SE9602472L - Borrör för bildande av borrsträngar samt ventilkropp för sådant borrör - Google Patents

Borrör för bildande av borrsträngar samt ventilkropp för sådant borrör

Info

Publication number
SE9602472L
SE9602472L SE9602472A SE9602472A SE9602472L SE 9602472 L SE9602472 L SE 9602472L SE 9602472 A SE9602472 A SE 9602472A SE 9602472 A SE9602472 A SE 9602472A SE 9602472 L SE9602472 L SE 9602472L
Authority
SE
Sweden
Prior art keywords
drill
valve body
restriction
drill pipe
seat
Prior art date
Application number
SE9602472A
Other languages
Unknown language ( )
English (en)
Other versions
SE506855C2 (sv
SE9602472D0 (sv
Inventor
Per-Olof Liljebrand
Urban Olsson
Rainer Beccu
Original Assignee
Sandvik Ab
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 Sandvik Ab filed Critical Sandvik Ab
Priority to SE9602472A priority Critical patent/SE506855C2/sv
Publication of SE9602472D0 publication Critical patent/SE9602472D0/sv
Priority to AU32821/97A priority patent/AU712137B2/en
Priority to EP97928611A priority patent/EP0907820B1/en
Priority to CA002258164A priority patent/CA2258164C/en
Priority to PCT/SE1997/001085 priority patent/WO1997049891A1/en
Priority to AT97928611T priority patent/ATE257214T1/de
Priority to DE69727056T priority patent/DE69727056D1/de
Priority to ZA9705507A priority patent/ZA975507B/xx
Publication of SE9602472L publication Critical patent/SE9602472L/sv
Publication of SE506855C2 publication Critical patent/SE506855C2/sv

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Check Valves (AREA)
  • Drilling Tools (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Tubes (AREA)
SE9602472A 1996-06-24 1996-06-24 Borrör för bildande av borrsträngar samt ventilkropp för sådant borrör SE506855C2 (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9602472A SE506855C2 (sv) 1996-06-24 1996-06-24 Borrör för bildande av borrsträngar samt ventilkropp för sådant borrör
AU32821/97A AU712137B2 (en) 1996-06-24 1997-06-18 Drill tube for forming drill strings
EP97928611A EP0907820B1 (en) 1996-06-24 1997-06-18 Drill tube for forming drill strings
CA002258164A CA2258164C (en) 1996-06-24 1997-06-18 Drill tube for forming drill strings
PCT/SE1997/001085 WO1997049891A1 (en) 1996-06-24 1997-06-18 Drill tube for forming drill strings
AT97928611T ATE257214T1 (de) 1996-06-24 1997-06-18 Bohrrohr für bohrgestänge
DE69727056T DE69727056D1 (de) 1996-06-24 1997-06-18 Bohrrohr für bohrgestänge
ZA9705507A ZA975507B (en) 1996-06-24 1997-06-20 Drill tube for forming drill strings.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9602472A SE506855C2 (sv) 1996-06-24 1996-06-24 Borrör för bildande av borrsträngar samt ventilkropp för sådant borrör

Publications (3)

Publication Number Publication Date
SE9602472D0 SE9602472D0 (sv) 1996-06-24
SE9602472L true SE9602472L (sv) 1997-12-25
SE506855C2 SE506855C2 (sv) 1998-02-16

Family

ID=20403117

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9602472A SE506855C2 (sv) 1996-06-24 1996-06-24 Borrör för bildande av borrsträngar samt ventilkropp för sådant borrör

Country Status (7)

Country Link
EP (1) EP0907820B1 (sv)
AT (1) ATE257214T1 (sv)
AU (1) AU712137B2 (sv)
DE (1) DE69727056D1 (sv)
SE (1) SE506855C2 (sv)
WO (1) WO1997049891A1 (sv)
ZA (1) ZA975507B (sv)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922221C (de) * 1952-09-09 1955-01-10 Baker Oil Tools Inc Rohrschuh fuer den Einbau von Rohrstraengen in mit Fluessigkeit gefuellte Tiefbohrloecher
GB8518218D0 (en) * 1985-07-19 1985-08-29 Drilex Ltd Drop ball sub-assembly
US5174392A (en) * 1991-11-21 1992-12-29 Reinhardt Paul A Mechanically actuated fluid control device for downhole fluid motor
SE503367C2 (sv) * 1993-04-27 1996-06-03 Sandvik Ab Borrörselement för topphammarborrning

Also Published As

Publication number Publication date
AU712137B2 (en) 1999-10-28
ATE257214T1 (de) 2004-01-15
AU3282197A (en) 1998-01-14
DE69727056D1 (de) 2004-02-05
EP0907820A1 (en) 1999-04-14
WO1997049891A1 (en) 1997-12-31
EP0907820B1 (en) 2004-01-02
SE506855C2 (sv) 1998-02-16
SE9602472D0 (sv) 1996-06-24
ZA975507B (en) 1998-01-23

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Legal Events

Date Code Title Description
NUG Patent has lapsed