US5001138B1
(en)
*
|
1985-02-04 |
1998-01-20 |
Bayer Agrochem Kk |
Heterocyclic compounds
|
GB8711255D0
(en)
*
|
1987-05-13 |
1987-06-17 |
Nl Petroleum Prod |
Rotary drill bits
|
US5004057A
(en)
*
|
1988-01-20 |
1991-04-02 |
Eastman Christensen Company |
Drill bit with improved steerability
|
EP0336697B1
(de)
*
|
1988-04-05 |
1993-11-10 |
Camco Drilling Group Limited |
Schneidelement für Drehbohrmeissel und dessen Herstellung
|
EP0350045B1
(de)
*
|
1988-07-06 |
1996-01-17 |
Baker Hughes Incorporated |
Bohrmeissel mit Verbundschneidelementen
|
US5027912A
(en)
*
|
1988-07-06 |
1991-07-02 |
Baker Hughes Incorporated |
Drill bit having improved cutter configuration
|
US4941538A
(en)
*
|
1989-09-20 |
1990-07-17 |
Hughes Tool Company |
One-piece drill bit with improved gage design
|
US5025873A
(en)
*
|
1989-09-29 |
1991-06-25 |
Baker Hughes Incorporated |
Self-renewing multi-element cutting structure for rotary drag bit
|
US5348108A
(en)
*
|
1991-03-01 |
1994-09-20 |
Baker Hughes Incorporated |
Rolling cone bit with improved wear resistant inserts
|
US5238074A
(en)
*
|
1992-01-06 |
1993-08-24 |
Baker Hughes Incorporated |
Mosaic diamond drag bit cutter having a nonuniform wear pattern
|
US5667028A
(en)
*
|
1995-08-22 |
1997-09-16 |
Smith International, Inc. |
Multiple diamond layer polycrystalline diamond composite cutters
|
GB2309991B
(en)
*
|
1995-08-22 |
1997-10-29 |
Smith International |
A method of making multiple diamond layer polycrystalline diamond composite cutters
|
US5820985A
(en)
*
|
1995-12-07 |
1998-10-13 |
Baker Hughes Incorporated |
PDC cutters with improved toughness
|
US6009963A
(en)
*
|
1997-01-14 |
2000-01-04 |
Baker Hughes Incorporated |
Superabrasive cutting element with enhanced stiffness, thermal conductivity and cutting efficiency
|
US5967249A
(en)
*
|
1997-02-03 |
1999-10-19 |
Baker Hughes Incorporated |
Superabrasive cutters with structure aligned to loading and method of drilling
|
US5979578A
(en)
*
|
1997-06-05 |
1999-11-09 |
Smith International, Inc. |
Multi-layer, multi-grade multiple cutting surface PDC cutter
|
GB9811705D0
(en)
*
|
1998-06-02 |
1998-07-29 |
Camco Int Uk Ltd |
Preform cutting elements for rotary drill bits
|
US7036611B2
(en)
|
2002-07-30 |
2006-05-02 |
Baker Hughes Incorporated |
Expandable reamer apparatus for enlarging boreholes while drilling and methods of use
|
GB2454122B
(en)
|
2005-02-08 |
2009-07-08 |
Smith International |
Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
|
US9187959B2
(en)
|
2006-03-02 |
2015-11-17 |
Baker Hughes Incorporated |
Automated steerable hole enlargement drilling device and methods
|
US8875810B2
(en)
|
2006-03-02 |
2014-11-04 |
Baker Hughes Incorporated |
Hole enlargement drilling device and methods for using same
|
EP2097610B1
(de)
|
2006-12-04 |
2011-06-15 |
Baker Hughes Incorporated |
Ausstellbare räumer für erdbohranwendungen und verwendungsverfahren dafür
|
US8028771B2
(en)
|
2007-02-06 |
2011-10-04 |
Smith International, Inc. |
Polycrystalline diamond constructions having improved thermal stability
|
US7942219B2
(en)
|
2007-03-21 |
2011-05-17 |
Smith International, Inc. |
Polycrystalline diamond constructions having improved thermal stability
|
US9297211B2
(en)
|
2007-12-17 |
2016-03-29 |
Smith International, Inc. |
Polycrystalline diamond construction with controlled gradient metal content
|
WO2009146096A1
(en)
*
|
2008-04-04 |
2009-12-03 |
Baker Hughes Incorporated |
Rotary drill bits and drilling tools having protective structures on longitudinally trailing surfaces
|
US8083012B2
(en)
|
2008-10-03 |
