FR2045790A1 - - Google Patents

Info

Publication number
FR2045790A1
FR2045790A1 FR7020024A FR7020024A FR2045790A1 FR 2045790 A1 FR2045790 A1 FR 2045790A1 FR 7020024 A FR7020024 A FR 7020024A FR 7020024 A FR7020024 A FR 7020024A FR 2045790 A1 FR2045790 A1 FR 2045790A1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7020024A
Other languages
French (fr)
Other versions
FR2045790B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Longyear Co
Original Assignee
Longyear 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 Longyear Co filed Critical Longyear Co
Publication of FR2045790A1 publication Critical patent/FR2045790A1/fr
Application granted granted Critical
Publication of FR2045790B1 publication Critical patent/FR2045790B1/fr
Expired legal-status Critical Current

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
    • E21B25/10—Formed core retaining or severing means
    • E21B25/12—Formed core retaining or severing means of the sliding wedge type
FR707020024A 1969-06-02 1970-06-01 Expired FR2045790B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82927969A 1969-06-02 1969-06-02

Publications (2)

Publication Number Publication Date
FR2045790A1 true FR2045790A1 (en) 1971-03-05
FR2045790B1 FR2045790B1 (en) 1974-07-12

Family

ID=25254057

Family Applications (1)

Application Number Title Priority Date Filing Date
FR707020024A Expired FR2045790B1 (en) 1969-06-02 1970-06-01

Country Status (6)

Country Link
US (1) US3540537A (en)
JP (1) JPS5010521B1 (en)
BE (1) BE751275A (en)
FR (1) FR2045790B1 (en)
GB (1) GB1311108A (en)
SE (1) SE360140B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1120069A1 (en) * 1979-01-04 1984-10-23 Институт Горного Дела Со Ан Ссср Method of trenchless laying of underground communication lines and soil-taking device for performing same
US4574883A (en) * 1982-11-24 1986-03-11 Otis Engineering Corporation Well tool stopping devices, systems and methods
US4651835A (en) * 1984-10-01 1987-03-24 Eastman Christensen Company Core catcher for use with an hydraulically displaced inner tube in a coring tool
US5031708A (en) * 1990-04-20 1991-07-16 Longyear Company Cockable corebreaker apparatus
ZA93584B (en) * 1992-05-27 1993-09-01 De Beers Ind Diamond Abrasive tools.
US6216804B1 (en) 1998-07-29 2001-04-17 James T. Aumann Apparatus for recovering core samples under pressure
US8770320B2 (en) * 2009-11-03 2014-07-08 Longyear Tm, Inc. Core lifter
US9506307B2 (en) 2011-03-16 2016-11-29 Corpro Technologies Canada Ltd. High pressure coring assembly and method
JP6016419B2 (en) * 2012-04-09 2016-10-26 株式会社クリステンセン・マイカイ Core sampling device
WO2014155649A1 (en) * 2013-03-29 2014-10-02 株式会社 日立製作所 Boring device and boring method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760758A (en) * 1952-03-07 1956-08-28 Us Industries Inc Core taking apparatus
US3127943A (en) * 1962-03-05 1964-04-07 Christensen Diamond Prod Co Wire line core barrel
US3328068A (en) * 1965-11-15 1967-06-27 Joint Coal Board Lifter for rotary core drills
US3349857A (en) * 1965-07-16 1967-10-31 Exxon Production Research Co Coring apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760758A (en) * 1952-03-07 1956-08-28 Us Industries Inc Core taking apparatus
US3127943A (en) * 1962-03-05 1964-04-07 Christensen Diamond Prod Co Wire line core barrel
US3349857A (en) * 1965-07-16 1967-10-31 Exxon Production Research Co Coring apparatus
US3328068A (en) * 1965-11-15 1967-06-27 Joint Coal Board Lifter for rotary core drills

Also Published As

Publication number Publication date
FR2045790B1 (en) 1974-07-12
JPS5010521B1 (en) 1975-04-22
DE2026335A1 (en) 1970-12-10
US3540537A (en) 1970-11-17
SE360140B (en) 1973-09-17
GB1311108A (en) 1973-03-21
BE751275A (en) 1970-12-01

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Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name
ST Notification of lapse