 1975-03-18 Daniel R Sabre Rock drilling
US4073354A (en) * 1976-11-26 1978-02-14 Christensen, Inc. Earth-boring drill bits
FR2385883A1 (fr) * 1977-03-31 1978-10-27 Petroles Cie Francaise Outil de forage a haut rendement a attaque rapide de la carotte
US4098363A (en) * 1977-04-25 1978-07-04 Christensen, Inc. Diamond drilling bit for soft and medium hard formations
GB2123881B (en) * 1982-07-20 1985-11-13 Sumitomo Metal Mining Co Well drilling bit
FR2538442B1 (fr) * 1982-12-23 1986-02-28 Charbonnages De France Taillant pour foration rotative assistee par jet
US5373900A (en) 1988-04-15 1994-12-20 Baker Hughes Incorporated Downhole milling tool
US4719979A (en) * 1986-03-24 1988-01-19 Smith International, Inc. Expendable diamond drag bit
US4813500A (en) * 1987-10-19 1989-03-21 Smith International, Inc. Expendable diamond drag bit
US5025873A (en) * 1989-09-29 1991-06-25 Baker Hughes Incorporated Self-renewing multi-element cutting structure for rotary drag bit
FI103430B (fi) * 1994-10-05 1999-06-30 Valto Ilomaeki Poralaite ja menetelmä reiän poraamiseksi useaan erilaatuiseen maaperä än
US8327956B2 (en) * 2008-12-19 2012-12-11 Varel International, Ind., L.P. Multi-set PDC drill bit and method
CN102704853B (zh) * 2012-06-21 2015-07-15 四川深远石油钻井工具股份有限公司 钻进比压可控的模块切削齿
GB2579514B (en) 2013-06-06 2020-12-16 Milwaukee Electric Tool Corp Step drill bit
US11208847B2 (en) * 2017-05-05 2021-12-28 Schlumberger Technology Corporation Stepped downhole tools and methods of use
US11273501B2 (en) 2018-04-26 2022-03-15 Milwaukee Electric Tool Corporation Step drill bit
US20210363831A1 (en) * 2020-05-07 2021-11-25 Kenneth Layton STARR System and Method for A Drill Bit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE914723C (de) * 1949-02-03 1954-07-08 Wallram Hartmetall Bohrer fuer Gesteinsdrehbohrmaschinen
US2607562A (en) * 1951-03-19 1952-08-19 Phipps Orville Self-piloted rotary drill bit
US2894726A (en) * 1956-04-10 1959-07-14 Earl M Weaver Drilling bit
US3127945A (en) * 1960-03-02 1964-04-07 Jersey Prod Res Co Drag bit
US3135341A (en) * 1960-10-04 1964-06-02 Christensen Diamond Prod Co Diamond drill bits
FR1282700A (fr) * 1960-12-16 1962-01-27 Aquitaine Petrole Perfectionnements aux outils de forage à diamants
FR2029963A5 (ro) * 1969-03-19 1970-10-23 Petroles Cie Francaise
US3599736A (en) * 1970-05-18 1971-08-17 American Coldset Corp Rotary drill bit

Also Published As

Publication number Publication date
US3768581A (en) 1973-10-30
DE2220455B2 (de) 1973-09-13
DE2220455A1 (de) 1972-11-16
GB1394115A (en) 1975-05-14
FR2135053A1 (ro) 1972-12-15
CA967945A (en) 1975-05-20
IT954958B (it) 1973-09-15
CH552126A (fr) 1974-07-31
FR2135053B1 (ro) 1974-08-19
DE2220455C3 (de) 1974-04-11
JPS5318963B1 (ro) 1978-06-17

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