US2073263A - Method and apparatus for taking cores from a borehole - Google Patents

Method and apparatus for taking cores from a borehole Download PDF

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Publication number
US2073263A
US2073263A US13728A US1372835A US2073263A US 2073263 A US2073263 A US 2073263A US 13728 A US13728 A US 13728A US 1372835 A US1372835 A US 1372835A US 2073263 A US2073263 A US 2073263A
Authority
US
United States
Prior art keywords
core
drill
barrel
drill pipe
head
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 - Lifetime
Application number
US13728A
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English (en)
Inventor
Henri M Hohmann
Hendrik N L C E C De Wilde
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.)
Shell Development Co
Original Assignee
Shell Development 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 Shell Development Co filed Critical Shell Development Co
Application granted granted Critical
Publication of US2073263A publication Critical patent/US2073263A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe

Definitions

  • the invention provides a new method for drawing cores in hush-drilling and drilling-apparatus with which the method can be applied.
  • the stream of ilush liquid is utilized for bringing up the core.
  • the stream of flush liquid is introduced into the well round the outside of the drill pipe. The pressure exerted by the liquid breaks the connection between the core and the bit head', after which the core is carried up with the flush liquid ⁇ in the drill pipe.
  • a downwardly opening valve which in the drawings is designed as an annular valve ld, which is pressed upwardly against the seat Ei-designed as a double ring-by the helical spring ll.
  • iiush liquid is pumped down through the drill pipe in the usual way, the liquid pressure keeping valve 5 closed and opening valve lil against the pressure of spring it, so that the ush'liquidcan pass out through the passages l2 into the hole, in which it rises.
  • a core enters the core barrel d, the liquid displaced by the core escaping from the core barrel through valve 5.
  • a design can be chosen in which the core barrel is brought up together with the core by the action of the :dush liquid.
  • a construction is shown in Figs. 2 and 3, the former of which is subdivided into two parts joining up together.
  • the core barrel 4 is not permanently connected to the bit head and the drill pipe, but is detachably arranged within a guide tube 20 connected to the drill pipe, said guide tube having a somewhatjunnel-shaped enlargement at the top. Below this enlargement tion as to allow a core to pass out of the core the core-barrel is sealed on the outside within the barrel in upward direction, and valve means guide tube.
  • containing the usual ball valve 22 allowing the flush liquid contained in the core barrel to escape when a core enters the barrel.
  • carries also the mechanism holding the core barrel in place within the drill pipe during drilll0 ing.
  • the head within a slot formed between two cheeks 24 carries a pawl 28 turning about a bolt 25, a spring 23 tending to rotate the pawl in a counter-clockwise direction.
  • the pawl has a cam or lip 21 which engages behind a collar 29 of the intermediate piece 28 forming part of the drill pipe, so that upward movement of the core barrel is prevented.
  • a member 32 which is lowered into the drill pipe and moves downwards under the infiuence of its weight, if necessary assisted by the pumping pressure.
  • Fig. 2 shows this member, constructed as a pipe closed at the top and equippedwith a valve 34 opening upwards for passage of the flush liquid,
  • a newcore barrel may be thrown or pumped down through the drill pipe and will be secured in place by the pawl 2i as soon as it has reached the proper position.
  • the members for securing and releasing the core barrel may, of course, be constructed in a manner dierent from that described and illustrated.
  • the member 32 may be equipped at the top with a spring-loaded valve 35 opening downwards, which enables cleaning of the member 32, if clogged up internally, by means of a downward now of flush liquid.
  • a core drill comprising a core barrel of such shape and being provided at itsupper end with upwardly opening valve means of such construcof the drill outwardly to the space around the drill.
  • Core drill comprising a drill head with drilling members, a. core barrel connected to the drill head, a passage for drilling fluid situated around said core barrel and issuing at the outside of the head in the vicinity of said drilling members, and a downwardly opening check valve situated within said fluid passage.
  • Core drill comprising a drill head, a core.
  • Core drill comprising a drill pipe, a drill head connected to said drill pipe, a cylindrical open-ended guide tube with flaring upper end connected at its lower end to said drill head, means for detachably holding a core barrel within said guide tube, fluid passages extending through the drilling head and communicating at their inner ends with a passage formed between said drill pipe and said guide tube, and valve means arranged within the latter passage and allowing a passing of fluid only in a direction towards the iiuid passages in the drilling head.
  • a method for taking cores from a drill hole comprising drilling a core by means of a core drill attached to a drill pipe, said core drill comprising a core barrel, supplying a drilling fiuid to the core drill through the drill pipe and a valved passage outside the core barrel and removing said fluid from the hole outside the drill pipe, receiving the core drilled in the core barrel, reversing the circulation of the drilling fluid, closing the valved passage outside the core barrel to the flow of said fluid, forcing the core from the core barrel and lifting it to the surface through the drill pipe by the pressure of the drilling fluid applied to the bottom of the core.
  • a core drill comprising a drill pipe, a drill head, a core barrel, means detachably locking the core barrel with the drill head, said means being adapted to be released by the impact of a body dropped into the drill pipe, a vfluid passage between the core barrel and the core head, and valve means in said passage allowing the uid to pass only from the interior of the drill outwardly to the space around the drill.

