CA970763A - Valve sleeve for use in association with oilfield hydraulic jar tool - Google Patents

Valve sleeve for use in association with oilfield hydraulic jar tool

Info

Publication number
CA970763A
CA970763A CA192,185A CA192185A CA970763A CA 970763 A CA970763 A CA 970763A CA 192185 A CA192185 A CA 192185A CA 970763 A CA970763 A CA 970763A
Authority
CA
Canada
Prior art keywords
association
valve sleeve
hydraulic jar
jar tool
oilfield hydraulic
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
CA192,185A
Inventor
Leonard Mason
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.)
Individual
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
Priority to CA192,185A priority Critical patent/CA970763A/en
Priority to DE19752504449 priority patent/DE2504449C3/en
Application granted granted Critical
Publication of CA970763A publication Critical patent/CA970763A/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)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
CA192,185A 1974-02-11 1974-02-11 Valve sleeve for use in association with oilfield hydraulic jar tool Expired CA970763A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA192,185A CA970763A (en) 1974-02-11 1974-02-11 Valve sleeve for use in association with oilfield hydraulic jar tool
DE19752504449 DE2504449C3 (en) 1974-02-11 1975-02-04 Hydraulic impact tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA192,185A CA970763A (en) 1974-02-11 1974-02-11 Valve sleeve for use in association with oilfield hydraulic jar tool

Publications (1)

Publication Number Publication Date
CA970763A true CA970763A (en) 1975-07-08

Family

ID=4099144

Family Applications (1)

Application Number Title Priority Date Filing Date
CA192,185A Expired CA970763A (en) 1974-02-11 1974-02-11 Valve sleeve for use in association with oilfield hydraulic jar tool

Country Status (2)

Country Link
CA (1) CA970763A (en)
DE (1) DE2504449C3 (en)

Families Citing this family (1)

* 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

Also Published As

Publication number Publication date
DE2504449A1 (en) 1975-08-14
DE2504449B2 (en) 1979-04-19
DE2504449C3 (en) 1979-12-06

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