FR1005620A - Foreuse - Google Patents

Foreuse

Info

Publication number
FR1005620A
FR1005620A FR1005620DA FR1005620A FR 1005620 A FR1005620 A FR 1005620A FR 1005620D A FR1005620D A FR 1005620DA FR 1005620 A FR1005620 A FR 1005620A
Authority
FR
France
Prior art keywords
drilling machine
drilling
machine
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.)
GEWERKSCHAFT EMSCHER LIPPE
Original Assignee
GEWERKSCHAFT EMSCHER LIPPE
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 GEWERKSCHAFT EMSCHER LIPPE filed Critical GEWERKSCHAFT EMSCHER LIPPE
Application granted granted Critical
Publication of FR1005620A publication Critical patent/FR1005620A/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
    • E21B10/00—Drill bits
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • 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
    • E21B17/22—Rods or pipes with helical structure

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)
FR1005620D 1947-08-26 1947-08-26 Foreuse Expired FR1005620A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1005620T 1947-08-26

Publications (1)

Publication Number Publication Date
FR1005620A true FR1005620A (fr) 1952-04-15

Family

ID=9564960

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1005620D Expired FR1005620A (fr) 1947-08-26 1947-08-26 Foreuse

Country Status (1)

Country Link
FR (1) FR1005620A (fr)

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