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SE9803268L - String drill string thread for striking rock drilling - Google Patents

String drill string thread for striking rock drilling

Info

Publication number
SE9803268L
SE9803268L SE9803268A SE9803268A SE9803268L SE 9803268 L SE9803268 L SE 9803268L SE 9803268 A SE9803268 A SE 9803268A SE 9803268 A SE9803268 A SE 9803268A SE 9803268 L SE9803268 L SE 9803268L
Authority
SE
Sweden
Prior art keywords
thread
string
drill string
rock drilling
striking rock
Prior art date
Application number
SE9803268A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE515517C2 (en
SE9803268D0 (en
Inventor
Christer Gustafsson
Original Assignee
Uniroc 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 Uniroc Ab filed Critical Uniroc Ab
Priority to SE9803268A priority Critical patent/SE515517C2/en
Publication of SE9803268D0 publication Critical patent/SE9803268D0/en
Priority to ZA200102511A priority patent/ZA200102511B/en
Priority to EP99954561A priority patent/EP1117898A1/en
Priority to AU10880/00A priority patent/AU753579B2/en
Priority to PCT/SE1999/001653 priority patent/WO2000019057A1/en
Priority to CA002345707A priority patent/CA2345707A1/en
Publication of SE9803268L publication Critical patent/SE9803268L/en
Publication of SE515517C2 publication Critical patent/SE515517C2/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods

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

The thread coupling is provided with a male thread (4) and a female thread (5) cooperating therewith. The male thread is arranged on a first drill string element (3) provided with a first impact surface (6). The female thread is arranged on a second drill string element (2) which is provided with a second impact surface (7). The male thread (4) has an axially variable pitch. And the female thread (5) has a thread opening (8) which is wider than the crest (9) of the male thread.
SE9803268A 1998-09-28 1998-09-28 String drill string thread for striking rock drilling SE515517C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9803268A SE515517C2 (en) 1998-09-28 1998-09-28 String drill string thread for striking rock drilling
ZA200102511A ZA200102511B (en) 1998-09-28 1999-09-22 Thread coupling for a drill string for percussive rock drilling.
EP99954561A EP1117898A1 (en) 1998-09-28 1999-09-22 Thread coupling for a drill string for percussive rock drilling
AU10880/00A AU753579B2 (en) 1998-09-28 1999-09-22 Thread coupling for a drill string for percussive rock drilling
PCT/SE1999/001653 WO2000019057A1 (en) 1998-09-28 1999-09-22 Thread coupling for a drill string for percussive rock drilling
CA002345707A CA2345707A1 (en) 1998-09-28 1999-09-22 Thread coupling for a drill string for percussive rock drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9803268A SE515517C2 (en) 1998-09-28 1998-09-28 String drill string thread for striking rock drilling

Publications (3)

Publication Number Publication Date
SE9803268D0 SE9803268D0 (en) 1998-09-28
SE9803268L true SE9803268L (en) 2000-03-29
SE515517C2 SE515517C2 (en) 2001-08-20

Family

ID=20412727

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9803268A SE515517C2 (en) 1998-09-28 1998-09-28 String drill string thread for striking rock drilling

Country Status (6)

Country Link
EP (1) EP1117898A1 (en)
AU (1) AU753579B2 (en)
CA (1) CA2345707A1 (en)
SE (1) SE515517C2 (en)
WO (1) WO2000019057A1 (en)
ZA (1) ZA200102511B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3095954B1 (en) 2015-05-22 2024-05-15 Sandvik Intellectual Property AB Drill rod or adaptor with strengthened spigot coupling

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8323348D0 (en) * 1983-08-31 1983-10-05 Hunting Oilfield Services Ltd Pipe connectors
GB2309276A (en) * 1996-01-20 1997-07-23 Boart Longyear Ltd Threaded joint

Also Published As

Publication number Publication date
ZA200102511B (en) 2002-03-27
WO2000019057A1 (en) 2000-04-06
SE515517C2 (en) 2001-08-20
SE9803268D0 (en) 1998-09-28
AU1088000A (en) 2000-04-17
CA2345707A1 (en) 2000-04-06
AU753579B2 (en) 2002-10-24
EP1117898A1 (en) 2001-07-25

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Legal Events

Date Code Title Description
NUG Patent has lapsed