BE437364A - - Google Patents

Info

Publication number
BE437364A
BE437364A BE437364DA BE437364A BE 437364 A BE437364 A BE 437364A BE 437364D A BE437364D A BE 437364DA BE 437364 A BE437364 A BE 437364A
Authority
BE
Belgium
Application number
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.)
Publication of BE437364A publication Critical patent/BE437364A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/006—Means for anchoring the drilling machine to the ground
BE437364D 1938-12-16 BE437364A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR854153T 1938-12-16

Publications (1)

Publication Number Publication Date
BE437364A true BE437364A (fr)

Family

ID=9327568

Family Applications (1)

Application Number Title Priority Date Filing Date
BE437364D BE437364A (fr) 1938-12-16

Country Status (2)

Country Link
BE (1) BE437364A (fr)
FR (1) FR854153A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448623A1 (fr) * 1979-02-06 1980-09-05 Secoma Nez de perforatrice

Also Published As

Publication number Publication date
FR854153A (fr) 1940-04-06

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