FR565801A - Device to prevent gas expulsion from well drilling rigs - Google Patents

Device to prevent gas expulsion from well drilling rigs

Info

Publication number
FR565801A
FR565801A FR565801DA FR565801A FR 565801 A FR565801 A FR 565801A FR 565801D A FR565801D A FR 565801DA FR 565801 A FR565801 A FR 565801A
Authority
FR
France
Prior art keywords
well drilling
prevent gas
drilling rigs
gas expulsion
expulsion
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
French (fr)
Inventor
Thomas Joseph Kelly
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 filed Critical
Application granted granted Critical
Publication of FR565801A publication Critical patent/FR565801A/en
Expired legal-status Critical Current

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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
    • E21B33/061—Ram-type blow-out preventers, e.g. with pivoting rams
    • E21B33/062—Ram-type blow-out preventers, e.g. with pivoting rams with sliding rams
FR565801D 1923-05-04 1923-05-04 Device to prevent gas expulsion from well drilling rigs Expired FR565801A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR565801T 1923-05-04

Publications (1)

Publication Number Publication Date
FR565801A true FR565801A (en) 1924-02-05

Family

ID=8946671

Family Applications (1)

Application Number Title Priority Date Filing Date
FR565801D Expired FR565801A (en) 1923-05-04 1923-05-04 Device to prevent gas expulsion from well drilling rigs

Country Status (1)

Country Link
FR (1) FR565801A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394738A1 (en) * 1977-06-17 1979-01-12 Lissmyr Per Olof CLOSING DEVICE FOR A PIPE END

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394738A1 (en) * 1977-06-17 1979-01-12 Lissmyr Per Olof CLOSING DEVICE FOR A PIPE END

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