ZA702626B - Retractable drill bits - Google Patents

Retractable drill bits

Info

Publication number
ZA702626B
ZA702626B ZA702626A ZA702626A ZA702626B ZA 702626 B ZA702626 B ZA 702626B ZA 702626 A ZA702626 A ZA 702626A ZA 702626 A ZA702626 A ZA 702626A ZA 702626 B ZA702626 B ZA 702626B
Authority
ZA
South Africa
Prior art keywords
drill bits
retractable drill
retractable
bits
drill
Prior art date
Application number
ZA702626A
Inventor
W Grill
H Link
Original Assignee
Christensen Diamond Prod Co
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 Christensen Diamond Prod Co filed Critical Christensen Diamond Prod Co
Publication of ZA702626B publication Critical patent/ZA702626B/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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
    • E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
    • E21B25/04—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe the core receiver having a core forming cutting edge or element, e.g. punch type core barrels
    • 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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable
ZA702626A 1969-10-03 1970-04-20 Retractable drill bits ZA702626B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86365969A 1969-10-03 1969-10-03

Publications (1)

Publication Number Publication Date
ZA702626B true ZA702626B (en) 1971-01-27

Family

ID=25341518

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA702626A ZA702626B (en) 1969-10-03 1970-04-20 Retractable drill bits

Country Status (5)

