CA1220779A - Single acting hydraulic fishing jar - Google Patents

Single acting hydraulic fishing jar

Info

Publication number
CA1220779A
CA1220779A CA000436923A CA436923A CA1220779A CA 1220779 A CA1220779 A CA 1220779A CA 000436923 A CA000436923 A CA 000436923A CA 436923 A CA436923 A CA 436923A CA 1220779 A CA1220779 A CA 1220779A
Authority
CA
Canada
Prior art keywords
chamber
movement
tubular
valve
piston
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
CA000436923A
Other languages
English (en)
French (fr)
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 CA1220779A publication Critical patent/CA1220779A/en
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)
CA000436923A 1982-11-22 1983-09-16 Single acting hydraulic fishing jar Expired CA1220779A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44360582A 1982-11-22 1982-11-22
US443,605 1982-11-22

Publications (1)

Publication Number Publication Date
CA1220779A true CA1220779A (en) 1987-04-21

Family

ID=23761476

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000436923A Expired CA1220779A (en) 1982-11-22 1983-09-16 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
DE3368716D1 (en) 1987-02-05
JPS5996389A (ja) 1984-06-02
EP0110803B1 (en) 1986-12-30
JPH0459436B2 (enrdf_load_stackoverflow) 1992-09-22
MX157609A (es) 1988-12-05

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Legal Events

Date Code Title Description
MKEX Expiry