ATE120829T1 - Teleskop-bohrgestänge. - Google Patents

Teleskop-bohrgestänge.

Info

Publication number
ATE120829T1
ATE120829T1 AT89123365T AT89123365T ATE120829T1 AT E120829 T1 ATE120829 T1 AT E120829T1 AT 89123365 T AT89123365 T AT 89123365T AT 89123365 T AT89123365 T AT 89123365T AT E120829 T1 ATE120829 T1 AT E120829T1
Authority
AT
Austria
Prior art keywords
inner rod
string
telescopic drill
drill pipe
adjacent
Prior art date
Application number
AT89123365T
Other languages
English (en)
Inventor
Wilhelm Schaufenberg
Original Assignee
Wirth Co Kg Masch Bohr
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 Wirth Co Kg Masch Bohr filed Critical Wirth Co Kg Masch Bohr
Application granted granted Critical
Publication of ATE120829T1 publication Critical patent/ATE120829T1/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
AT89123365T 1988-12-19 1989-12-18 Teleskop-bohrgestänge. ATE120829T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8815738U DE8815738U1 (de) 1988-12-19 1988-12-19 Teleskop-Bohrgestänge

Publications (1)

Publication Number Publication Date
ATE120829T1 true ATE120829T1 (de) 1995-04-15

Family

ID=6830918

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89123365T ATE120829T1 (de) 1988-12-19 1989-12-18 Teleskop-bohrgestänge.

Country Status (3)

Country Link
EP (1) EP0374788B1 (de)
AT (1) ATE120829T1 (de)
DE (2) DE8815738U1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8815738U1 (de) * 1988-12-19 1989-02-02 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz Teleskop-Bohrgestänge
US5263899A (en) * 1990-06-12 1993-11-23 Hitachi Construction Machinery Co., Ltd. Cylindrical telescopic kelly-bar apparatus
CN116537751B (zh) * 2023-07-05 2023-09-08 黑龙江省水利学校(黑龙江水利高级技工学校) 一种水文地质孔施工用填砾料输送管及施工方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460619A (en) * 1967-02-27 1969-08-12 Byron Jackson Inc Hydraulically locked adjustable tail pipe for well tools
US3517760A (en) * 1968-03-22 1970-06-30 Delmag Maschinenfabrik Telescopic drill rods for soil drilling equipments
DE2057101C2 (de) * 1970-11-20 1974-03-07 Wirth Co Kg Masch Bohr Teleskop-Bohrgestänge
DE8815738U1 (de) * 1988-12-19 1989-02-02 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz Teleskop-Bohrgestänge

Also Published As

Publication number Publication date
DE58909164D1 (de) 1995-05-11
DE8815738U1 (de) 1989-02-02
EP0374788A2 (de) 1990-06-27
EP0374788B1 (de) 1995-04-05
EP0374788A3 (de) 1991-03-13

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee