SE0201888L - Rock drill bit - Google Patents

Rock drill bit

Info

Publication number
SE0201888L
SE0201888L SE0201888A SE0201888A SE0201888L SE 0201888 L SE0201888 L SE 0201888L SE 0201888 A SE0201888 A SE 0201888A SE 0201888 A SE0201888 A SE 0201888A SE 0201888 L SE0201888 L SE 0201888L
Authority
SE
Sweden
Prior art keywords
front face
area
relief
main body
drill bit
Prior art date
Application number
SE0201888A
Other languages
Swedish (sv)
Other versions
SE0201888D0 (en
SE524742C2 (en
Inventor
Mauro F Dobran
Kerry C Willett
Dino L Ryan
Original Assignee
Cubex Ltd
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 Cubex Ltd filed Critical Cubex Ltd
Priority to SE0201888A priority Critical patent/SE524742C2/en
Publication of SE0201888D0 publication Critical patent/SE0201888D0/en
Publication of SE0201888L publication Critical patent/SE0201888L/en
Publication of SE524742C2 publication Critical patent/SE524742C2/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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

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 drill bit comprises a main body, a front face, and an outer surface extending rearwards from the front face. A flush channel (11) extends through the main body to the front face and open ends of the flush channel at the front face are arranged to provide a fluid to an area at the front face, a number of contact points on the front face engaging the area. A flush groove extends from the open end of the flush channel outwards to the outer surface and relief bores (25) extend from the front face rearwards to a relief area behind the outer surface for providing a release for the fluid from the front face to the relief area. The relief bore is located within the flush channel between the open end and the outer surface such that the debris is flushed from the drilling area to an area behind the main body.
SE0201888A 2002-06-20 2002-06-20 Rock drill bit with channels for increasing relief from pressure of debris flushed by air and water mixture SE524742C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0201888A SE524742C2 (en) 2002-06-20 2002-06-20 Rock drill bit with channels for increasing relief from pressure of debris flushed by air and water mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0201888A SE524742C2 (en) 2002-06-20 2002-06-20 Rock drill bit with channels for increasing relief from pressure of debris flushed by air and water mixture

Publications (3)

Publication Number Publication Date
SE0201888D0 SE0201888D0 (en) 2002-06-20
SE0201888L true SE0201888L (en) 2003-12-21
SE524742C2 SE524742C2 (en) 2004-09-21

Family

ID=20288248

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0201888A SE524742C2 (en) 2002-06-20 2002-06-20 Rock drill bit with channels for increasing relief from pressure of debris flushed by air and water mixture

Country Status (1)

Country Link
SE (1) SE524742C2 (en)

Also Published As

Publication number Publication date
SE0201888D0 (en) 2002-06-20
SE524742C2 (en) 2004-09-21

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Legal Events

Date Code Title Description
NUG Patent has lapsed