FR1049831A - Dispositif de forage - Google Patents

Dispositif de forage

Info

Publication number
FR1049831A
FR1049831A FR1049831DA FR1049831A FR 1049831 A FR1049831 A FR 1049831A FR 1049831D A FR1049831D A FR 1049831DA FR 1049831 A FR1049831 A FR 1049831A
Authority
FR
France
Prior art keywords
drilling device
drilling
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.)
National Coal Board
Original Assignee
National Coal Board
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 National Coal Board filed Critical National Coal Board
Application granted granted Critical
Publication of FR1049831A publication Critical patent/FR1049831A/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/18—Pipes provided with plural fluid passages

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)
FR1049831D 1951-01-25 1952-01-24 Dispositif de forage Expired FR1049831A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1049831X 1951-01-25

Publications (1)

Publication Number Publication Date
FR1049831A true FR1049831A (fr) 1954-01-04

Family

ID=10870508

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1049831D Expired FR1049831A (fr) 1951-01-25 1952-01-24 Dispositif de forage

Country Status (1)

Country Link
FR (1) FR1049831A (fr)

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