MX144441A
(es)
*
|
1976-07-12 |
1981-10-15 |
Christensen Inc |
Broca mejorada para utilizarse en la perforacion de pozos
|
US4176723A
(en)
*
|
1977-11-11 |
1979-12-04 |
DTL, Incorporated |
Diamond drill bit
|
US4234048A
(en)
*
|
1978-06-12 |
1980-11-18 |
Christensen, Inc. |
Drill bits embodying impregnated segments
|
US4285410A
(en)
*
|
1979-09-10 |
1981-08-25 |
Samford Travis L |
Broach for incorporation in a drill string
|
US4293048A
(en)
*
|
1980-01-25 |
1981-10-06 |
Smith International, Inc. |
Jet dual bit
|
US4429755A
(en)
|
1981-02-25 |
1984-02-07 |
Williamson Kirk E |
Drill with polycrystalline diamond drill blanks for soft, medium-hard and hard formations
|
JPS60169003U
(ja)
*
|
1984-04-19 |
1985-11-09 |
石炭露天掘機械技術研究組合 |
ドライバ−付多片リム
|
US4602691A
(en)
*
|
1984-06-07 |
1986-07-29 |
Hughes Tool Company |
Diamond drill bit with varied cutting elements
|
USRE33757E
(en)
*
|
1984-06-07 |
1991-12-03 |
Dresser Industries, Inc. |
Diamond drill bit with varied cutting elements
|
US4667756A
(en)
*
|
1986-05-23 |
1987-05-26 |
Hughes Tool Company-Usa |
Matrix bit with extended blades
|
US5004057A
(en)
*
|
1988-01-20 |
1991-04-02 |
Eastman Christensen Company |
Drill bit with improved steerability
|
US5178222A
(en)
*
|
1991-07-11 |
1993-01-12 |
Baker Hughes Incorporated |
Drill bit having enhanced stability
|
US5439068B1
(en)
*
|
1994-08-08 |
1997-01-14 |
Dresser Ind |
Modular rotary drill bit
|
US5606895A
(en)
*
|
1994-08-08 |
1997-03-04 |
Dresser Industries, Inc. |
Method for manufacture and rebuild a rotary drill bit
|
US5595255A
(en)
*
|
1994-08-08 |
1997-01-21 |
Dresser Industries, Inc. |
Rotary cone drill bit with improved support arms
|
US5439067B1
(en)
*
|
1994-08-08 |
1997-03-04 |
Dresser Ind |
Rock bit with enhanced fluid return area
|
US5547033A
(en)
*
|
1994-12-07 |
1996-08-20 |
Dresser Industries, Inc. |
Rotary cone drill bit and method for enhanced lifting of fluids and cuttings
|
US5755297A
(en)
*
|
1994-12-07 |
1998-05-26 |
Dresser Industries, Inc. |
Rotary cone drill bit with integral stabilizers
|
US5553681A
(en)
*
|
1994-12-07 |
1996-09-10 |
Dresser Industries, Inc. |
Rotary cone drill bit with angled ramps
|
US5641029A
(en)
*
|
1995-06-06 |
1997-06-24 |
Dresser Industries, Inc. |
Rotary cone drill bit modular arm
|
AU710050B2
(en)
|
1995-08-30 |
1999-09-09 |
Drilltech Services (Asia) Pte Limited |
Friction-reducing drill pipe component
|
GB2304763B
(en)
*
|
1995-08-30 |
1999-07-14 |
Drilltech Services |
Friction-reducing drill pipe component
|
USD384084S
(en)
*
|
1995-09-12 |
1997-09-23 |
Dresser Industries, Inc. |
Rotary cone drill bit
|
US6206117B1
(en)
|
1997-04-02 |
2001-03-27 |
Baker Hughes Incorporated |
Drilling structure with non-axial gage
|
US6123160A
(en)
*
|
1997-04-02 |
2000-09-26 |
Baker Hughes Incorporated |
Drill bit with gage definition region
|
US6000482A
(en)
*
|
1997-06-04 |
1999-12-14 |
Michalski; Joseph W. |
Drilling pipe for directional boring
|
US6173797B1
(en)
|
1997-09-08 |
2001-01-16 |
Baker Hughes Incorporated |
Rotary drill bits for directional drilling employing movable cutters and tandem gage pad arrangement with active cutting elements and having up-drill capability
|
US6112836A
(en)
*
|
1997-09-08 |
2000-09-05 |
Baker Hughes Incorporated |
Rotary drill bits employing tandem gage pad arrangement
|
US6321862B1
(en)
|
1997-09-08 |
2001-11-27 |
Baker Hughes Incorporated |
