DE58909164D1 - Teleskop-Bohrgestänge. - Google Patents

Teleskop-Bohrgestänge.

Info

Publication number
DE58909164D1
DE58909164D1 DE58909164T DE58909164T DE58909164D1 DE 58909164 D1 DE58909164 D1 DE 58909164D1 DE 58909164 T DE58909164 T DE 58909164T DE 58909164 T DE58909164 T DE 58909164T DE 58909164 D1 DE58909164 D1 DE 58909164D1
Authority
DE
Germany
Prior art keywords
inner rod
string
telescopic drill
drill pipe
adjacent
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
DE58909164T
Other languages
English (en)
Inventor
Wilhelm Schaufenberg
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.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik GmbH
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 Maschinen und Bohrgeraete Fabrik GmbH filed Critical Wirth Maschinen und Bohrgeraete Fabrik GmbH
Application granted granted Critical
Publication of DE58909164D1 publication Critical patent/DE58909164D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07Telescoping 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)
DE58909164T 1988-12-19 1989-12-18 Teleskop-Bohrgestänge. Expired - Fee Related DE58909164D1 (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
DE58909164D1 true DE58909164D1 (de) 1995-05-11

Family

ID=6830918

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8815738U Expired DE8815738U1 (de) 1988-12-19 1988-12-19 Teleskop-Bohrgestänge
DE58909164T Expired - Fee Related DE58909164D1 (de) 1988-12-19 1989-12-18 Teleskop-Bohrgestänge.

Family Applications Before (1)

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

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116537751A (zh) * 2023-07-05 2023-08-04 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

Families Citing this family (2)

* 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

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116537751A (zh) * 2023-07-05 2023-08-04 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
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

Also Published As

Publication number Publication date
EP0374788A2 (de) 1990-06-27
EP0374788B1 (de) 1995-04-05
EP0374788A3 (de) 1991-03-13
ATE120829T1 (de) 1995-04-15
DE8815738U1 (de) 1989-02-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee