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WO2007136568A3 - 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
WO2007136568A3
WO2007136568A3 PCT/US2007/011355 US2007011355W WO2007136568A3 WO 2007136568 A3 WO2007136568 A3 WO 2007136568A3 US 2007011355 W US2007011355 W US 2007011355W WO 2007136568 A3 WO2007136568 A3 WO 2007136568A3
Authority
WO
WIPO (PCT)
Prior art keywords
core drill
drill assembly
inner barrel
flow area
total flow
Prior art date
Application number
PCT/US2007/011355
Other languages
French (fr)
Other versions
WO2007136568A2 (en
WO2007136568B1 (en
Inventor
Bob T Wilson
Thorsten Regener
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
Priority to GB0821569A priority Critical patent/GB2451788B/en
Priority to CA002652563A priority patent/CA2652563A1/en
Publication of WO2007136568A2 publication Critical patent/WO2007136568A2/en
Publication of WO2007136568A3 publication Critical patent/WO2007136568A3/en
Publication of WO2007136568B1 publication Critical patent/WO2007136568B1/en
Priority to NO20084841A priority patent/NO20084841L/en

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)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (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.
PCT/US2007/011355 2006-05-15 2007-05-10 Core drill assembly with adjustable total flow area and restricted flow between outer and inner barrel assemblies WO2007136568A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0821569A 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
CA002652563A CA2652563A1 (en) 2006-05-15 2007-05-10 Core drill assembly with adjustable total flow area and restricted flow between outer and inner barrel assemblies
NO20084841A NO20084841L (en) 2006-05-15 2008-11-18 Core drilling device with adjustable total flow area and limited flow between outer and inner cylinder assemblies

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US80062006P 2006-05-15 2006-05-15
US60/800,620 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
US11/746,931 2007-05-10

Publications (3)

Publication Number Publication Date
WO2007136568A2 WO2007136568A2 (en) 2007-11-29
WO2007136568A3 true WO2007136568A3 (en) 2008-02-21
WO2007136568B1 WO2007136568B1 (en) 2008-04-03

Family

ID=38684052

Family Applications (1)

Application Number Title Priority Date Filing Date
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

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106014314A (en) * 2016-07-05 2016-10-12 中交第四航务工程勘察设计院有限公司 Hydraulic rock core lifting device for exploratory boring

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
US9512680B2 (en) * 2012-12-13 2016-12-06 Smith International, Inc. Coring bit to whipstock systems and methods
CA2857841C (en) 2013-07-26 2018-03-13 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
CN113175307B (en) * 2021-04-29 2022-04-15 四川大学 Rotary seal core lifting mechanism
CN115680650A (en) * 2022-11-28 2023-02-03 中冶成都勘察研究总院有限公司 Drilling method for rapidly acquiring core information
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 (5)

* 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
US5460230A (en) * 1991-08-28 1995-10-24 Baroid Technology, Inc. Core bit
WO1998054437A1 (en) * 1997-05-30 1998-12-03 Dresser Industries, Inc. Drill bit nozzle and method of attachment
US6145604A (en) * 1996-06-05 2000-11-14 Dresser Industries, Inc. Core Machine
GB2386388A (en) * 2002-03-15 2003-09-17 Baker Hughes Inc Core bit having features for controlling flow split

Family Cites Families (10)

* 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
BE1011502A3 (en) * 1997-10-17 1999-10-05 Dresser Ind Core.
BE1012557A3 (en) * 1999-03-15 2000-12-05 Security Dbs Core.

Patent Citations (5)

* 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
US5460230A (en) * 1991-08-28 1995-10-24 Baroid Technology, Inc. Core bit
US6145604A (en) * 1996-06-05 2000-11-14 Dresser Industries, Inc. Core Machine
WO1998054437A1 (en) * 1997-05-30 1998-12-03 Dresser Industries, Inc. Drill bit nozzle and method of attachment
GB2386388A (en) * 2002-03-15 2003-09-17 Baker Hughes Inc Core bit having features for controlling flow split

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CLYDESDALE G ET AL: "CORE BIT DESIGN REDUCES MUD INVASION, IMPROVES ROP", OIL AND GAS JOURNAL, PENNWELL, HOUSTON, TX, US, vol. 92, no. 32, 8 August 1994 (1994-08-08), pages 51 - 57, XP000474183, ISSN: 0030-1388 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106014314A (en) * 2016-07-05 2016-10-12 中交第四航务工程勘察设计院有限公司 Hydraulic rock core lifting device for exploratory boring

Also Published As

Publication number Publication date
US20070261886A1 (en) 2007-11-15
CA2652563A1 (en) 2007-11-29
GB2451788A (en) 2009-02-11
WO2007136568A2 (en) 2007-11-29
WO2007136568B1 (en) 2008-04-03
GB2451788B (en) 2011-02-16
GB0821569D0 (en) 2008-12-31
NO20084841L (en) 2008-12-12

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