GB1311108A - Slotted core lifter apparatus - Google Patents

Slotted core lifter apparatus

Info

Publication number
GB1311108A
GB1311108A GB2549470A GB2549470A GB1311108A GB 1311108 A GB1311108 A GB 1311108A GB 2549470 A GB2549470 A GB 2549470A GB 2549470 A GB2549470 A GB 2549470A GB 1311108 A GB1311108 A GB 1311108A
Authority
GB
United Kingdom
Prior art keywords
core lifter
slotted core
lifter apparatus
core
slotted
Prior art date
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.)
Expired
Application number
GB2549470A
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.)
EJ Longyear Co
Original Assignee
EJ 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 EJ Longyear Co filed Critical EJ Longyear Co
Publication of GB1311108A publication Critical patent/GB1311108A/en
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

Abstract

1311108 Boring earth &c E J LONGYEAR CO 27 May 1970 [2 June 1969] 25494/70 Heading E1F In a core bit having an inner tube 17 carrying a core lifter case 18, the core lifter 19 comprises a split ring having slots 30, 31. (For Figure see next column)
GB2549470A 1969-06-02 1970-05-27 Slotted core lifter apparatus Expired GB1311108A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1311108A true GB1311108A (en) 1973-03-21

Family

ID=25254057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2549470A Expired GB1311108A (en) 1969-06-02 1970-05-27 Slotted core lifter apparatus

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

Family Cites Families (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
FR2045790A1 (en) 1971-03-05
BE751275A (en) 1970-12-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee