US4316515A
(en)
*
|
1979-05-29 |
1982-02-23 |
Hughes Tool Company |
Shaft drill bit with improved cutter bearing and seal arrangement and cutter insert arrangement
|
US4441566A
(en)
*
|
1980-06-23 |
1984-04-10 |
Hughes Tool Company |
Drill bit with dispersed cutter inserts
|
CA1154752A
(en)
*
|
1980-06-23 |
1983-10-04 |
Rudolf C.O. Pessier |
Drill bit with dispersed cutter inserts
|
SE457656B
(sv)
*
|
1984-06-18 |
1989-01-16 |
Santrade Ltd |
Borrkrona innefattande en roterande skaerrulle och borrhuvud innefattande saadan borrkrona
|
DE3539717C2
(de)
*
|
1984-06-29 |
1996-08-08 |
Spiral Drilling Systems Inc |
Rollenmeißel
|
US5027913A
(en)
*
|
1990-04-12 |
1991-07-02 |
Smith International, Inc. |
Insert attack angle for roller cone rock bits
|
US5224560A
(en)
*
|
1990-10-30 |
1993-07-06 |
Modular Engineering |
Modular drill bit
|
US5467836A
(en)
*
|
1992-01-31 |
1995-11-21 |
Baker Hughes Incorporated |
Fixed cutter bit with shear cutting gage
|
US6390210B1
(en)
*
|
1996-04-10 |
2002-05-21 |
Smith International, Inc. |
Rolling cone bit with gage and off-gage cutter elements positioned to separate sidewall and bottom hole cutting duty
|
US7334652B2
(en)
*
|
1998-08-31 |
2008-02-26 |
Halliburton Energy Services, Inc. |
Roller cone drill bits with enhanced cutting elements and cutting structures
|
US20040140130A1
(en)
*
|
1998-08-31 |
2004-07-22 |
Halliburton Energy Services, Inc., A Delaware Corporation |
Roller-cone bits, systems, drilling methods, and design methods with optimization of tooth orientation
|
US6412577B1
(en)
*
|
1998-08-31 |
2002-07-02 |
Halliburton Energy Services Inc. |
Roller-cone bits, systems, drilling methods, and design methods with optimization of tooth orientation
|
US20040230413A1
(en)
*
|
1998-08-31 |
2004-11-18 |
Shilin Chen |
Roller cone bit design using multi-objective optimization
|
US20030051917A1
(en)
*
|
1998-08-31 |
2003-03-20 |
Halliburton Energy Services, Inc. |
Roller cone bits, methods, and systems with anti-tracking variation in tooth orientation
|
US20040045742A1
(en)
*
|
2001-04-10 |
2004-03-11 |
Halliburton Energy Services, Inc. |
Force-balanced roller-cone bits, systems, drilling methods, and design methods
|
ID28517A
(id)
*
|
1998-08-31 |
2001-05-31 |
Halliburton Energy Serv Inc |
Bit kerucut penggulung daya seimbang, sistem metode pengeboran, dan metode disain
|
US6095262A
(en)
*
|
1998-08-31 |
2000-08-01 |
Halliburton Energy Services, Inc. |
Roller-cone bits, systems, drilling methods, and design methods with optimization of tooth orientation
|
US20040236553A1
(en)
*
|
1998-08-31 |
2004-11-25 |
Shilin Chen |
Three-dimensional tooth orientation for roller cone bits
|
JP2001117909A
(ja)
*
|
1999-10-21 |
2001-04-27 |
Oki Electric Ind Co Ltd |
マトリクス形式データの転置回路
|
US7464013B2
(en)
*
|
2000-03-13 |
2008-12-09 |
Smith International, Inc. |
Dynamically balanced cutting tool system
|
CA2340547C
(en)
*
|
2000-03-13 |
2005-12-13 |
Smith International, Inc. |
Method for simulating drilling of roller cone bits and its application to roller cone bit design and performance
|
US7251590B2
(en)
*
|
2000-03-13 |
2007-07-31 |
Smith International, Inc. |
Dynamic vibrational control
|
US9482055B2
(en)
|
2000-10-11 |
2016-11-01 |
Smith International, Inc. |
Methods for modeling, designing, and optimizing the performance of drilling tool assemblies
|
CA2348188C
(en)
*
|
2000-05-18 |
2006-08-01 |
Smith International, Inc. |
Rolling cone bit with elements fanned along the gage curve
|
US6527068B1
(en)
|
2000-08-16 |
2003-03-04 |
Smith International, Inc. |
Roller cone drill bit having non-axisymmetric cutting elements oriented to optimize drilling performance
|
EG22664A
(en)
*
|
2000-09-08 |
2003-05-31 |
Shell Int Research |
Drill bit
|
US6561292B1
(en)
*
|
2000-11-03 |
2003-05-13 |
Smith International, Inc. |
Rock bit with load stabilizing cutting structure
|
DE10254942B3
(de)
*
|
2002-11-25 |
2004-08-12 |
Siemens Ag |
Verfahren zur automatischen Ermittlung der Koordinaten von Abbildern von Marken in einem Volumendatensatz und medizinische Vorrichtung
|
GB2438550B
(en)
*
|
2003-05-27 |
2008-01-02 |
Smith International |
Drill bit
|
US20040105741A1
(en)
*
|
2003-07-14 |
2004-06-03 |
Pat Inglese |
Wet (plastic) and dry concrete reclamation/disposal device
|
US7195086B2
(en)
*
|
2004-01-30 |
2007-03-27 |
Anna Victorovna Aaron |
Anti-tracking earth boring bit with selected varied pitch for overbreak optimization and vibration reduction
|
US7434632B2
(en)
*
|
2004-03-02 |
2008-10-14 |
Halliburton Energy Services, Inc. |
Roller cone drill bits with enhanced drilling stability and extended life of associated bearings and seals
|
US20050257963A1
(en)
*
|
2004-05-20 |
2005-11-24 |
Joseph Tucker |
Self-Aligning Insert for Drill Bits
|
US7195078B2
(en)
*
|
2004-07-07 |
2007-03-27 |
Smith International, Inc. |
Multiple inserts of different geometry in a single row of a bit
|
US7721824B2
(en)
*
|
2004-07-07 |
2010-05-25 |
Smith International, Inc. |
Multiple inserts of different geometry in a single row of a bit
|
ITMI20051579A1
(it)
|
2004-08-16 |
2006-02-17 |
Halliburton Energy Serv Inc |
Punte da trivella a coni rotanti con strutture di cuscinetto ottimizzate
|
WO2007019483A1
(en)
|
2005-08-08 |
2007-02-15 |
Halliburton Energy Services, Inc. |
Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk
|
US20090229888A1
(en)
*
|
2005-08-08 |
2009-09-17 |
Shilin Chen |
Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk
|
US7860693B2
(en)
|
2005-08-08 |
2010-12-28 |
Halliburton Energy Services, Inc. |
Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk
|
US7370711B2
(en)
*
|
2005-08-15 |
2008-05-13 |
Smith International, Inc. |
Rolling cone drill bit having non-circumferentially arranged cutter elements
|
US7686104B2
(en)
*
|
2005-08-15 |
2010-03-30 |
Smith International, Inc. |
Rolling cone drill bit having cutter elements positioned in a plurality of differing radial positions
|
US7621345B2
(en)
*
|
2006-04-03 |
2009-11-24 |
Baker Hughes Incorporated |
High density row on roller cone bit
|
EP2038506B1
(en)
|
2006-05-26 |
2011-07-13 |
Baker Hughes Incorporated |
Cutting structure for earth-boring bit to reduce tracking
|
US8002053B2
(en)
*
|
2007-08-17 |
2011-08-23 |
Baker Hughes Incorporated |
System, method, and apparatus for predicting tracking by roller cone bits and anti-tracking cutting element spacing
|
US8678111B2
(en)
|
2007-11-16 |
2014-03-25 |
Baker Hughes Incorporated |
Hybrid drill bit and design method
|
CA2706343C
(en)
*
|
2007-12-14 |
2016-08-23 |
Halliburton Energy Services, Inc. |
Methods and systems to predict rotary drill bit walk and to design rotary drill bits and other downhole tools
|
US8459378B2
(en)
|
2009-05-13 |
2013-06-11 |
Baker Hughes Incorporated |
Hybrid drill bit
|
CA2773897A1
(en)
|
2009-09-16 |
2011-03-24 |
Baker Hughes Incorporated |
External, divorced pdc bearing assemblies for hybrid drill bits
|
WO2012006182A1
(en)
*
|
2010-06-29 |
2012-01-12 |
Baker Hughes Incorporated |
Drill bits with anti-tracking features
|
EP2673451B1
(en)
|
2011-02-11 |
2015-05-27 |
Baker Hughes Incorporated |
System and method for leg retention on hybrid bits
|
US9782857B2
(en)
|
2011-02-11 |
2017-10-10 |
Baker Hughes Incorporated |
Hybrid drill bit having increased service life
|
SG11201402311VA
(en)
|
2011-11-15 |
2014-06-27 |
Baker Hughes Inc |
Hybrid drill bits having increased drilling efficiency
|
US9249628B2
(en)
*
|
2012-11-16 |
2016-02-02 |
National Oilwell DHT, L.P. |
Hybrid rolling cone drill bits and methods for manufacturing same
|
CA2948648C
(en)
|
2014-05-23 |
2019-03-12 |
Baker Hugues Incorporated |
Hybrid bit with mechanically attached roller cone elements
|
US11428050B2
(en)
|
2014-10-20 |
2022-08-30 |
Baker Hughes Holdings Llc |
Reverse circulation hybrid bit
|