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)
  • Earth Drilling (AREA)
US13728A 1935-01-23 1935-03-29 Method and apparatus for taking cores from a borehole Expired - Lifetime US2073263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL451825X 1935-01-23

Publications (1)

Publication Number Publication Date
US2073263A true US2073263A (en) 1937-03-09

Family

ID=19786315

Family Applications (1)

Application Number Title Priority Date Filing Date
US13728A Expired - Lifetime US2073263A (en) 1935-01-23 1935-03-29 Method and apparatus for taking cores from a borehole

Country Status (3)

Country Link
US (1) US2073263A (en, 2012)
GB (1) GB451825A (en, 2012)
NL (1) NL42651C (en, 2012)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553032A (en) * 1948-10-11 1951-05-15 Security Engineering Co Inc Coring bit
US2783969A (en) * 1953-04-14 1957-03-05 Int Minerals & Chem Corp Method and apparatus for cutting cores
BE1011199A3 (fr) * 1997-06-09 1999-06-01 Dresser Ind Carottier.
US6820703B1 (en) * 1999-08-24 2004-11-23 Atlas Copco Craelius Ab Locking device for a wire line core drilling system and a method for core drilling
US20090255679A1 (en) * 2008-04-04 2009-10-15 Corpro Systems Limited Valve, core sampling apparatus and method
US9151129B2 (en) 2011-08-01 2015-10-06 Groupe Fordia Inc. Core barrel assembly including a valve
CN106761513A (zh) * 2016-12-15 2017-05-31 中国地质科学院勘探技术研究所 一种绳索打捞式保压取心钻具
CN109667557A (zh) * 2019-02-28 2019-04-23 湖南科技大学 一种用于破碎煤岩体试样的标准取芯装置及施工方法
CN118911596A (zh) * 2024-10-10 2024-11-08 山东省煤炭技术服务有限公司 一种地质工程勘察研究的勘察设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102155176A (zh) * 2011-03-04 2011-08-17 中南大学 一种隔水岩土取心钻具
CN104806177B (zh) * 2015-03-03 2017-08-25 铁道第三勘察设计院集团有限公司 一种岩心管总成

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553032A (en) * 1948-10-11 1951-05-15 Security Engineering Co Inc Coring bit
US2783969A (en) * 1953-04-14 1957-03-05 Int Minerals & Chem Corp Method and apparatus for cutting cores
BE1011199A3 (fr) * 1997-06-09 1999-06-01 Dresser Ind Carottier.
US6820703B1 (en) * 1999-08-24 2004-11-23 Atlas Copco Craelius Ab Locking device for a wire line core drilling system and a method for core drilling
US20090255679A1 (en) * 2008-04-04 2009-10-15 Corpro Systems Limited Valve, core sampling apparatus and method
US8122976B2 (en) * 2008-04-04 2012-02-28 Corpo Systems Limited Valve, core sampling apparatus and method
EP2107210A3 (en) * 2008-04-04 2012-03-28 Corpro Systems Limited Valve, core sampling apparatus and method
US9151129B2 (en) 2011-08-01 2015-10-06 Groupe Fordia Inc. Core barrel assembly including a valve
CN106761513A (zh) * 2016-12-15 2017-05-31 中国地质科学院勘探技术研究所 一种绳索打捞式保压取心钻具
CN106761513B (zh) * 2016-12-15 2019-04-12 中国地质科学院勘探技术研究所 一种绳索打捞式保压取心钻具
CN109667557A (zh) * 2019-02-28 2019-04-23 湖南科技大学 一种用于破碎煤岩体试样的标准取芯装置及施工方法
CN118911596A (zh) * 2024-10-10 2024-11-08 山东省煤炭技术服务有限公司 一种地质工程勘察研究的勘察设备

Also Published As

Publication number Publication date
NL42651C (en, 2012)
GB451825A (en) 1936-08-12

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