GB2441074B - Improved nozzle bore for pdc bits - Google Patents

Improved nozzle bore for pdc bits

Info

Publication number
GB2441074B
GB2441074B GB0722351A GB0722351A GB2441074B GB 2441074 B GB2441074 B GB 2441074B GB 0722351 A GB0722351 A GB 0722351A GB 0722351 A GB0722351 A GB 0722351A GB 2441074 B GB2441074 B GB 2441074B
Authority
GB
United Kingdom
Prior art keywords
nozzle bore
improved nozzle
pdc bits
pdc
bits
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
GB0722351A
Other versions
GB2441074A (en
GB0722351D0 (en
Inventor
James Layne Larsen
Dwayne P Terracina
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 US11/215,310 external-priority patent/US7325632B2/en
Application filed by Smith International Inc filed Critical Smith International Inc
Priority to GB0722351A priority Critical patent/GB2441074B/en
Publication of GB0722351D0 publication Critical patent/GB0722351D0/en
Publication of GB2441074A publication Critical patent/GB2441074A/en
Application granted granted Critical
Publication of GB2441074B publication Critical patent/GB2441074B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B10/60—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
    • 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
    • E21B10/08—Roller bits
    • E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
GB0722351A 2005-08-30 2006-08-29 Improved nozzle bore for pdc bits Expired - Fee Related GB2441074B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0722351A GB2441074B (en) 2005-08-30 2006-08-29 Improved nozzle bore for pdc bits

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/215,310 US7325632B2 (en) 2004-02-26 2005-08-30 Nozzle bore for PDC bits
GB0722351A GB2441074B (en) 2005-08-30 2006-08-29 Improved nozzle bore for pdc bits
GB0617009A GB2429729B (en) 2004-02-26 2006-08-29 Improved nozzle bore for PDC bits

Publications (3)

Publication Number Publication Date
GB0722351D0 GB0722351D0 (en) 2007-12-27
GB2441074A GB2441074A (en) 2008-02-20
GB2441074B true GB2441074B (en) 2008-08-06

Family

ID=38896292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0722351A Expired - Fee Related GB2441074B (en) 2005-08-30 2006-08-29 Improved nozzle bore for pdc bits

Country Status (1)

Country Link
GB (1) GB2441074B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294073A (en) * 1994-10-04 1996-04-17 Smith International A retention shroud for an extended nozzle
GB2295839A (en) * 1994-12-05 1996-06-12 Smith International Rock bit nozzle retention device
GB2307927A (en) * 1995-10-23 1997-06-11 Smith International Rock bit
GB2361728A (en) * 2000-04-12 2001-10-31 Smith International Nozzle retention body
GB2411418A (en) * 2004-02-26 2005-08-31 Smith International Nozzle bore for reduced bit internal erosion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294073A (en) * 1994-10-04 1996-04-17 Smith International A retention shroud for an extended nozzle
GB2295839A (en) * 1994-12-05 1996-06-12 Smith International Rock bit nozzle retention device
GB2307927A (en) * 1995-10-23 1997-06-11 Smith International Rock bit
GB2361728A (en) * 2000-04-12 2001-10-31 Smith International Nozzle retention body
GB2411418A (en) * 2004-02-26 2005-08-31 Smith International Nozzle bore for reduced bit internal erosion
GB2423543A (en) * 2004-02-26 2006-08-30 Smith International Drill bit nozzle and chamber for high flow rates

Also Published As

Publication number Publication date
GB2441074A (en) 2008-02-20
GB0722351D0 (en) 2007-12-27

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Legal Events

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

Effective date: 20150829