GB2353551B - Cutting structure - Google Patents

Cutting structure

Info

Publication number
GB2353551B
GB2353551B GB0028958A GB0028958A GB2353551B GB 2353551 B GB2353551 B GB 2353551B GB 0028958 A GB0028958 A GB 0028958A GB 0028958 A GB0028958 A GB 0028958A GB 2353551 B GB2353551 B GB 2353551B
Authority
GB
United Kingdom
Prior art keywords
cutting structure
cutting
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.)
Expired - Fee Related
Application number
GB0028958A
Other versions
GB0028958D0 (en
GB2353551A (en
Inventor
Graham Mensa-Wilmot
Carl W Keith
Stephen G Southland
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.)
Smith International Inc
Original Assignee
Smith International Inc
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 US08/719,929 external-priority patent/US6164394A/en
Application filed by Smith International Inc filed Critical Smith International Inc
Publication of GB0028958D0 publication Critical patent/GB0028958D0/en
Publication of GB2353551A publication Critical patent/GB2353551A/en
Application granted granted Critical
Publication of GB2353551B publication Critical patent/GB2353551B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/5673—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a non planar or non circular cutting face
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Earth Drilling (AREA)
GB0028958A 1996-09-25 1997-09-23 Cutting structure Expired - Fee Related GB2353551B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/719,929 US6164394A (en) 1996-09-25 1996-09-25 Drill bit with rows of cutters mounted to present a serrated cutting edge
GB9720245A GB2317632B (en) 1996-09-25 1997-09-23 Drill bit

Publications (3)

Publication Number Publication Date
GB0028958D0 GB0028958D0 (en) 2001-01-10
GB2353551A GB2353551A (en) 2001-02-28
GB2353551B true GB2353551B (en) 2001-04-18

Family

ID=26312304

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0028958A Expired - Fee Related GB2353551B (en) 1996-09-25 1997-09-23 Cutting structure
GB0028957A Expired - Fee Related GB2353550B (en) 1996-09-25 1997-09-23 Cutting element

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0028957A Expired - Fee Related GB2353550B (en) 1996-09-25 1997-09-23 Cutting element

Country Status (1)

Country Link
GB (2) GB2353551B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7461709B2 (en) * 2003-08-21 2008-12-09 Smith International, Inc. Multiple diameter cutting elements and bits incorporating the same
RU2559261C1 (en) * 2014-05-15 2015-08-10 Общество с ограниченной ответственностью Научно-производственное предприятие "БУРИНТЕХ" (ООО НПП "БУРИНТЕХ") Blade drill bit
WO2016142534A2 (en) * 2015-03-11 2016-09-15 Tercel Oilfield Products Belgium Sa Downhole tool and bottom hole assembly for running a string in a wellbore
CN105178868B (en) * 2015-08-07 2017-07-07 中国石油天然气股份有限公司 Design method and device of PDC drill bit and PDC drill bit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705122A (en) * 1985-01-15 1987-11-10 Nl Petroleum Products Limited Cutter assemblies for rotary drill bits
EP0556648A1 (en) * 1992-02-18 1993-08-25 Baker Hughes Incorporated Drill bit having combined positive and negative rake cutters
GB2292163A (en) * 1994-08-10 1996-02-14 Smith International Drill bit having enhanced cutting structure and stabilizing features

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724913A (en) * 1983-02-18 1988-02-16 Strata Bit Corporation Drill bit and improved cutting element
US5379853A (en) * 1993-09-20 1995-01-10 Smith International, Inc. Diamond drag bit cutting elements
GB2300437B (en) * 1995-05-02 1998-07-22 Camco Drilling Group Ltd Improvements in or relating to cutting elements for rotary drill bits

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705122A (en) * 1985-01-15 1987-11-10 Nl Petroleum Products Limited Cutter assemblies for rotary drill bits
EP0556648A1 (en) * 1992-02-18 1993-08-25 Baker Hughes Incorporated Drill bit having combined positive and negative rake cutters
GB2292163A (en) * 1994-08-10 1996-02-14 Smith International Drill bit having enhanced cutting structure and stabilizing features

Also Published As

Publication number Publication date
GB0028958D0 (en) 2001-01-10
GB2353551A (en) 2001-02-28
GB0028957D0 (en) 2001-01-10
GB2353550B (en) 2001-04-11
GB2353550A (en) 2001-02-28

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Legal Events

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

Effective date: 20150923