SE8203655L - DEVICE FOR CONNECTING A DRILL CORD - Google Patents

DEVICE FOR CONNECTING A DRILL CORD

Info

Publication number
SE8203655L
SE8203655L SE8203655A SE8203655A SE8203655L SE 8203655 L SE8203655 L SE 8203655L SE 8203655 A SE8203655 A SE 8203655A SE 8203655 A SE8203655 A SE 8203655A SE 8203655 L SE8203655 L SE 8203655L
Authority
SE
Sweden
Prior art keywords
drilling machine
drill
cord
uncoupling
cheap
Prior art date
Application number
SE8203655A
Other languages
Swedish (sv)
Other versions
SE448016B (en
Inventor
J O A Hilding
K A G Nilsson
Original Assignee
Atlas Copco 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 Atlas Copco Ab filed Critical Atlas Copco Ab
Priority to SE8203655A priority Critical patent/SE448016B/en
Priority to FI832080A priority patent/FI79592C/en
Priority to NO832113A priority patent/NO161939C/en
Publication of SE8203655L publication Critical patent/SE8203655L/en
Publication of SE448016B publication Critical patent/SE448016B/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

Method is described for uncoupling a drill string that comprises several sections which are coupled via threaded sleeves. Each rod section is joined to an adapter rod on a drilling machine. A braking device counteracts any relative motion between the first coupling sleeve and the drilling machine. Method is simple and cheap. (Provisional Basic previously advised in Week 8406)
SE8203655A 1982-06-11 1982-06-11 Uncoupling drill string SE448016B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8203655A SE448016B (en) 1982-06-11 1982-06-11 Uncoupling drill string
FI832080A FI79592C (en) 1982-06-11 1983-06-09 Device for disassembly of a drill string
NO832113A NO161939C (en) 1982-06-11 1983-06-10 DEVICE FOR REMOVAL OF A BORING RANGE EXISTING BORING STRING.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8203655A SE448016B (en) 1982-06-11 1982-06-11 Uncoupling drill string

Publications (2)

Publication Number Publication Date
SE8203655L true SE8203655L (en) 1983-12-12
SE448016B SE448016B (en) 1987-01-12

Family

ID=20347053

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8203655A SE448016B (en) 1982-06-11 1982-06-11 Uncoupling drill string

Country Status (3)

Country Link
FI (1) FI79592C (en)
NO (1) NO161939C (en)
SE (1) SE448016B (en)

Also Published As

Publication number Publication date
NO161939B (en) 1989-07-03
NO832113L (en) 1983-12-12
SE448016B (en) 1987-01-12
FI79592C (en) 1990-01-10
FI832080L (en) 1983-12-12
FI832080A0 (en) 1983-06-09
FI79592B (en) 1989-09-29
NO161939C (en) 1989-10-11

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