GB8612012D0 - Rotary drill bits - Google Patents

Rotary drill bits

Info

Publication number
GB8612012D0
GB8612012D0 GB868612012A GB8612012A GB8612012D0 GB 8612012 D0 GB8612012 D0 GB 8612012D0 GB 868612012 A GB868612012 A GB 868612012A GB 8612012 A GB8612012 A GB 8612012A GB 8612012 D0 GB8612012 D0 GB 8612012D0
Authority
GB
United Kingdom
Prior art keywords
drill bits
rotary drill
rotary
bits
drill
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
GB868612012A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NL Petroleum Products Ltd
Original Assignee
NL Petroleum Products Ltd
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 NL Petroleum Products Ltd filed Critical NL Petroleum Products Ltd
Priority to GB868612012A priority Critical patent/GB8612012D0/en
Publication of GB8612012D0 publication Critical patent/GB8612012D0/en
Priority to GB08710876A priority patent/GB2190412A/en
Priority to EP87304144A priority patent/EP0246789A3/de
Pending legal-status Critical Current

Links

GB868612012A 1986-05-16 1986-05-16 Rotary drill bits Pending GB8612012D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB868612012A GB8612012D0 (en) 1986-05-16 1986-05-16 Rotary drill bits
GB08710876A GB2190412A (en) 1986-05-16 1987-05-08 Improvements in or relating to rotary drill bits
EP87304144A EP0246789A3 (de) 1986-05-16 1987-05-11 Schneidelement für einen Drehbohrmeissel, Drehbohrmeissel mit derartigem Schneidelement und dessen Herstellungsverfahren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868612012A GB8612012D0 (en) 1986-05-16 1986-05-16 Rotary drill bits

Publications (1)

Publication Number Publication Date
GB8612012D0 true GB8612012D0 (en) 1986-06-25

Family

ID=10598000

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868612012A Pending GB8612012D0 (en) 1986-05-16 1986-05-16 Rotary drill bits
GB08710876A Withdrawn GB2190412A (en) 1986-05-16 1987-05-08 Improvements in or relating to rotary drill bits

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB08710876A Withdrawn GB2190412A (en) 1986-05-16 1987-05-08 Improvements in or relating to rotary drill bits

Country Status (2)

Country Link
EP (1) EP0246789A3 (de)
GB (2) GB8612012D0 (de)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151686A (en) * 1978-01-09 1979-05-01 General Electric Company Silicon carbide and silicon bonded polycrystalline diamond body and method of making it
DE3111156C1 (de) * 1981-03-21 1983-04-14 Christensen, Inc., 84115 Salt Lake City, Utah Schneidglied fuer Drehbohrmeissel zum Tiefbohren in Erdformationen
US4520881A (en) * 1982-09-24 1985-06-04 Cornelius Phaal Tool component
ATE39426T1 (de) * 1984-03-20 1989-01-15 Gen Electric Ueberzogener oxidationsresistenter poroeser schleifmittelpressling und verfahren zu seiner herstellung.
EP0156235B1 (de) * 1984-03-26 1989-05-24 Eastman Christensen Company Mehrkomponenten-Schneidelement mit verdichteten stengelförmigen polykristallinen Diamanten
AU3946885A (en) * 1984-03-26 1985-10-03 Norton Christensen Inc. Cutting element using polycrystalline diamond disks
DE3579484D1 (de) * 1984-03-26 1990-10-11 Eastman Christensen Co Mehrkomponenten-schneidelement mit dreieckigen, viereckigen und mehreckigen polykristallinen diamantscheiben.

Also Published As

Publication number Publication date
GB2190412A (en) 1987-11-18
GB8710876D0 (en) 1987-06-10
EP0246789A3 (de) 1988-12-14
EP0246789A2 (de) 1987-11-25

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