ZA843410B - Drilling equipment - Google Patents

Drilling equipment

Info

Publication number
ZA843410B
ZA843410B ZA843410A ZA843410A ZA843410B ZA 843410 B ZA843410 B ZA 843410B ZA 843410 A ZA843410 A ZA 843410A ZA 843410 A ZA843410 A ZA 843410A ZA 843410 B ZA843410 B ZA 843410B
Authority
ZA
South Africa
Prior art keywords
drilling equipment
drilling
equipment
Prior art date
Application number
ZA843410A
Inventor
Jan-Erik Norberg
Jorgen Richard Almgren
Original Assignee
Trelleborg Ab
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 Trelleborg Ab filed Critical Trelleborg Ab
Publication of ZA843410B publication Critical patent/ZA843410B/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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Check Valves (AREA)
ZA843410A 1983-05-06 1984-05-07 Drilling equipment ZA843410B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8302599A SE8302599L (en) 1983-05-06 1983-05-06 DEVICE FOR A DRILL EQUIPMENT

Publications (1)

Publication Number Publication Date
ZA843410B true ZA843410B (en) 1984-12-24

Family

ID=20351112

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA843410A ZA843410B (en) 1983-05-06 1984-05-07 Drilling equipment

Country Status (6)

Country Link
EP (1) EP0142545A1 (en)
CA (1) CA1213879A (en)
IT (1) IT1174076B (en)
SE (1) SE8302599L (en)
WO (1) WO1984004562A1 (en)
ZA (1) ZA843410B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578365A (en) * 1984-11-26 1986-03-25 General Electric Company High thermal conductivity ceramic body of aluminum nitride
SE466319B (en) * 1989-03-07 1992-01-27 Atlas Copco Constr & Mining SEALING DEVICE FOR WASHING RINSE DURING BATTLE MOUNTAIN DRILLING

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2859733A (en) * 1955-11-23 1958-11-11 Bassinger Tool Company Fluid actuated impact tool
US4106571A (en) * 1976-12-06 1978-08-15 Reed Tool Co. Pneumatic impact drilling tool
SE413929B (en) * 1977-09-02 1980-06-30 Trelleborgs Gummifabriks Ab An injection

Also Published As

Publication number Publication date
IT1174076B (en) 1987-07-01
SE8302599D0 (en) 1983-05-06
IT8420796A1 (en) 1985-11-04
IT8420796A0 (en) 1984-05-04
WO1984004562A1 (en) 1984-11-22
CA1213879A (en) 1986-11-12
SE8302599L (en) 1984-11-07
EP0142545A1 (en) 1985-05-29

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