Country Link
US (1) US3603413A (en)
JP (1) JPS5017162B1 (en)
FR (1) FR2064116B1 (en)
GB (1) GB1279190A (en)
ZA (1) ZA702626B (en)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692126A (en) * 1971-01-29 1972-09-19 Frank C Rushing Retractable drill bit apparatus
CA1264316A (en) * 1985-07-09 1990-01-09 Andrew H. Bennett, (Deceased) Wire line core barrel
CN86107578A (en) * 1986-04-01 1987-10-21 株式会社利根钻机 The drill bit that is used for core drilling
JP2695991B2 (en) * 1993-06-16 1998-01-14 ダウン ホール テクノロジーズ プロプライエタリー リミテッド Apparatus for exchanging drilling means at work position for underground drills
US7036610B1 (en) 1994-10-14 2006-05-02 Weatherford / Lamb, Inc. Apparatus and method for completing oil and gas wells
US7100710B2 (en) 1994-10-14 2006-09-05 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7108084B2 (en) 1994-10-14 2006-09-19 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US6868906B1 (en) 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
US7013997B2 (en) 1994-10-14 2006-03-21 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7040420B2 (en) 1994-10-14 2006-05-09 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7147068B2 (en) 1994-10-14 2006-12-12 Weatherford / Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
AU124096S (en) * 1994-12-07 1995-07-14 Down Hole Tech Pty Ltd Drill bit finger
US5743344A (en) * 1995-05-18 1998-04-28 Down Hole Technologies Pty. Ltd. System for in situ replacement of cutting means for a ground drill
US6742596B2 (en) 2001-05-17 2004-06-01 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US6536520B1 (en) 2000-04-17 2003-03-25 Weatherford/Lamb, Inc. Top drive casing system
GB9815809D0 (en) 1998-07-22 1998-09-16 Appleton Robert P Casing running tool
US6216804B1 (en) 1998-07-29 2001-04-17 James T. Aumann Apparatus for recovering core samples under pressure
GB2340859A (en) 1998-08-24 2000-03-01 Weatherford Lamb Method and apparatus for facilitating the connection of tubulars using a top drive
GB2340857A (en) 1998-08-24 2000-03-01 Weatherford Lamb An apparatus for facilitating the connection of tubulars and alignment with a top drive
AUPP683898A0 (en) * 1998-10-29 1998-11-26 Dht Technologies Limited Retractable drill bit system
GB2345074A (en) 1998-12-24 2000-06-28 Weatherford Lamb Floating joint to facilitate the connection of tubulars using a top drive
GB2347441B (en) 1998-12-24 2003-03-05 Weatherford Lamb Apparatus and method for facilitating the connection of tubulars using a top drive
US6896075B2 (en) 2002-10-11 2005-05-24 Weatherford/Lamb, Inc. Apparatus and methods for drilling with casing
US6857487B2 (en) 2002-12-30 2005-02-22 Weatherford/Lamb, Inc. Drilling with concentric strings of casing
US6854533B2 (en) 2002-12-20 2005-02-15 Weatherford/Lamb, Inc. Apparatus and method for drilling with casing
CA2393754C (en) 1999-12-22 2009-10-20 Weatherford/Lamb, Inc. Drilling bit for drilling while running casing
US7325610B2 (en) 2000-04-17 2008-02-05 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
GB0010378D0 (en) 2000-04-28 2000-06-14 Bbl Downhole Tools Ltd Expandable apparatus for drift and reaming a borehole
GB2365463B (en) 2000-08-01 2005-02-16 Renovus Ltd Drilling method
GB0206227D0 (en) 2002-03-16 2002-05-01 Weatherford Lamb Bore-lining and drilling
US6994176B2 (en) 2002-07-29 2006-02-07 Weatherford/Lamb, Inc. Adjustable rotating guides for spider or elevator
US6899186B2 (en) 2002-12-13 2005-05-31 Weatherford/Lamb, Inc. Apparatus and method of drilling with casing
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
US6953096B2 (en) 2002-12-31 2005-10-11 Weatherford/Lamb, Inc. Expandable bit with secondary release device
US7128154B2 (en) 2003-01-30 2006-10-31 Weatherford/Lamb, Inc. Single-direction cementing plug
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
WO2004076804A1 (en) 2003-02-27 2004-09-10 Weatherford/Lamb Inc. Drill shoe
WO2004079147A2 (en) 2003-03-05 2004-09-16 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
GB2439427B (en) 2003-03-05 2008-02-13 Weatherford Lamb Casing running and drilling system
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7284617B2 (en) 2004-05-20 2007-10-23 Weatherford/Lamb, Inc. Casing running head
CA2538196C (en) 2005-02-28 2011-10-11 Weatherford/Lamb, Inc. Deep water drilling with casing
US7857052B2 (en) 2006-05-12 2010-12-28 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing
US8118115B2 (en) * 2008-02-22 2012-02-21 Roussy Raymond J Method and system for installing geothermal heat exchangers, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
US7891440B2 (en) * 2008-02-22 2011-02-22 Roussy Raymond J Method and system for installing geothermal transfer apparatuses with a sonic drill and a removable or retrievable drill bit
EP3358125B1 (en) * 2009-02-25 2019-10-16 Reflex Instruments Asia Pacific Pty Ltd Head assembly
WO2012125454A2 (en) 2011-03-16 2012-09-20 QCS Technologies Inc. Pressure coring assembly and method
RU2481458C2 (en) * 2011-08-02 2013-05-10 Открытое акционерное общество "Курганавторемонт" Drilling cutting breaking bit
US9879482B2 (en) 2015-03-03 2018-01-30 Lawrence L. Macha Expandable diameter drill bit
RU193807U1 (en) * 2019-08-29 2019-11-15 Общество с ограниченной ответственностью "Завод Буровых Технологий" DRILLING CUTTING OPENING BIT
RU193775U1 (en) * 2019-08-29 2019-11-14 Общество с ограниченной ответственностью "Завод Буровых Технологий" DRILLING CUTTING OPENING BIT
CN115182693B (en) * 2022-07-21 2023-06-16 西南石油大学 PDC drill bit replacing device in pit
CN116378590B (en) * 2023-04-28 2023-09-29 中国海洋大学 Drilling system for deep coring

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2208457A (en) * 1939-05-08 1940-07-16 Lester A Crancer Expansible and contractible rock drill
US2287714A (en) * 1939-11-06 1942-06-23 Clinton L Walker Drill bit
US2842343A (en) * 1954-11-19 1958-07-08 Walter L Church Retractible bit
US2979144A (en) * 1957-08-22 1961-04-11 Jersey Prod Res Co Retractable drill
US3437159A (en) * 1966-09-30 1969-04-08 Christensen Diamond Prod Co Retractable drill bits

Also Published As

Publication number Publication date
US3603413A (en) 1971-09-07
GB1279190A (en) 1972-06-28
FR2064116A1 (en) 1971-07-16
FR2064116B1 (en) 1973-11-23
JPS5017162B1 (en) 1975-06-19
DE2048519A1 (en) 1971-04-15

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