Rotary drill bits for directional drilling employing tandem gage pad arrangement with cutting elements and up-drill capability
|
US6138780A
(en)
*
|
1997-09-08 |
2000-10-31 |
Baker Hughes Incorporated |
Drag bit with steel shank and tandem gage pads
|
US6006845A
(en)
*
|
1997-09-08 |
1999-12-28 |
Baker Hughes Incorporated |
Rotary drill bits for directional drilling employing tandem gage pad arrangement with reaming capability
|
US6131676A
(en)
*
|
1997-10-06 |
2000-10-17 |
Excavation Engineering Associates, Inc. |
Small disc cutter, and drill bits, cutterheads, and tunnel boring machines employing such rolling disc cutters
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US6213229B1
(en)
*
|
1998-10-13 |
2001-04-10 |
Smith International Canada Limited |
Drilling motor drill bit reaming stabilizer
|
US6269892B1
(en)
*
|
1998-12-21 |
2001-08-07 |
Dresser Industries, Inc. |
Steerable drilling system and method
|
GB9906114D0
(en)
|
1999-03-18 |
1999-05-12 |
Camco Int Uk Ltd |
A method of applying a wear-resistant layer to a surface of a downhole component
|
CA2477576C
(fr)
*
|
2002-04-23 |
2008-07-08 |
Kingdream Public Ltd. Co. |
Trepan a cone unique decale par rapport a l'axe central de celui-ci et cones composites
|
US6971459B2
(en)
*
|
2002-04-30 |
2005-12-06 |
Raney Richard C |
Stabilizing system and methods for a drill bit
|
US7395882B2
(en)
*
|
2004-02-19 |
2008-07-08 |
Baker Hughes Incorporated |
Casing and liner drilling bits
|
US7624818B2
(en)
*
|
2004-02-19 |
2009-12-01 |
Baker Hughes Incorporated |
Earth boring drill bits with casing component drill out capability and methods of use
|
US7954570B2
(en)
|
2004-02-19 |
2011-06-07 |
Baker Hughes Incorporated |
Cutting elements configured for casing component drillout and earth boring drill bits including same
|
US7497280B2
(en)
*
|
2005-01-27 |
2009-03-03 |
Baker Hughes Incorporated |
Abrasive-impregnated cutting structure having anisotropic wear resistance and drag bit including same
|
GB2424433B
(en)
*
|
2005-03-03 |
2009-06-24 |
Smith International |
Fixed cutter drill bit for abrasive applications
|
US7621351B2
(en)
*
|
2006-05-15 |
2009-11-24 |
Baker Hughes Incorporated |
Reaming tool suitable for running on casing or liner
|
WO2008097843A2
(fr)
*
|
2007-02-02 |
2008-08-14 |
Halliburton Energy Services, Inc. |
Système et procédé orientables de pièce de foret rotatif
|
US8230952B2
(en)
*
|
2007-08-01 |
2012-07-31 |
Baker Hughes Incorporated |
Sleeve structures for earth-boring tools, tools including sleeve structures and methods of forming such tools
|
US7954571B2
(en)
*
|
2007-10-02 |
2011-06-07 |
Baker Hughes Incorporated |
Cutting structures for casing component drillout and earth-boring drill bits including same
|
US20110000718A1
(en)
*
|
2009-07-02 |
2011-01-06 |
Smith International, Inc. |
Integrated cast matrix sleeve api connection bit body and method of using and manufacturing the same
|
US9080390B2
(en)
*
|
2012-01-12 |
2015-07-14 |
Baker Hughes Incorporated |
Turbine driven reaming bit with profile limiting torque fluctuation
|
US20150050083A1
(en)
*
|
2013-08-15 |
2015-02-19 |
Smith International, Inc. |
Locking ring with stabilizing blades
|
GB2539005B
(en)
*
|
2015-06-03 |
2017-12-27 |
Schlumberger Holdings |
Rotary cutting tool with angled flow channel on outward face
|
CN115450571A
(zh)
*
|
2022-10-12 |
2022-12-09 |
山东方大工程有限责任公司 |
一种煤矿挖掘用液压钻机的钻孔扶稳装置及其使用方法
|