FR1142829A - Perfectionnements aux trépans de forage - Google Patents

Perfectionnements aux trépans de forage

Info

Publication number
FR1142829A
FR1142829A FR1142829DA FR1142829A FR 1142829 A FR1142829 A FR 1142829A FR 1142829D A FR1142829D A FR 1142829DA FR 1142829 A FR1142829 A FR 1142829A
Authority
FR
France
Prior art keywords
drill bit
drill
bit
bit improvements
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
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.)
RORPRODUKTER
Original Assignee
RORPRODUKTER
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 RORPRODUKTER filed Critical RORPRODUKTER
Application granted granted Critical
Publication of FR1142829A publication Critical patent/FR1142829A/fr
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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/08—Down-hole impacting means, e.g. hammers impact being obtained by gravity only, e.g. with lost-motion connection

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)
FR1142829D 1955-03-12 1956-03-08 Perfectionnements aux trépans de forage Expired FR1142829A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1142829X 1955-03-12

Publications (1)

Publication Number Publication Date
FR1142829A true FR1142829A (fr) 1957-09-23

Family

ID=20420867

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1142829D Expired FR1142829A (fr) 1955-03-12 1956-03-08 Perfectionnements aux trépans de forage

Country Status (1)

Country Link
FR (1) FR1142829A (fr)

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