GB1222526A - Core barrel inner tube lifter - Google Patents

Core barrel inner tube lifter

Info

Publication number
GB1222526A
GB1222526A GB919768A GB919768A GB1222526A GB 1222526 A GB1222526 A GB 1222526A GB 919768 A GB919768 A GB 919768A GB 919768 A GB919768 A GB 919768A GB 1222526 A GB1222526 A GB 1222526A
Authority
GB
United Kingdom
Prior art keywords
inner tube
core barrel
barrel inner
core
tube lifter
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
GB919768A
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.)
MINDRILL Ltd
Original Assignee
MINDRILL Ltd
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 MINDRILL Ltd filed Critical MINDRILL Ltd
Publication of GB1222526A publication Critical patent/GB1222526A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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 or core extractors
    • E21B25/10—Formed core retaining or severing means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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 or core extractors

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

1,222,526. Drilling. MINDRILL Ltd. 26 Feb., 1968 [2 March, 1967], No. 9197/68. Heading E1F. The core barrel inner tube for example as in Specification 1,160,409-is raised within the drill stem in order to allow a core lifter to break the core at the base, by a ball 37 being dropped or pumped down the drill stem to close a passage 5, 28 leading to the drill bit thus causing the drilling fluid to be applied against surface 17 of piston 16 which is connected to the inner tube.
GB919768A 1967-03-02 1968-02-26 Core barrel inner tube lifter Expired GB1222526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU18441/67A AU408431B2 (en) 1967-03-02 1967-03-02 Core barrel inner tube lifter

Publications (1)

Publication Number Publication Date
GB1222526A true GB1222526A (en) 1971-02-17

Family

ID=3708128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB919768A Expired GB1222526A (en) 1967-03-02 1968-02-26 Core barrel inner tube lifter

Country Status (2)

Country Link
AU (1) AU408431B2 (en)
GB (1) GB1222526A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134586A1 (en) * 1983-09-09 1985-03-20 Eastman Christensen Company Hydraulic lift inner barrel in a drill string coring tool
US4605075A (en) * 1984-08-31 1986-08-12 Norton Christensen, Inc. Shrouded core catcher
WO1997026438A1 (en) * 1996-01-15 1997-07-24 Baroid Technology, Inc. Core sampler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115478803B (en) * 2021-06-16 2024-02-02 中国石油天然气集团有限公司 Drilling and milling tool for water hole grinding shoes and continuous oil pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134586A1 (en) * 1983-09-09 1985-03-20 Eastman Christensen Company Hydraulic lift inner barrel in a drill string coring tool
US4605075A (en) * 1984-08-31 1986-08-12 Norton Christensen, Inc. Shrouded core catcher
WO1997026438A1 (en) * 1996-01-15 1997-07-24 Baroid Technology, Inc. Core sampler
BE1009965A3 (en) * 1996-01-15 1997-11-04 Baroid Technology Inc Core.
US6158534A (en) * 1996-01-15 2000-12-12 Baroid Technology, Inc. Core sampler

Also Published As

Publication number Publication date
AU408431B2 (en) 1970-11-25
AU1844167A (en) 1969-09-25

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