SE8802647D0 - DRILLING TANG - Google Patents

DRILLING TANG

Info

Publication number
SE8802647D0
SE8802647D0 SE8802647A SE8802647A SE8802647D0 SE 8802647 D0 SE8802647 D0 SE 8802647D0 SE 8802647 A SE8802647 A SE 8802647A SE 8802647 A SE8802647 A SE 8802647A SE 8802647 D0 SE8802647 D0 SE 8802647D0
Authority
SE
Sweden
Prior art keywords
drilling rod
drilling
rod
assembly
drill crown
Prior art date
Application number
SE8802647A
Other languages
Swedish (sv)
Other versions
SE469848B (en
SE8802647L (en
Inventor
P Nava
Original Assignee
Sandvik 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 Sandvik Ab filed Critical Sandvik Ab
Priority to SE8802647A priority Critical patent/SE469848B/en
Publication of SE8802647D0 publication Critical patent/SE8802647D0/en
Publication of SE8802647L publication Critical patent/SE8802647L/en
Publication of SE469848B publication Critical patent/SE469848B/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
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • 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

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 present invention concerns a drilling rod 11 which is intended to be used in a drilling line comprising a central rod assembly, in which the drilling rod 11 is included, for transmitting impact energy to a drill crown 28; 29 and a pipe assembly 12 surrounding the rod assembly for transmitting rotation to the drill crown 28; 29. The invention also concerns a drilling line component which includes a drilling rod according to the invention. In the abovementioned types of equipment, flushing medium is introduced into the space between drilling rod and pipe assembly. However, this construction principle entails disadvantages regarding control of the drilling rod located nearest to the drill crown. The characteristic feature of the present invention is that the drilling rod 11 is provided, at one end, with transverse and longitudinal flushing channels 16, 17, respectively, which communicate with each other. When the drilling rod 11 is mounted in a drilling line component 10 according to the invention, the drilling rod 11 is surrounded, at the end receiving the channel 17, by a guide 19. <IMAGE>
SE8802647A 1988-07-15 1988-07-15 Drilling rod and drilling rod component where the drilling line comprises a central rod assembly and surrounding pipe SE469848B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8802647A SE469848B (en) 1988-07-15 1988-07-15 Drilling rod and drilling rod component where the drilling line comprises a central rod assembly and surrounding pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8802647A SE469848B (en) 1988-07-15 1988-07-15 Drilling rod and drilling rod component where the drilling line comprises a central rod assembly and surrounding pipe

Publications (3)

Publication Number Publication Date
SE8802647D0 true SE8802647D0 (en) 1988-07-15
SE8802647L SE8802647L (en) 1990-01-16
SE469848B SE469848B (en) 1993-09-27

Family

ID=20372921

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8802647A SE469848B (en) 1988-07-15 1988-07-15 Drilling rod and drilling rod component where the drilling line comprises a central rod assembly and surrounding pipe

Country Status (1)

Country Link
SE (1) SE469848B (en)

Also Published As

Publication number Publication date
SE469848B (en) 1993-09-27
SE8802647L (en) 1990-01-16

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