FR770879A - Outils de forage - Google Patents

Outils de forage

Info

Publication number
FR770879A
FR770879A FR770879DA FR770879A FR 770879 A FR770879 A FR 770879A FR 770879D A FR770879D A FR 770879DA FR 770879 A FR770879 A FR 770879A
Authority
FR
France
Prior art keywords
drilling tools
drilling
tools
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Application granted granted Critical
Publication of FR770879A publication Critical patent/FR770879A/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
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods

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)
FR770879D 1933-04-19 1934-03-28 Outils de forage Expired FR770879A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US770879XA 1933-04-19 1933-04-19

Publications (1)

Publication Number Publication Date
FR770879A true FR770879A (fr) 1934-09-22

Family

ID=22136001

Family Applications (1)

Application Number Title Priority Date Filing Date
FR770879D Expired FR770879A (fr) 1933-04-19 1934-03-28 Outils de forage

Country Status (1)

Country Link
FR (1) FR770879A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2336520A1 (fr) * 1975-12-24 1977-07-22 Schmidt Paul Appareil de forage autopropulse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2336520A1 (fr) * 1975-12-24 1977-07-22 Schmidt Paul Appareil de forage autopropulse

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