GB2290813B - Nozzles - Google Patents

Nozzles

Info

Publication number
GB2290813B
GB2290813B GB9511125A GB9511125A GB2290813B GB 2290813 B GB2290813 B GB 2290813B GB 9511125 A GB9511125 A GB 9511125A GB 9511125 A GB9511125 A GB 9511125A GB 2290813 B GB2290813 B GB 2290813B
Authority
GB
United Kingdom
Prior art keywords
nozzles
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
GB9511125A
Other versions
GB2290813A (en
GB9511125D0 (en
Inventor
Timothy Woolmington
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.)
BBL
Original Assignee
BBL
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 BBL filed Critical BBL
Publication of GB9511125D0 publication Critical patent/GB9511125D0/en
Publication of GB2290813A publication Critical patent/GB2290813A/en
Application granted granted Critical
Publication of GB2290813B publication Critical patent/GB2290813B/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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
GB9511125A 1994-06-28 1995-06-01 Nozzles Expired - Fee Related GB2290813B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9412917A GB9412917D0 (en) 1994-06-28 1994-06-28 Nozzles

Publications (3)

Publication Number Publication Date
GB9511125D0 GB9511125D0 (en) 1995-07-26
GB2290813A GB2290813A (en) 1996-01-10
GB2290813B true GB2290813B (en) 1998-05-20

Family

ID=10757422

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9412917A Pending GB9412917D0 (en) 1994-06-28 1994-06-28 Nozzles
GB9511125A Expired - Fee Related GB2290813B (en) 1994-06-28 1995-06-01 Nozzles

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9412917A Pending GB9412917D0 (en) 1994-06-28 1994-06-28 Nozzles

Country Status (1)

Country Link
GB (2) GB9412917D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7694608B2 (en) 2005-12-20 2010-04-13 Smith International, Inc. Method of manufacturing a matrix body drill bit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221271A (en) * 1978-04-10 1980-09-09 The Curators Of The University Of Missouri Water jet cutting nozzle transition section
US4285409A (en) * 1979-06-28 1981-08-25 Smith International, Inc. Two cone bit with extended diamond cutters
US4359115A (en) * 1979-03-08 1982-11-16 Construction De Materiels De Mines S.A. Novel rotary drill bits and drilling process
EP0197019A1 (en) * 1985-04-04 1986-10-08 Santrade Ltd. Drill bit
EP0272905A2 (en) * 1986-12-24 1988-06-29 Flowmole Corporation Nozzle assembly for enlarging an inground passageway
WO1988008070A1 (en) * 1987-04-08 1988-10-20 Flowdril Corporation Fluid jet assisted cone-type drill bit assembly and method
EP0335543A1 (en) * 1988-03-18 1989-10-04 Pilot Drilling Control Limited Drilling apparatus
US5469926A (en) * 1994-04-22 1995-11-28 Bor-Mor, Inc. Directional boring drill bit blade

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221271A (en) * 1978-04-10 1980-09-09 The Curators Of The University Of Missouri Water jet cutting nozzle transition section
US4359115A (en) * 1979-03-08 1982-11-16 Construction De Materiels De Mines S.A. Novel rotary drill bits and drilling process
US4285409A (en) * 1979-06-28 1981-08-25 Smith International, Inc. Two cone bit with extended diamond cutters
EP0197019A1 (en) * 1985-04-04 1986-10-08 Santrade Ltd. Drill bit
EP0272905A2 (en) * 1986-12-24 1988-06-29 Flowmole Corporation Nozzle assembly for enlarging an inground passageway
WO1988008070A1 (en) * 1987-04-08 1988-10-20 Flowdril Corporation Fluid jet assisted cone-type drill bit assembly and method
EP0335543A1 (en) * 1988-03-18 1989-10-04 Pilot Drilling Control Limited Drilling apparatus
US5469926A (en) * 1994-04-22 1995-11-28 Bor-Mor, Inc. Directional boring drill bit blade

Also Published As

Publication number Publication date
GB2290813A (en) 1996-01-10
GB9511125D0 (en) 1995-07-26
GB9412917D0 (en) 1994-08-17

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Legal Events

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

Effective date: 20080601