GB2451788A - Core drill assembly with adjustable total flow area and restricted flow between outer and inner barrel assemblies - Google Patents

Core drill assembly with adjustable total flow area and restricted flow between outer and inner barrel assemblies Download PDF

Info

Publication number
GB2451788A
GB2451788A GB0821569A GB0821569A GB2451788A GB 2451788 A GB2451788 A GB 2451788A GB 0821569 A GB0821569 A GB 0821569A GB 0821569 A GB0821569 A GB 0821569A GB 2451788 A GB2451788 A GB 2451788A
Authority
GB
United Kingdom
Prior art keywords
core drill
drill assembly
inner barrel
flow area
total flow
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.)
Granted
Application number
GB0821569A
Other versions
GB0821569D0 (en
GB2451788B (en
Inventor
Bob T Wilson
Thorsten Regener
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.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
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 Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of GB0821569D0 publication Critical patent/GB0821569D0/en
Publication of GB2451788A publication Critical patent/GB2451788A/en
Application granted granted Critical
Publication of GB2451788B publication Critical patent/GB2451788B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B10/02—Core bits
    • 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
    • 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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling And Boring (AREA)

Abstract

A core drill assembly with replaceable cutting fluid nozzles permitting effective total flow area adjustment (TFA), substantial optimization of hydraulic force at the cutting face to improve rate of penetration (ROP) and core quality. At least one seal assembly to restrict drilling fluid flow while permitting mutual rotation between the core head ID and the lower shoe is disposed in an annulus defined therebetween.
GB0821569A 2006-05-15 2007-05-10 Core drill assembly with adjustable total flow area and restricted flow between outer and inner barrel assemblies Expired - Fee Related GB2451788B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US80062006P 2006-05-15 2006-05-15
US11/746,931 US20070261886A1 (en) 2006-05-15 2007-05-10 Core drill assembly with adjustable total flow area and restricted flow between outer and inner barrel assemblies
PCT/US2007/011355 WO2007136568A2 (en) 2006-05-15 2007-05-10 Core drill assembly with adjustable total flow area and restricted flow between outer and inner barrel assemblies

Publications (3)

Publication Number Publication Date
GB0821569D0 GB0821569D0 (en) 2008-12-31
GB2451788A true GB2451788A (en) 2009-02-11
GB2451788B GB2451788B (en) 2011-02-16

Family

ID=38684052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0821569A Expired - Fee Related GB2451788B (en) 2006-05-15 2007-05-10 Core drill assembly with adjustable total flow area and restricted flow between outer and inner barrel assemblies

Country Status (5)

Country Link
US (1) US20070261886A1 (en)
CA (1) CA2652563A1 (en)
GB (1) GB2451788B (en)
NO (1) NO20084841L (en)
WO (1) WO2007136568A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100051528A1 (en) * 2008-08-26 2010-03-04 Clark Filter, Inc. Seal Improvement for Lube Filter
US8201642B2 (en) * 2009-01-21 2012-06-19 Baker Hughes Incorporated Drilling assemblies including one of a counter rotating drill bit and a counter rotating reamer, methods of drilling, and methods of forming drilling assemblies
US20140166366A1 (en) * 2012-12-13 2014-06-19 Smith International, Inc. Single-trip lateral coring systems and methods
US9752411B2 (en) 2013-07-26 2017-09-05 National Oilwell DHT, L.P. Downhole activation assembly with sleeve valve and method of using same
US9494004B2 (en) 2013-12-20 2016-11-15 National Oilwell Varco, L.P. Adjustable coring assembly and method of using same
US9598911B2 (en) * 2014-05-09 2017-03-21 Baker Hughes Incorporated Coring tools and related methods
US10125553B2 (en) 2015-03-06 2018-11-13 Baker Hughes Incorporated Coring tools for managing hydraulic properties of drilling fluid and related methods
CN106014314B (en) * 2016-07-05 2018-11-20 中交第四航务工程勘察设计院有限公司 A kind of drill takes device with hydraulic rock core card
CN113175307B (en) * 2021-04-29 2022-04-15 四川大学 Rotary seal core lifting mechanism
CN116104421B (en) * 2023-04-04 2023-06-20 成都迪普金刚石钻头有限责任公司 PDC mixed-inlaid drill bit suitable for coring of hard broken stratum

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308896A (en) * 1964-08-20 1967-03-14 Homer I Henderson Drilling bit
WO1998054437A1 (en) * 1997-05-30 1998-12-03 Dresser Industries, Inc. Drill bit nozzle and method of attachment

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2013838A (en) * 1932-12-27 1935-09-10 Rowland O Pickin Roller core drilling bit
US2326435A (en) * 1940-05-24 1943-08-10 Pink T Bynum Coring apparatus
US2760758A (en) * 1952-03-07 1956-08-28 Us Industries Inc Core taking apparatus
US2870993A (en) * 1956-09-27 1959-01-27 Koebel Diamond Tool Co Core bit drilling tool
US3323604A (en) * 1964-08-28 1967-06-06 Homer I Henderson Coring drill
US3424255A (en) * 1966-11-16 1969-01-28 Gulf Research Development Co Continuous coring jet bit
US3688853A (en) * 1971-03-01 1972-09-05 William C Maurer Method and apparatus for replacing nozzles in erosion bits
US4494618A (en) * 1982-09-30 1985-01-22 Strata Bit Corporation Drill bit with self cleaning nozzle
BE1005201A4 (en) * 1991-08-28 1993-05-25 Diamant Boart Stratabit S A En Crown core.
BE1010325A3 (en) * 1996-06-05 1998-06-02 Dresser Ind Core.
BE1011502A3 (en) * 1997-10-17 1999-10-05 Dresser Ind Core.
BE1012557A3 (en) * 1999-03-15 2000-12-05 Security Dbs Core.
US7055626B2 (en) * 2002-03-15 2006-06-06 Baker Hughes Incorporated Core bit having features for controlling flow split

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308896A (en) * 1964-08-20 1967-03-14 Homer I Henderson Drilling bit
WO1998054437A1 (en) * 1997-05-30 1998-12-03 Dresser Industries, Inc. Drill bit nozzle and method of attachment

Also Published As

Publication number Publication date
NO20084841L (en) 2008-12-12
WO2007136568B1 (en) 2008-04-03
GB0821569D0 (en) 2008-12-31
GB2451788B (en) 2011-02-16
US20070261886A1 (en) 2007-11-15
CA2652563A1 (en) 2007-11-29
WO2007136568A2 (en) 2007-11-29
WO2007136568A3 (en) 2008-02-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20120510