GB1546276A - Hydraulic jars for bore hole drilling - Google Patents

Hydraulic jars for bore hole drilling

Info

Publication number
GB1546276A
GB1546276A GB17917/77A GB1791777A GB1546276A GB 1546276 A GB1546276 A GB 1546276A GB 17917/77 A GB17917/77 A GB 17917/77A GB 1791777 A GB1791777 A GB 1791777A GB 1546276 A GB1546276 A GB 1546276A
Authority
GB
United Kingdom
Prior art keywords
bore hole
hole drilling
hydraulic jars
jars
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
GB17917/77A
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.)
Norton Christensen Inc
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 GB1546276A publication Critical patent/GB1546276A/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)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
GB17917/77A 1976-05-03 1977-04-29 Hydraulic jars for bore hole drilling Expired GB1546276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2619472A DE2619472C2 (en) 1976-05-03 1976-05-03 Hydraulic hammer shears for deep drilling

Publications (1)

Publication Number Publication Date
GB1546276A true GB1546276A (en) 1979-05-23

Family

ID=5976926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17917/77A Expired GB1546276A (en) 1976-05-03 1977-04-29 Hydraulic jars for bore hole drilling

Country Status (8)

Country Link
CA (1) CA1053656A (en)
DE (1) DE2619472C2 (en)
FR (1) FR2350459A1 (en)
GB (1) GB1546276A (en)
IT (1) IT1086639B (en)
NL (1) NL173990C (en)
NO (1) NO148495C (en)
RO (1) RO76323A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385668A (en) * 1981-02-25 1983-05-31 Turbo Resources Ltd. Inner pipe support arrangement for double-walled drill pipe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2029609A (en) * 1933-08-07 1936-02-04 Burns Erwin Well tool
US2876993A (en) * 1955-07-22 1959-03-10 Donald Q Hooks Jar device for pumps
US3406770A (en) * 1966-06-27 1968-10-22 Roy L Arterbury Jarring tool
US3912026A (en) * 1974-02-25 1975-10-14 Baker Oil Tools Inc Fluid pressure locked well drilling tool

Also Published As

Publication number Publication date
DE2619472B1 (en) 1977-10-13
FR2350459A1 (en) 1977-12-02
NL173990B (en) 1983-11-01
NL7704762A (en) 1977-11-07
NO148495C (en) 1983-10-19
DE2619472C2 (en) 1978-05-24
RO76323A (en) 1981-03-30
FR2350459B1 (en) 1982-09-10
NL173990C (en) 1984-04-02
NO771152L (en) 1977-11-04
NO148495B (en) 1983-07-11
IT1086639B (en) 1985-05-28
CA1053656A (en) 1979-05-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950429