EP0770759A3 - A drilling assembly for use in drilling holes in subsurface formations - Google Patents

A drilling assembly for use in drilling holes in subsurface formations Download PDF

Info

Publication number
EP0770759A3
EP0770759A3 EP96307429A EP96307429A EP0770759A3 EP 0770759 A3 EP0770759 A3 EP 0770759A3 EP 96307429 A EP96307429 A EP 96307429A EP 96307429 A EP96307429 A EP 96307429A EP 0770759 A3 EP0770759 A3 EP 0770759A3
Authority
EP
European Patent Office
Prior art keywords
drilling
subsurface formations
holes
assembly
drilling assembly
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.)
Withdrawn
Application number
EP96307429A
Other languages
German (de)
French (fr)
Other versions
EP0770759A2 (en
Inventor
John Michael Fuller
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.)
Camco Drilling Group Ltd
Original Assignee
Camco Drilling Group 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 Camco Drilling Group Ltd filed Critical Camco Drilling Group Ltd
Publication of EP0770759A2 publication Critical patent/EP0770759A2/en
Publication of EP0770759A3 publication Critical patent/EP0770759A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream the hole
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/20—Drives for drilling, used in the borehole combined with surface drive

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)
EP96307429A 1995-10-26 1996-10-11 A drilling assembly for use in drilling holes in subsurface formations Withdrawn EP0770759A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9521944.0A GB9521944D0 (en) 1995-10-26 1995-10-26 A drilling assembly for use in drilling holes in subsurface formations
GB9521944 1995-10-26

Publications (2)

Publication Number Publication Date
EP0770759A2 EP0770759A2 (en) 1997-05-02
EP0770759A3 true EP0770759A3 (en) 1997-07-02

Family

ID=10782943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96307429A Withdrawn EP0770759A3 (en) 1995-10-26 1996-10-11 A drilling assembly for use in drilling holes in subsurface formations

Country Status (2)

Country Link
EP (1) EP0770759A3 (en)
GB (2) GB9521944D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7946361B2 (en) 2008-01-17 2011-05-24 Weatherford/Lamb, Inc. Flow operated orienter and method of directional drilling using the flow operated orienter

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9521972D0 (en) * 1995-10-26 1996-01-03 Camco Drilling Group Ltd A drilling assembly for drilling holes in subsurface formations
US6280874B1 (en) 1998-12-11 2001-08-28 Schlumberger Technology Corp. Annular pack
AU5146899A (en) * 1999-08-04 2001-03-05 Chunfang Wang A drilling device
EP1291486A1 (en) * 2001-09-07 2003-03-12 Shell Internationale Researchmaatschappij B.V. Rotary coiled tubing
US7712549B2 (en) 2004-11-15 2010-05-11 Dennis Tool Company Drilling tool
US7481282B2 (en) 2005-05-13 2009-01-27 Weatherford/Lamb, Inc. Flow operated orienter
US20090091278A1 (en) * 2007-09-12 2009-04-09 Michael Montois Downhole Load Sharing Motor Assembly
US20090200290A1 (en) 2007-10-19 2009-08-13 Paul Gregory Cardinal Variable voltage load tap changing transformer
WO2009129143A1 (en) 2008-04-18 2009-10-22 Shell Oil Company Systems, methods, and processes utilized for treating hydrocarbon containing subsurface formations
FR2935015B1 (en) * 2008-08-18 2010-11-05 Gerard Arsonnet DEVICE FOR PRODUCING A WELL IN A SOIL
RU2529537C2 (en) 2008-10-13 2014-09-27 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Systems for treatment of underground bed with circulating heat transfer fluid
US8201642B2 (en) 2009-01-21 2012-06-19 Baker Hughes Incorporated Drilling assemblies including one of a counter rotating drill bit and a counter rotating reamer, methods of drilling, and methods of forming drilling assemblies
GB0918358D0 (en) 2009-10-20 2009-12-02 Futuretec Ltd Wellbore completion
WO2012161596A1 (en) * 2011-05-24 2012-11-29 Flexidrill Limited Control mechanism
US9506335B1 (en) 2014-05-27 2016-11-29 Gary Smith Multi-directionally rotating downhole drilling assembly and method
CN106014198B (en) * 2016-05-11 2018-09-14 上海安恒环保科技有限公司 A kind of efficient connecting pipes drilling rig

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE881484C (en) * 1944-03-28 1953-06-29 Salzgitter Maschinen Ag Drilling turbine
US4227584A (en) * 1978-12-19 1980-10-14 Driver W B Downhole flexible drive system
US4646855A (en) * 1984-11-06 1987-03-03 Mobil Oil Corporation Method for raising and lowering a drill string in a wellbore during drilling operations
US4862974A (en) * 1988-12-07 1989-09-05 Amoco Corporation Downhole drilling assembly, apparatus and method utilizing drilling motor and stabilizer
SU1514895A1 (en) * 1987-06-18 1989-10-15 Всесоюзный Научно-Исследовательский Институт Буровой Техники Apparatus for sinking vertical wells
EP0400921A2 (en) * 1989-05-30 1990-12-05 Weir Pumps Limited Drill bit assembly with concentric rotatable cutting elements and method of drilling
US5417292A (en) * 1993-11-22 1995-05-23 Polakoff; Paul Large diameter rock drill

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE881484C (en) * 1944-03-28 1953-06-29 Salzgitter Maschinen Ag Drilling turbine
US4227584A (en) * 1978-12-19 1980-10-14 Driver W B Downhole flexible drive system
US4646855A (en) * 1984-11-06 1987-03-03 Mobil Oil Corporation Method for raising and lowering a drill string in a wellbore during drilling operations
SU1514895A1 (en) * 1987-06-18 1989-10-15 Всесоюзный Научно-Исследовательский Институт Буровой Техники Apparatus for sinking vertical wells
US4862974A (en) * 1988-12-07 1989-09-05 Amoco Corporation Downhole drilling assembly, apparatus and method utilizing drilling motor and stabilizer
EP0400921A2 (en) * 1989-05-30 1990-12-05 Weir Pumps Limited Drill bit assembly with concentric rotatable cutting elements and method of drilling
US5417292A (en) * 1993-11-22 1995-05-23 Polakoff; Paul Large diameter rock drill

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9031, Derwent World Patents Index; Class H01, AN 90-236933, XP002024335 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7946361B2 (en) 2008-01-17 2011-05-24 Weatherford/Lamb, Inc. Flow operated orienter and method of directional drilling using the flow operated orienter

Also Published As

Publication number Publication date
GB9521944D0 (en) 1996-01-03
GB2306528A (en) 1997-05-07
EP0770759A2 (en) 1997-05-02
GB9621205D0 (en) 1996-11-27

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