IE35672L - Blowout preventers. - Google Patents

Blowout preventers.

Info

Publication number
IE35672L
IE35672L IE711205A IE120571A IE35672L IE 35672 L IE35672 L IE 35672L IE 711205 A IE711205 A IE 711205A IE 120571 A IE120571 A IE 120571A IE 35672 L IE35672 L IE 35672L
Authority
IE
Ireland
Prior art keywords
bonnet
ram
preventer
piston
moving
Prior art date
Application number
IE711205A
Other versions
IE35672B1 (en
Original Assignee
Hydril 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 Hydril Co filed Critical Hydril Co
Publication of IE35672L publication Critical patent/IE35672L/en
Publication of IE35672B1 publication Critical patent/IE35672B1/en

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

Abstract

Blowout preventers of the ram-type, each having a bonnet which is detachably connected to the preventer body, and which bonnet is movable away from the preventer body to expose the ram therewith for permitting removal of the ram from the preventer for replacement or repair, wherein the ram piston and cylinder which are operable for moving the ram to and from its open and closed positions when the bonnet is secured to the preventer body are also operable for moving the bonnet away from and towards the preventer body when the bonnet is disconnected from the body. Detent means are provided for resisting relative movement between the ram and the body when the ram is in the open position and the bonnet is disconnected from the body, whereby the bonnet can be moved away from the body to the exposed ram position and then returned to reengage the bonnet with the body. Flexible hydraulic fluid conductor means is provided for operating the piston and for moving the cylinder relative to the piston. [US3647174A]
IE1205/71A 1970-09-25 1971-09-27 Blowout preventer IE35672B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7536070A 1970-09-25 1970-09-25

Publications (2)

Publication Number Publication Date
IE35672L true IE35672L (en) 1972-03-25
IE35672B1 IE35672B1 (en) 1976-04-14

Family

ID=22125188

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1205/71A IE35672B1 (en) 1970-09-25 1971-09-27 Blowout preventer

Country Status (8)

Country Link
US (1) US3647174A (en)
AU (1) AU3398271A (en)
CA (1) CA943058A (en)
DE (1) DE2148179C3 (en)
ES (1) ES395461A1 (en)
FR (1) FR2108612A5 (en)
IE (1) IE35672B1 (en)
NL (1) NL7113239A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007905A (en) * 1973-01-29 1977-02-15 Hydril Company Retrievable blow-out preventer ram seals
US3918478A (en) * 1974-02-11 1975-11-11 Hydril Co Blowout preventer with locking means
DE2722007A1 (en) * 1977-05-14 1978-12-14 Hydril Co Ram type well blow out preventer - has pressure responsive ratchet mechanism for locking rams in closed positions
US4437643A (en) * 1981-06-25 1984-03-20 Cameron Iron Works, Inc. Ram-type blowout preventer
US4582293A (en) * 1982-01-06 1986-04-15 Koomey Blowout Preventers, Inc. Hydraulically operated valves
US4504037A (en) * 1983-09-26 1985-03-12 Hydril Company Ram blowout preventer securing and retracting apparatus
US5430932A (en) * 1994-03-15 1995-07-11 Insta Valve Co. Ltd Apparatus for installing a valve on or into an existing pipe
US6125928A (en) * 1996-12-16 2000-10-03 Ab Grundstenen Ab (Metal Patent Whss Ab) System for controlling and stopping oil drilling fires
GB0121277D0 (en) * 2001-09-03 2001-10-24 Elmar Services Ltd Wireline valve actuator
US7331562B2 (en) * 2005-11-07 2008-02-19 Varco I/P, Inc. Blowout preventer with breech assembly
US8424607B2 (en) * 2006-04-25 2013-04-23 National Oilwell Varco, L.P. System and method for severing a tubular
US7367396B2 (en) 2006-04-25 2008-05-06 Varco I/P, Inc. Blowout preventers and methods of use
US8720565B2 (en) 2006-04-25 2014-05-13 National Oilwell Varco, L.P. Tubular severing system and method of using same
US8720564B2 (en) 2006-04-25 2014-05-13 National Oilwell Varco, L.P. Tubular severing system and method of using same
US8028755B2 (en) * 2007-12-14 2011-10-04 Clearwater International Llc Quick lock wireline valve/blow-out preventor and methods for making and using same
US8844898B2 (en) * 2009-03-31 2014-09-30 National Oilwell Varco, L.P. Blowout preventer with ram socketing
US8544538B2 (en) 2010-07-19 2013-10-01 National Oilwell Varco, L.P. System and method for sealing a wellbore
US8540017B2 (en) 2010-07-19 2013-09-24 National Oilwell Varco, L.P. Method and system for sealing a wellbore
US9022104B2 (en) 2010-09-29 2015-05-05 National Oilwell Varco, L.P. Blowout preventer blade assembly and method of using same
KR101697397B1 (en) 2011-03-09 2017-01-17 내셔널 오일웰 바르코 엘.피. Method and apparatus for sealing a wellbore
US9068427B2 (en) * 2012-07-19 2015-06-30 Cameron International Corporation Asymmetrical button for ram-type blowout preventers
WO2014130703A2 (en) 2013-02-21 2014-08-28 National Oilwell Varco, L.P. Blowout preventer monitoring system and method of using same
WO2016027210A1 (en) 2014-08-18 2016-02-25 Bharat Forge Limited An open die forging process for minimizing end losses and a product made using it
GB2567324A (en) * 2016-04-27 2019-04-10 Electrical Subsea & Drilling As Blow out preventer bonnet assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272222A (en) * 1963-10-28 1966-09-13 Cameron Iron Works Inc Blowout preventer
US3554480A (en) * 1968-01-16 1971-01-12 Cameron Iron Works Inc Blowout preventer
US3561526A (en) * 1969-09-03 1971-02-09 Cameron Iron Works Inc Pipe shearing ram assembly for blowout preventer

Also Published As

Publication number Publication date
SU446131A3 (en) 1974-10-05
NL7113239A (en) 1972-03-28
FR2108612A5 (en) 1972-05-19
AU3398271A (en) 1973-04-05
CA943058A (en) 1974-03-05
IE35672B1 (en) 1976-04-14
DE2148179B2 (en) 1978-02-16
DE2148179C3 (en) 1978-10-19
ES395461A1 (en) 1973-12-01
DE2148179A1 (en) 1972-03-30
US3647174A (en) 1972-03-07

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