2011-12-27 |
Smith International, Inc. |
Diamond bonded construction with thermally stable region
|
GB2481957B
(en)
*
|
2009-05-06 |
2014-10-15 |
Smith International |
Methods of making and attaching tsp material for forming cutting elements, cutting elements having such tsp material and bits incorporating such cutting
|
US8881833B2
(en)
|
2009-09-30 |
2014-11-11 |
Baker Hughes Incorporated |
Remotely controlled apparatus for downhole applications and methods of operation
|
CA2775725C
(en)
|
2009-09-30 |
2014-11-25 |
Baker Hughes Incorporated |
Earth-boring tools having expandable cutting structures and methods of using such earth-boring tools
|
US9175520B2
(en)
|
2009-09-30 |
2015-11-03 |
Baker Hughes Incorporated |
Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods
|
EP2572070A4
(de)
|
2010-05-21 |
2015-11-18 |
Smith International |
Hydraulische betätigung einer bohrlochwerkzeug-anordnung
|
SA111320627B1
(ar)
|
2010-07-21 |
2014-08-06 |
Baker Hughes Inc |
أداة حفرة بئر ذات أنصال قابلة للاستبدال
|
BR112013008176A2
(pt)
|
2010-10-04 |
2016-06-21 |
Baker Hughes Inc |
indicadores de status para uso em ferramentas de perfuração de terreno tendo membros expansíveis e métodos de fabricação e uso desses indicadores de status e ferramentas de perfuração de terreno
|
WO2012064737A2
(en)
|
2010-11-08 |
2012-05-18 |
Baker Hughes Incorporated |
Tools for use in subterranean boreholes having expandable members and related methods
|
US8844635B2
(en)
|
2011-05-26 |
2014-09-30 |
Baker Hughes Incorporated |
Corrodible triggering elements for use with subterranean borehole tools having expandable members and related methods
|
US8960333B2
(en)
|
2011-12-15 |
2015-02-24 |
Baker Hughes Incorporated |
Selectively actuating expandable reamers and related methods
|
US9267331B2
(en)
|
2011-12-15 |
2016-02-23 |
Baker Hughes Incorporated |
Expandable reamers and methods of using expandable reamers
|
US9388638B2
(en)
|
2012-03-30 |
2016-07-12 |
Baker Hughes Incorporated |
Expandable reamers having sliding and rotating expandable blades, and related methods
|
US9493991B2
(en)
|
2012-04-02 |
2016-11-15 |
Baker Hughes Incorporated |
Cutting structures, tools for use in subterranean boreholes including cutting structures and related methods
|
US9068407B2
(en)
|
2012-05-03 |
2015-06-30 |
Baker Hughes Incorporated |
Drilling assemblies including expandable reamers and expandable stabilizers, and related methods
|
US9394746B2
(en)
|
2012-05-16 |
2016-07-19 |
Baker Hughes Incorporated |
Utilization of expandable reamer blades in rigid earth-boring tool bodies
|
US9290998B2
(en)
|
2013-02-25 |
2016-03-22 |
Baker Hughes Incorporated |
Actuation mechanisms for downhole assemblies and related downhole assemblies and methods
|
US9677344B2
(en)
|
2013-03-01 |
2017-06-13 |
Baker Hughes Incorporated |
Components of drilling assemblies, drilling assemblies, and methods of stabilizing drilling assemblies in wellbores in subterranean formations
|
US9341027B2
(en)
|
2013-03-04 |
2016-05-17 |
Baker Hughes Incorporated |
Expandable reamer assemblies, bottom-hole assemblies, and related methods
|
US9284816B2
(en)
|
2013-03-04 |
2016-03-15 |
Baker Hughes Incorporated |
Actuation assemblies, hydraulically actuated tools for use in subterranean boreholes including actuation assemblies and related methods
|
US10174560B2
(en)
|
2015-08-14 |
2019-01-08 |
Baker Hughes Incorporated |
Modular earth-boring tools, modules for such tools and related methods
|
CN110116221A
(zh)
*
|
2018-02-06 |
2019-08-13 |
姜文辉 |
一种以低钴含量烧结碳化钨为基体的聚晶金刚石复合片
|