FR1299722A - Improvements to perforators - Google Patents

Improvements to perforators

Info

Publication number
FR1299722A
FR1299722A FR865207A FR865207A FR1299722A FR 1299722 A FR1299722 A FR 1299722A FR 865207 A FR865207 A FR 865207A FR 865207 A FR865207 A FR 865207A FR 1299722 A FR1299722 A FR 1299722A
Authority
FR
France
Prior art keywords
perforators
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
FR865207A
Other languages
French (fr)
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.)
FORGES ET ACIERIES DU SAUT DU
Original Assignee
FORGES ET ACIERIES DU SAUT DU
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 FORGES ET ACIERIES DU SAUT DU filed Critical FORGES ET ACIERIES DU SAUT DU
Priority to FR865207A priority Critical patent/FR1299722A/en
Application granted granted Critical
Publication of FR1299722A publication Critical patent/FR1299722A/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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units

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)
FR865207A 1961-06-16 1961-06-16 Improvements to perforators Expired FR1299722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR865207A FR1299722A (en) 1961-06-16 1961-06-16 Improvements to perforators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR865207A FR1299722A (en) 1961-06-16 1961-06-16 Improvements to perforators

Publications (1)

Publication Number Publication Date
FR1299722A true FR1299722A (en) 1962-07-27

Family

ID=8757454

Family Applications (1)

Application Number Title Priority Date Filing Date
FR865207A Expired FR1299722A (en) 1961-06-16 1961-06-16 Improvements to perforators

Country Status (1)

Country Link
FR (1) FR1299722A (en)

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