BE892485A - Obturateur pour une coulisse a percussion hydraulique - Google Patents

Obturateur pour une coulisse a percussion hydraulique

Info

Publication number
BE892485A
BE892485A BE0/207565A BE207565A BE892485A BE 892485 A BE892485 A BE 892485A BE 0/207565 A BE0/207565 A BE 0/207565A BE 207565 A BE207565 A BE 207565A BE 892485 A BE892485 A BE 892485A
Authority
BE
Belgium
Prior art keywords
shutter
hydraulic percussion
slide
percussion slide
hydraulic
Prior art date
Application number
BE0/207565A
Other languages
English (en)
Inventor
T Jung
G Heidemann
Original Assignee
Christensen Inc
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 Christensen Inc filed Critical Christensen Inc
Publication of BE892485A publication Critical patent/BE892485A/fr

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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
    • E21B31/113—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars hydraulically-operated

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Marine Sciences & Fisheries (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Forging (AREA)
BE0/207565A 1981-07-25 1982-03-12 Obturateur pour une coulisse a percussion hydraulique BE892485A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813129480 DE3129480C1 (de) 1981-07-25 1981-07-25 Ventilkoerper fuer eine hydraulische Schlagschere

Publications (1)

Publication Number Publication Date
BE892485A true BE892485A (fr) 1982-07-01

Family

ID=6137787

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/207565A BE892485A (fr) 1981-07-25 1982-03-12 Obturateur pour une coulisse a percussion hydraulique

Country Status (6)

Country Link
JP (1) JPS5824085A (fr)
BE (1) BE892485A (fr)
DE (1) DE3129480C1 (fr)
FR (1) FR2510175A1 (fr)
GB (1) GB2102472A (fr)
NL (1) NL8202574A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033557A (en) * 1990-05-07 1991-07-23 Anadrill, Inc. Hydraulic drilling jar
CA2604029A1 (fr) * 2005-04-08 2006-10-12 Well Innovation As Procede et moyen destines a fournir un retard dans des operations de puits de fond de trou

Also Published As

Publication number Publication date
JPS5824085A (ja) 1983-02-12
GB2102472A (en) 1983-02-02
DE3129480C1 (de) 1982-12-09
NL8202574A (nl) 1983-02-16
FR2510175A1 (fr) 1983-01-28

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CHRISTENSEN INC.

Effective date: 19840312