DE3368716D1 - Single acting hydraulic fishing jar - Google Patents

Single acting hydraulic fishing jar

Info

Publication number
DE3368716D1
DE3368716D1 DE8383630168T DE3368716T DE3368716D1 DE 3368716 D1 DE3368716 D1 DE 3368716D1 DE 8383630168 T DE8383630168 T DE 8383630168T DE 3368716 T DE3368716 T DE 3368716T DE 3368716 D1 DE3368716 D1 DE 3368716D1
Authority
DE
Germany
Prior art keywords
acting hydraulic
single acting
fishing jar
hydraulic fishing
jar
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
Application number
DE8383630168T
Other languages
German (de)
English (en)
Inventor
Robert W Evans
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.)
Dailey International Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE3368716D1 publication Critical patent/DE3368716D1/de
Expired 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
    • 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)
  • Mining & Mineral Resources (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Forging (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Glass Compositions (AREA)
DE8383630168T 1982-11-22 1983-10-13 Single acting hydraulic fishing jar Expired DE3368716D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44360582A 1982-11-22 1982-11-22

Publications (1)

Publication Number Publication Date
DE3368716D1 true DE3368716D1 (en) 1987-02-05

Family

ID=23761476

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383630168T Expired DE3368716D1 (en) 1982-11-22 1983-10-13 Single acting hydraulic fishing jar

Country Status (5)

Country Link
EP (1) EP0110803B1 (enrdf_load_stackoverflow)
JP (1) JPS5996389A (enrdf_load_stackoverflow)
CA (1) CA1220779A (enrdf_load_stackoverflow)
DE (1) DE3368716D1 (enrdf_load_stackoverflow)
MX (1) MX157609A (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6278494A (ja) * 1985-10-02 1987-04-10 Hitachi Ltd スクロ−ル流体機械
US4844183A (en) * 1987-10-28 1989-07-04 Dailey Petroleum Services, Corp. Accelerator for fishing jar with hydrostatic assist
RU2166550C2 (ru) * 1999-03-26 2001-05-10 Центральный научно-исследовательский институт черной металлургии им. И.П. Бардина Способ производства низкокремнистой стали
GB2362904B (en) * 2000-05-12 2004-08-11 Bd Kendle Engineering Ltd Improved jar mechanism
CA2460660C (en) 2001-11-27 2007-06-26 Weatherford/Lamb, Inc. Hydraulic-mechanical jar tool
CN108468524B (zh) * 2018-05-21 2023-10-03 中国石油天然气集团有限公司 连续管打捞节流器用铅印和判断节流器能否打捞的方法
CN113338832B (zh) * 2021-05-18 2023-10-20 四川伟创石油装备制造有限公司 一种液压双向震击器
CN117823072B (zh) * 2024-03-04 2024-05-03 四川职业技术学院 一种随钻液压式主被动震击器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735827A (en) * 1972-03-15 1973-05-29 Baker Oil Tools Inc Down-hole adjustable hydraulic fishing jar
US3797591A (en) * 1973-02-06 1974-03-19 Baker Oil Tools Inc Trigger mechanism for down-hole adjustable hydraulic fishing jar
US3851717A (en) * 1973-11-15 1974-12-03 Baker Oil Tools Inc Substantially constant time delay fishing jar
US4059167A (en) * 1977-02-04 1977-11-22 Baker International Corporation Hydraulic fishing jar having tandem piston arrangement
US4361195A (en) * 1980-12-08 1982-11-30 Evans Robert W Double acting hydraulic mechanism

Also Published As

Publication number Publication date
EP0110803A1 (en) 1984-06-13
JPS5996389A (ja) 1984-06-02
EP0110803B1 (en) 1986-12-30
JPH0459436B2 (enrdf_load_stackoverflow) 1992-09-22
MX157609A (es) 1988-12-05
CA1220779A (en) 1987-04-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DAILEY INTERNATIONAL, INC. (N.D.GESETZEN D. STAATE

8328 Change in the person/name/address of the agent

Free format text: ACKMANN, MENGES & DEMSKI PATENTANWAELTE, 80469 MUENCHEN

8381 Inventor (new situation)

Free format text: EVANS, ROBERT W.,, HUNTSVILLE, TEX.,, US