CA2777203C - Obturateur anti-eruption et pistons - Google Patents

Obturateur anti-eruption et pistons Download PDF

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Publication number
CA2777203C
CA2777203C CA2777203A CA2777203A CA2777203C CA 2777203 C CA2777203 C CA 2777203C CA 2777203 A CA2777203 A CA 2777203A CA 2777203 A CA2777203 A CA 2777203A CA 2777203 C CA2777203 C CA 2777203C
Authority
CA
Canada
Prior art keywords
ram
seal
rope packing
front face
blowout preventer
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.)
Active
Application number
CA2777203A
Other languages
English (en)
Other versions
CA2777203A1 (fr
Inventor
Tianle Guo
Tony M. Lam
Keith David Farquharson
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.)
Stream Flo Industries Ltd
Original Assignee
Stream Flo Industries Ltd
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 Stream Flo Industries Ltd filed Critical Stream Flo Industries Ltd
Priority to CA2777203A priority Critical patent/CA2777203C/fr
Publication of CA2777203A1 publication Critical patent/CA2777203A1/fr
Application granted granted Critical
Publication of CA2777203C publication Critical patent/CA2777203C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Sealing Devices (AREA)

Abstract

Un obturateur anti-éruption de type à piston comprend un joint sur chaque piston, se prolongeant sur la face avant, vers larrière puis sur la portion supérieure ou la portion inférieure du piston. Chaque piston forme une portion de bord dattaque au-dessus et en dessous du joint de face avant, de sorte que, lorsque les pistons opposés se déplacent en position détanchéité étendue, les portions de bord dattaque des pistons saboutent et se pressent lune contre lautre, provoquant un mouvement généralement vertical des pistons qui ramène les joints sur les faces avant en engagement détanchéité entre eux et qui transmettent lénergie aux joints se prolongeant sur les portions de dessus ou de dessous contre les trous de piston. La face avant de chaque piston peut comporter une portion inclinée qui est inclinée vers le trou central. Les joints de garniture à corde peuvent être présents sur les pistons, mais avec un décalage vertical aux faces avant des pistons de sorte que les joints de garniture à cordon sur les faces avant opposées font étanchéité entre eux, mais avec le décalage vertical.
CA2777203A 2012-05-16 2012-05-16 Obturateur anti-eruption et pistons Active CA2777203C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2777203A CA2777203C (fr) 2012-05-16 2012-05-16 Obturateur anti-eruption et pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2777203A CA2777203C (fr) 2012-05-16 2012-05-16 Obturateur anti-eruption et pistons

Publications (2)

Publication Number Publication Date
CA2777203A1 CA2777203A1 (fr) 2013-11-16
CA2777203C true CA2777203C (fr) 2017-09-12

Family

ID=49577940

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2777203A Active CA2777203C (fr) 2012-05-16 2012-05-16 Obturateur anti-eruption et pistons

Country Status (1)

Country Link
CA (1) CA2777203C (fr)

Also Published As

Publication number Publication date
CA2777203A1 (fr) 2013-11-16

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