NL7704762A - HYDRAULIC SHEARS FOR DEEP DRILLING. - Google Patents

HYDRAULIC SHEARS FOR DEEP DRILLING.

Info

Publication number
NL7704762A
NL7704762A NL7704762A NL7704762A NL7704762A NL 7704762 A NL7704762 A NL 7704762A NL 7704762 A NL7704762 A NL 7704762A NL 7704762 A NL7704762 A NL 7704762A NL 7704762 A NL7704762 A NL 7704762A
Authority
NL
Netherlands
Prior art keywords
deep drilling
hydraulic shears
shears
hydraulic
drilling
Prior art date
Application number
NL7704762A
Other languages
Dutch (nl)
Other versions
NL173990C (en
NL173990B (en
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 NL7704762A publication Critical patent/NL7704762A/en
Publication of NL173990B publication Critical patent/NL173990B/en
Application granted granted Critical
Publication of NL173990C publication Critical patent/NL173990C/en

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)
NLAANVRAGE7704762,A 1976-05-03 1977-04-29 HYDRAULIC YEAR FOR A DRILL COLUMN. NL173990C (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 (3)

Publication Number Publication Date
NL7704762A true NL7704762A (en) 1977-11-07
NL173990B NL173990B (en) 1983-11-01
NL173990C NL173990C (en) 1984-04-02

Family

ID=5976926

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7704762,A NL173990C (en) 1976-05-03 1977-04-29 HYDRAULIC YEAR FOR A DRILL COLUMN.

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
GB1546276A (en) 1979-05-23
DE2619472C2 (en) 1978-05-24
NO148495B (en) 1983-07-11
FR2350459B1 (en) 1982-09-10
CA1053656A (en) 1979-05-01
RO76323A (en) 1981-03-30
NL173990C (en) 1984-04-02
NL173990B (en) 1983-11-01
FR2350459A1 (en) 1977-12-02
IT1086639B (en) 1985-05-28
NO148495C (en) 1983-10-19
DE2619472B1 (en) 1977-10-13
NO771152L (en) 1977-11-04

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BC A request for examination has been filed
SNR Assignments of patents or rights arising from examined patent applications

Owner name: NORTON CHRISTENSEN, INC.

TNT Modifications of names of proprietors of patents or applicants of examined patent applications

Owner name: NORTON CHRISTENSEN, INC.

SNR Assignments of patents or rights arising from examined patent applications

Owner name: BAKER HUGHES INCORPORATED

V1 Lapsed because of non-payment of the annual fee

Effective date: 19951101