GB715905A - Improvements relating to core drills - Google Patents

Improvements relating to core drills

Info

Publication number
GB715905A
GB715905A GB2921751A GB2921751A GB715905A GB 715905 A GB715905 A GB 715905A GB 2921751 A GB2921751 A GB 2921751A GB 2921751 A GB2921751 A GB 2921751A GB 715905 A GB715905 A GB 715905A
Authority
GB
United Kingdom
Prior art keywords
barrel
core
connector
annular
blades
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
GB2921751A
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.)
English Drilling Equipment Co Ltd
Original Assignee
English Drilling Equipment Co 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 English Drilling Equipment Co Ltd filed Critical English Drilling Equipment Co Ltd
Priority to GB2921751A priority Critical patent/GB715905A/en
Publication of GB715905A publication Critical patent/GB715905A/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
    • 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
    • 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
    • E21B10/00—Drill bits
    • E21B10/02—Core bits

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)

Abstract

715,905. Earth-boring core-drills. WALMSLEY F., PROCTER, R. H., and ENGLISH DRILLING EQUIPMENT CO., Ltd. Nov. 6, 1952 [Dec. 13, 1951], No. 29217/51. Class 85. A core drill comprises a barrel 1 threaded to a connector 6 screwed to a drill pipe. the connector having an internallythreaded axial extension 11 into which is screwed a core barrel 13. The core barrel is formed in two parts which are secured together by a bolt 16, and the tapered end 15 of the barrel passes through an annular apertured plate 5 secured on the barrel 1 to abut correspondingly tapered surfaces 14 formed on the blades 2 of the barrel 1. In order to remove the drillings without interference with the core being cut, compressed air is passed from the drill pipe through passages 7 and 10 in the connector 6 and down the annular passage 17 between the barrels 1 and 13 to be discharged in the vicinity of the blades 2 through ports 18 in the annular plate 5.
GB2921751A 1951-12-13 1951-12-13 Improvements relating to core drills Expired GB715905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2921751A GB715905A (en) 1951-12-13 1951-12-13 Improvements relating to core drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2921751A GB715905A (en) 1951-12-13 1951-12-13 Improvements relating to core drills

Publications (1)

Publication Number Publication Date
GB715905A true GB715905A (en) 1954-09-22

Family

ID=10288007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2921751A Expired GB715905A (en) 1951-12-13 1951-12-13 Improvements relating to core drills

Country Status (1)

Country Link
GB (1) GB715905A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187774A (en) * 1986-03-11 1987-09-16 Soletanche Core-drilling tool
EP2288778A4 (en) * 2008-05-13 2015-10-28 Longyear Tm Inc Sonic drill bit for core sampling
CN107916905A (en) * 2018-01-02 2018-04-17 河南理工大学 Reciprocating coring method and device for rock stratum sampling
CN113547648A (en) * 2021-07-14 2021-10-26 嘉祥洪润电碳有限公司 Step type air cooling processing graphite deep hole combination device
CN114183079A (en) * 2021-11-15 2022-03-15 河南黄河旋风股份有限公司 Drill barrel with water adding and slag discharging functions
CN118669076A (en) * 2024-08-21 2024-09-20 成都理工大学 Device for extracting core from drilling crushed rock aiming at loose anhydrous environment of moon

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187774A (en) * 1986-03-11 1987-09-16 Soletanche Core-drilling tool
FR2595751A1 (en) * 1986-03-11 1987-09-18 Soletanche CARROT TOOL, IN PARTICULAR FOR AIR CARROT
GB2187774B (en) * 1986-03-11 1989-11-15 Soletanche Core-drilling tool
EP2288778A4 (en) * 2008-05-13 2015-10-28 Longyear Tm Inc Sonic drill bit for core sampling
CN107916905A (en) * 2018-01-02 2018-04-17 河南理工大学 Reciprocating coring method and device for rock stratum sampling
CN113547648A (en) * 2021-07-14 2021-10-26 嘉祥洪润电碳有限公司 Step type air cooling processing graphite deep hole combination device
CN114183079A (en) * 2021-11-15 2022-03-15 河南黄河旋风股份有限公司 Drill barrel with water adding and slag discharging functions
CN118669076A (en) * 2024-08-21 2024-09-20 成都理工大学 Device for extracting core from drilling crushed rock aiming at loose anhydrous environment of moon

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