GB1201489A - Improvements in percussive well drill bit - Google Patents

Improvements in percussive well drill bit

Info

Publication number
GB1201489A
GB1201489A GB5292567A GB5292567A GB1201489A GB 1201489 A GB1201489 A GB 1201489A GB 5292567 A GB5292567 A GB 5292567A GB 5292567 A GB5292567 A GB 5292567A GB 1201489 A GB1201489 A GB 1201489A
Authority
GB
United Kingdom
Prior art keywords
central passage
well drill
valve
percussive
drill bit
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5292567A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco AB
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
Publication of GB1201489A publication Critical patent/GB1201489A/en
Expired legal-status Critical Current

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)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
GB5292567A 1966-11-30 1967-11-21 Improvements in percussive well drill bit Expired GB1201489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1634566 1966-11-30

Publications (1)

Publication Number Publication Date
GB1201489A true GB1201489A (en) 1970-08-05

Family

ID=20302098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5292567A Expired GB1201489A (en) 1966-11-30 1967-11-21 Improvements in percussive well drill bit

Country Status (2)

Country Link
GB (1) GB1201489A (enrdf_load_stackoverflow)
NO (1) NO119787B (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NO119787B (enrdf_load_stackoverflow) 1970-07-06

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees