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WO2008042258A3 - Bit assembly for down-hole drills - Google Patents

Bit assembly for down-hole drills Download PDF

Info

Publication number
WO2008042258A3
WO2008042258A3 PCT/US2007/020928 US2007020928W WO2008042258A3 WO 2008042258 A3 WO2008042258 A3 WO 2008042258A3 US 2007020928 W US2007020928 W US 2007020928W WO 2008042258 A3 WO2008042258 A3 WO 2008042258A3
Authority
WO
WIPO (PCT)
Prior art keywords
bit
chuck
retainer
casing
hammer
Prior art date
Application number
PCT/US2007/020928
Other languages
French (fr)
Other versions
WO2008042258A2 (en
Inventor
Leland H Lyon
Original Assignee
Atlas Copco Drilling Solutions
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 Atlas Copco Drilling Solutions filed Critical Atlas Copco Drilling Solutions
Publication of WO2008042258A2 publication Critical patent/WO2008042258A2/en
Publication of WO2008042258A3 publication Critical patent/WO2008042258A3/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/20Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/36Percussion drill bits
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/06Down-hole impacting means, e.g. hammers
    • E21B4/14Fluid operated hammers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

A bit assembly is for a drill having a casing, a central axis and a hammer movably disposed within the casing. The bit assembly includes a chuck with a tubular body having first and second ends, the first end being connected with the casing such that the second end is spaced axially therefrom, and one or more openings extending generally axially from the second end toward the first end. A bit includes a body with a tubular portion having a cavity and one or more axial lugs, the lug(s) being disposeable within the chuck opening(s). A retainer is coupled with the chuck, disposeable within the bit cavity and engageable with the bit lug(s) so as to releasably couple the bit with the chuck. The retainer is preferably a deflectable ring sized to receive a portion of the hammer, such that the hammer prevents disengagement of the retainer from the bit.
PCT/US2007/020928 2006-09-28 2007-09-28 Bit assembly for down-hole drills WO2008042258A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/529,036 US20080078584A1 (en) 2006-09-28 2006-09-28 Bit assembly for down-hole drills
US11/529,036 2006-09-28

Publications (2)

Publication Number Publication Date
WO2008042258A2 WO2008042258A2 (en) 2008-04-10
WO2008042258A3 true WO2008042258A3 (en) 2008-07-24

Family

ID=39260019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/020928 WO2008042258A2 (en) 2006-09-28 2007-09-28 Bit assembly for down-hole drills

Country Status (2)

Country Link
US (1) US20080078584A1 (en)
WO (1) WO2008042258A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8353369B2 (en) * 2008-08-06 2013-01-15 Atlas Copco Secoroc, LLC Percussion assisted rotary earth bit and method of operating the same
US8312944B2 (en) * 2009-01-28 2012-11-20 Smith International, Inc. Percussion hammer bit with a driver sub including a guide sleeve portion
US8844656B2 (en) * 2009-03-16 2014-09-30 Atlas Copco Secoroc Llc Seal assembly for a rotary earth bit
US20100263932A1 (en) * 2009-04-16 2010-10-21 Dale Richard Wolfer Bit retainer assembly for a down-hole drill
US8100200B2 (en) * 2009-04-16 2012-01-24 Atlas Copco Secoroc Llc Chuck assembly for a down-hole drill
US8550189B2 (en) 2009-12-31 2013-10-08 Atlas Copco Secoroc Llc Drive pin support
EP2799659A1 (en) * 2013-05-03 2014-11-05 Sandvik Intellectual Property AB Percussive rock drill bit
CA2909986C (en) * 2013-05-17 2021-04-06 Atlas Copco Secoroc Ab Device and system for percussion rock drilling
EP2921639A1 (en) 2014-03-18 2015-09-23 Sandvik Intellectual Property AB Percussive drill bit with multiple sets of front cutting inserts
CN105350917B (en) * 2015-12-04 2017-09-22 吉林大学 A kind of spiral flow strong pumping formula reverse circulation core bit
US10760354B2 (en) * 2016-06-30 2020-09-01 The Charles Machine Works, Inc. Collar with stepped retaining ring groove
US10487595B2 (en) * 2016-06-30 2019-11-26 The Charles Machine Works, Inc. Collar with stepped retaining ring groove
US11053747B2 (en) * 2017-08-02 2021-07-06 The Charles Machine Works, Inc. Insert for use with dual-member pipe joint
CN107558930A (en) * 2017-10-19 2018-01-09 西南石油大学 A kind of PDC impact head drill bits with pre-impact effect
US11643879B2 (en) * 2021-08-03 2023-05-09 Halliburton Energy Services, Inc. Nested drill bit assembly for drilling with casing
CN114909095A (en) * 2022-05-18 2022-08-16 重庆寅翔智能科技有限公司 Deep hole rapid sampling equipment and production process thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1426637A (en) * 1921-11-21 1922-08-22 Arthur L Hawkesworth Drill
US2550330A (en) * 1948-06-14 1951-04-24 William E Coyle Drop collar right angle drill for wells
US4591004A (en) * 1983-05-18 1986-05-27 Gien Bernard L Pneumatic percussion machine
US4621818A (en) * 1984-05-08 1986-11-11 Roehm Guenter H Hammer drill spindle and chuck assembly
US5435401A (en) * 1992-01-22 1995-07-25 Sandvik Ab Down-the-hole rock drill
US6039129A (en) * 1995-08-28 2000-03-21 Dht Technologies, Ltd. Locking system for a firing mechanism of a downhole tool
US6047778A (en) * 1996-09-30 2000-04-11 Dresser-Rand Company Percussion drill assembly
US6502650B1 (en) * 2000-11-15 2003-01-07 Sandvik Ab Percussive down-the-hole hammer for rock drilling, and a drill bit used therein

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT345759B (en) * 1975-03-22 1978-10-10 Walter Gmbh Co H P DEEPHOLE DRILL
US5390749A (en) * 1994-01-31 1995-02-21 Ingersoll-Rand Company Apparatus for positioning a split retaining ring in a down-hole percussive drill
WO1999057412A1 (en) * 1998-05-05 1999-11-11 Gien Bernard L Down-hole hammer drill having reverse circulation and sample tube
JP4901059B2 (en) * 2000-09-22 2012-03-21 アトラス・コプコ・セコロツク・エル・エル・シー Quick release drill bit for downhole drills
US6698537B2 (en) * 2001-12-05 2004-03-02 Numa Tool Company Bit retention system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1426637A (en) * 1921-11-21 1922-08-22 Arthur L Hawkesworth Drill
US2550330A (en) * 1948-06-14 1951-04-24 William E Coyle Drop collar right angle drill for wells
US4591004A (en) * 1983-05-18 1986-05-27 Gien Bernard L Pneumatic percussion machine
US4621818A (en) * 1984-05-08 1986-11-11 Roehm Guenter H Hammer drill spindle and chuck assembly
US5435401A (en) * 1992-01-22 1995-07-25 Sandvik Ab Down-the-hole rock drill
US6039129A (en) * 1995-08-28 2000-03-21 Dht Technologies, Ltd. Locking system for a firing mechanism of a downhole tool
US6047778A (en) * 1996-09-30 2000-04-11 Dresser-Rand Company Percussion drill assembly
US6502650B1 (en) * 2000-11-15 2003-01-07 Sandvik Ab Percussive down-the-hole hammer for rock drilling, and a drill bit used therein

Also Published As

Publication number Publication date
US20080078584A1 (en) 2008-04-03
WO2008042258A2 (en) 2008-04-10

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