GB8528894D0 - Rotary drill bits - Google Patents

Rotary drill bits

Info

Publication number
GB8528894D0
GB8528894D0 GB858528894A GB8528894A GB8528894D0 GB 8528894 D0 GB8528894 D0 GB 8528894D0 GB 858528894 A GB858528894 A GB 858528894A GB 8528894 A GB8528894 A GB 8528894A GB 8528894 D0 GB8528894 D0 GB 8528894D0
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
GB858528894A
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 GB858528894A priority Critical patent/GB8528894D0/en
Publication of GB8528894D0 publication Critical patent/GB8528894D0/en
Priority to GB08627439A priority patent/GB2183694A/en
Priority to EP86308956A priority patent/EP0225101A3/en
Priority to AU65388/86A priority patent/AU6538886A/en
Pending legal-status Critical Current

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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B10/08—Roller bits
    • E21B10/14—Roller bits combined with non-rolling cutters other than of leading-portion type

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB858528894A 1985-11-23 1985-11-23 Rotary drill bits Pending GB8528894D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB858528894A GB8528894D0 (en) 1985-11-23 1985-11-23 Rotary drill bits
GB08627439A GB2183694A (en) 1985-11-23 1986-11-17 Improvements in or relating to rotary drill bits
EP86308956A EP0225101A3 (en) 1985-11-23 1986-11-17 Improvements in or relating to drill bits
AU65388/86A AU6538886A (en) 1985-11-23 1986-11-19 Rotary bit with variable configuration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858528894A GB8528894D0 (en) 1985-11-23 1985-11-23 Rotary drill bits

Publications (1)

Publication Number Publication Date
GB8528894D0 true GB8528894D0 (en) 1986-01-02

Family

ID=10588676

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858528894A Pending GB8528894D0 (en) 1985-11-23 1985-11-23 Rotary drill bits
GB08627439A Withdrawn GB2183694A (en) 1985-11-23 1986-11-17 Improvements in or relating to rotary drill bits

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB08627439A Withdrawn GB2183694A (en) 1985-11-23 1986-11-17 Improvements in or relating to rotary drill bits

Country Status (3)

Country Link
EP (1) EP0225101A3 (en)
AU (1) AU6538886A (en)
GB (2) GB8528894D0 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9708428D0 (en) * 1997-04-26 1997-06-18 Camco Int Uk Ltd Improvements in or relating to rotary drill bits
US6338390B1 (en) * 1999-01-12 2002-01-15 Baker Hughes Incorporated Method and apparatus for drilling a subterranean formation employing drill bit oscillation
AU1401101A (en) 1999-11-10 2001-06-06 Petroleum Research And Development N.V. Control method for use with a steerable drilling system
US8082134B2 (en) * 2000-03-13 2011-12-20 Smith International, Inc. Techniques for modeling/simulating, designing optimizing, and displaying hybrid drill bits
US7841426B2 (en) 2007-04-05 2010-11-30 Baker Hughes Incorporated Hybrid drill bit with fixed cutters as the sole cutting elements in the axial center of the drill bit
US20100025119A1 (en) 2007-04-05 2010-02-04 Baker Hughes Incorporated Hybrid drill bit and method of using tsp or mosaic cutters on a hybrid bit
US7845435B2 (en) 2007-04-05 2010-12-07 Baker Hughes Incorporated Hybrid drill bit and method of drilling
US8678111B2 (en) 2007-11-16 2014-03-25 Baker Hughes Incorporated Hybrid drill bit and design method
WO2009064969A1 (en) 2007-11-16 2009-05-22 Baker Hughes Incorporated Hybrid drill bit and design method
US20090272582A1 (en) 2008-05-02 2009-11-05 Baker Hughes Incorporated Modular hybrid drill bit
US7819208B2 (en) 2008-07-25 2010-10-26 Baker Hughes Incorporated Dynamically stable hybrid drill bit
US8948917B2 (en) 2008-10-29 2015-02-03 Baker Hughes Incorporated Systems and methods for robotic welding of drill bits
US8450637B2 (en) 2008-10-23 2013-05-28 Baker Hughes Incorporated Apparatus for automated application of hardfacing material to drill bits
US9439277B2 (en) 2008-10-23 2016-09-06 Baker Hughes Incorporated Robotically applied hardfacing with pre-heat
US8047307B2 (en) 2008-12-19 2011-11-01 Baker Hughes Incorporated Hybrid drill bit with secondary backup cutters positioned with high side rake angles
EP2376676A2 (en) 2008-12-31 2011-10-19 Baker Hughes Incorporated Method and apparatus for automated application of hardfacing material to rolling cutters of hybrid-type earth boring drill bits, hybrid drill bits comprising such hardfaced steel-toothed cutting elements, and methods of use thereof
US8141664B2 (en) 2009-03-03 2012-03-27 Baker Hughes Incorporated Hybrid drill bit with high bearing pin angles
US8056651B2 (en) 2009-04-28 2011-11-15 Baker Hughes Incorporated Adaptive control concept for hybrid PDC/roller cone bits
US8459378B2 (en) 2009-05-13 2013-06-11 Baker Hughes Incorporated Hybrid drill bit
US8157026B2 (en) 2009-06-18 2012-04-17 Baker Hughes Incorporated Hybrid bit with variable exposure
US9004198B2 (en) 2009-09-16 2015-04-14 Baker Hughes Incorporated External, divorced PDC bearing assemblies for hybrid drill bits
US8347989B2 (en) 2009-10-06 2013-01-08 Baker Hughes Incorporated Hole opener with hybrid reaming section and method of making
US8448724B2 (en) 2009-10-06 2013-05-28 Baker Hughes Incorporated Hole opener with hybrid reaming section
CA2804041C (en) 2010-06-29 2016-04-05 Baker Hughes Incorporated Hybrid drill bit with anti-tracking features
US8978786B2 (en) 2010-11-04 2015-03-17 Baker Hughes Incorporated System and method for adjusting roller cone profile on hybrid bit
MX337212B (en) 2011-02-11 2016-02-17 Baker Hughes Inc 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
US9353575B2 (en) 2011-11-15 2016-05-31 Baker Hughes Incorporated Hybrid drill bits having increased drilling efficiency
WO2015179792A2 (en) 2014-05-23 2015-11-26 Baker Hughes Incorporated Hybrid bit with mechanically attached rolling cutter assembly
US11428050B2 (en) 2014-10-20 2022-08-30 Baker Hughes Holdings Llc Reverse circulation hybrid bit
US10557311B2 (en) 2015-07-17 2020-02-11 Halliburton Energy Services, Inc. Hybrid drill bit with counter-rotation cutters in center
US11795763B2 (en) 2020-06-11 2023-10-24 Schlumberger Technology Corporation Downhole tools having radially extendable elements

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024855A (en) * 1959-07-06 1962-03-13 Jersey Prod Res Co Extensible drill bit
US3765493A (en) * 1971-12-01 1973-10-16 E Rosar Dual bit drilling tool
US4076087A (en) * 1976-06-14 1978-02-28 Vladimir Yakovlevich Chuply Hole reamer
US4478296A (en) * 1981-12-14 1984-10-23 Richman Jr Charles D Drill bit having multiple drill rod impact members

Also Published As

Publication number Publication date
GB8627439D0 (en) 1986-12-17
EP0225101A2 (en) 1987-06-10
EP0225101A3 (en) 1988-09-21
AU6538886A (en) 1987-05-28
GB2183694A (en) 1987-06-10

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