WO2008042258A3 - Bit assembly for down-hole drills - Google Patents
Bit assembly for down-hole drills Download PDFInfo
- 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
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- 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
- E21B10/36—Percussion drill 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; 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
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid 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.
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)
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)
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)
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 |
-
2006
- 2006-09-28 US US11/529,036 patent/US20080078584A1/en not_active Abandoned
-
2007
- 2007-09-28 WO PCT/US2007/020928 patent/WO2008042258A2/en active Application Filing
Patent Citations (8)
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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