GB0917279D0 - Drilling tool - Google Patents

Drilling tool

Info

Publication number
GB0917279D0
GB0917279D0 GBGB0917279.2A GB0917279A GB0917279D0 GB 0917279 D0 GB0917279 D0 GB 0917279D0 GB 0917279 A GB0917279 A GB 0917279A GB 0917279 D0 GB0917279 D0 GB 0917279D0
Authority
GB
United Kingdom
Prior art keywords
drilling tool
drilling
tool
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.)
Granted
Application number
GBGB0917279.2A
Other versions
GB2464194B (en
GB2464194A (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.)
ReedHycalog UK Ltd
Original Assignee
ReedHycalog UK 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
Priority claimed from GBGB0818493.9A external-priority patent/GB0818493D0/en
Priority claimed from GBGB0820063.6A external-priority patent/GB0820063D0/en
Application filed by ReedHycalog UK Ltd filed Critical ReedHycalog UK Ltd
Publication of GB0917279D0 publication Critical patent/GB0917279D0/en
Publication of GB2464194A publication Critical patent/GB2464194A/en
Application granted granted Critical
Publication of GB2464194B publication Critical patent/GB2464194B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B10/26—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 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers

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)
GB0917279.2A 2008-10-09 2009-10-02 Drilling tool Expired - Fee Related GB2464194B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0818493.9A GB0818493D0 (en) 2008-10-09 2008-10-09 Drilling tool
GBGB0820063.6A GB0820063D0 (en) 2008-11-03 2008-11-03 Drilling tool

Publications (3)

Publication Number Publication Date
GB0917279D0 true GB0917279D0 (en) 2009-11-18
GB2464194A GB2464194A (en) 2010-04-14
GB2464194B GB2464194B (en) 2012-08-15

Family

ID=41393746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0917279.2A Expired - Fee Related GB2464194B (en) 2008-10-09 2009-10-02 Drilling tool

Country Status (3)

Country Link
CN (1) CN101899952B (en)
AU (1) AU2009222620B2 (en)
GB (1) GB2464194B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104136706B (en) * 2011-12-30 2016-12-07 史密斯国际有限公司 The holding of many rollers sickle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678644A (en) * 1995-08-15 1997-10-21 Diamond Products International, Inc. Bi-center and bit method for enhancing stability
GB2376489B (en) * 1999-06-30 2003-05-28 Smith International Bi-centre drill bit
US6659207B2 (en) * 1999-06-30 2003-12-09 Smith International, Inc. Bi-centered drill bit having enhanced casing drill-out capability and improved directional stability
US6394200B1 (en) * 1999-10-28 2002-05-28 Camco International (U.K.) Limited Drillout bi-center bit
US6913098B2 (en) * 2002-11-21 2005-07-05 Reedeycalog, L.P. Sub-reamer for bi-center type tools
US6926099B2 (en) * 2003-03-26 2005-08-09 Varel International, L.P. Drill out bi-center bit and method for using same
EA007832B1 (en) * 2003-05-21 2007-02-27 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Drill bit and system for drilling the borehole
CN2825916Y (en) * 2005-08-26 2006-10-11 中国石化集团胜利石油管理局钻井工艺研究院 PDC hole reaming bit with anti-blockage external slot

Also Published As

Publication number Publication date
AU2009222620A1 (en) 2010-04-29
CN101899952B (en) 2014-01-15
AU2009222620B2 (en) 2016-06-23
GB2464194B (en) 2012-08-15
GB2464194A (en) 2010-04-14
CN101899952A (en) 2010-12-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20191002