CA726568A - Underdrilling bit - Google Patents

Underdrilling bit

Info

Publication number
CA726568A
CA726568A CA726568DA CA726568A CA 726568 A CA726568 A CA 726568A CA 726568D A CA726568D A CA 726568DA CA 726568 A CA726568 A CA 726568A
Authority
CA
Canada
Prior art keywords
underdrilling
bit
underdrilling 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
Inventor
M. Cleary James
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.)
Atlantic Richfield Co
Original Assignee
Atlantic Refining Co
Publication date
Application granted granted Critical
Publication of CA726568A publication Critical patent/CA726568A/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
    • E21B10/40—Percussion drill bits with leading portion

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)
CA726568D Underdrilling bit Expired CA726568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA726568T

Publications (1)

Publication Number Publication Date
CA726568A true CA726568A (en) 1966-01-25

Family

ID=36065475

Family Applications (1)

Application Number Title Priority Date Filing Date
CA726568D Expired CA726568A (en) Underdrilling bit

Country Status (1)

Country Link
CA (1) CA726568A (en)

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