EP0374788A3 - Teleskop-Bohrgestänge - Google Patents

Teleskop-Bohrgestänge Download PDF

Info

Publication number
EP0374788A3
EP0374788A3 EP19890123365 EP89123365A EP0374788A3 EP 0374788 A3 EP0374788 A3 EP 0374788A3 EP 19890123365 EP19890123365 EP 19890123365 EP 89123365 A EP89123365 A EP 89123365A EP 0374788 A3 EP0374788 A3 EP 0374788A3
Authority
EP
European Patent Office
Prior art keywords
inner rod
string
drill string
telescopic drill
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.)
Granted
Application number
EP19890123365
Other languages
English (en)
French (fr)
Other versions
EP0374788B1 (de
EP0374788A2 (de
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
Publication of EP0374788A2 publication Critical patent/EP0374788A2/de
Publication of EP0374788A3 publication Critical patent/EP0374788A3/de
Application granted granted Critical
Publication of EP0374788B1 publication Critical patent/EP0374788B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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)

Abstract

Bei einem Teleskop-Bohrgestänge, das eine Innen­ stange (4) und wenigstens einen weiteren, zur Innenstange (4) koaxialen Gestängeteil (3) ent­ hält, wobei die Gestängeteile mit Mitteln zur Drehmomentübertragung und zur Übertragung einer Druckkraft in Richtung auf ein Anschlußstück (9) für ein Werkzeug versehen sind, ist eine Kupp­ lungsvorrichtung (11) für die Innenstange (4) und den ihr benachbarten Gestängeteil (3) vor­ gesehen. Die Kupplungsvorrichtung (11) weist einen abnehmbaren, im montierten Zustand einen Stoßdämpfer (10) der Innenstange (4) übergreifen­ den und der Innenstange (4) eine begrenzte axiale Beweglichkeit relativ zum benachbarten Gestänge­ teil (3) belassenden Kupplungsteil (16) auf.
EP89123365A 1988-12-19 1989-12-18 Teleskop-Bohrgestänge Expired - Lifetime EP0374788B1 (de)

Applications Claiming Priority (2)

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

Publications (3)

Publication Number Publication Date
EP0374788A2 EP0374788A2 (de) 1990-06-27
EP0374788A3 true EP0374788A3 (de) 1991-03-13
EP0374788B1 EP0374788B1 (de) 1995-04-05

Family

ID=6830918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123365A Expired - Lifetime EP0374788B1 (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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1554490A (de) * 1967-02-27 1969-01-17
US3517760A (en) * 1968-03-22 1970-06-30 Delmag Maschinenfabrik Telescopic drill rods for soil drilling equipments
US3763666A (en) * 1970-11-20 1973-10-09 Wirth Co Kg Masch Bohr Telescopic drill rod
DE8815738U1 (de) * 1988-12-19 1989-02-02 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz Teleskop-Bohrgestänge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1554490A (de) * 1967-02-27 1969-01-17
US3517760A (en) * 1968-03-22 1970-06-30 Delmag Maschinenfabrik Telescopic drill rods for soil drilling equipments
US3763666A (en) * 1970-11-20 1973-10-09 Wirth Co Kg Masch Bohr Telescopic drill rod
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
EP0374788B1 (de) 1995-04-05
EP0374788A2 (de) 1990-06-27
DE8815738U1 (de) 1989-02-02
ATE120829T1 (de) 1995-04-15
DE58909164D1 (de) 1995-05-11

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