FR492851A - Improvements to the process and the apparatus for drilling and widening boreholes - Google Patents

Improvements to the process and the apparatus for drilling and widening boreholes

Info

Publication number
FR492851A
FR492851A FR492851DA FR492851A FR 492851 A FR492851 A FR 492851A FR 492851D A FR492851D A FR 492851DA FR 492851 A FR492851 A FR 492851A
Authority
FR
France
Prior art keywords
boreholes
widening
drilling
widening boreholes
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
Other languages
French (fr)
Inventor
Howard Robard Hughes
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR492851A publication Critical patent/FR492851A/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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable

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)
FR492851D 1916-05-11 1916-12-04 Improvements to the process and the apparatus for drilling and widening boreholes Expired FR492851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US492851XA 1916-05-11 1916-05-11

Publications (1)

Publication Number Publication Date
FR492851A true FR492851A (en) 1919-07-24

Family

ID=1528667

Family Applications (1)

Application Number Title Priority Date Filing Date
FR492851D Expired FR492851A (en) 1916-05-11 1916-12-04 Improvements to the process and the apparatus for drilling and widening boreholes

Country Status (1)

Country Link
FR (1) FR492851A (en)

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