ATE257214T1 - Bohrrohr für bohrgestänge - Google Patents

Bohrrohr für bohrgestänge

Info

Publication number
ATE257214T1
ATE257214T1 AT97928611T AT97928611T ATE257214T1 AT E257214 T1 ATE257214 T1 AT E257214T1 AT 97928611 T AT97928611 T AT 97928611T AT 97928611 T AT97928611 T AT 97928611T AT E257214 T1 ATE257214 T1 AT E257214T1
Authority
AT
Austria
Prior art keywords
restriction
valve body
seat
drill pipe
drill tube
Prior art date
Application number
AT97928611T
Other languages
English (en)
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
Application granted granted Critical
Publication of ATE257214T1 publication Critical patent/ATE257214T1/de

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)
AT97928611T 1996-06-24 1997-06-18 Bohrrohr für bohrgestänge ATE257214T1 (de)

Applications Claiming Priority (2)

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
PCT/SE1997/001085 WO1997049891A1 (en) 1996-06-24 1997-06-18 Drill tube for forming drill strings

Publications (1)

Publication Number Publication Date
ATE257214T1 true ATE257214T1 (de) 2004-01-15

Family

ID=20403117

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97928611T ATE257214T1 (de) 1996-06-24 1997-06-18 Bohrrohr für bohrgestänge

Country Status (7)

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

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
SE9602472L (sv) 1997-12-25
AU3282197A (en) 1998-01-14
DE69727056D1 (de) 2004-02-05
EP0907820A1 (de) 1999-04-14
WO1997049891A1 (en) 1997-12-31
EP0907820B1 (de) 2004-01-02
SE506855C2 (sv) 1998-02-16
SE9602472D0 (sv) 1996-06-24
ZA975507B (en) 1998-01-23

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