GB627196A - Improvements in or relating to control heads and blow-out preventers for well bores - Google Patents

Improvements in or relating to control heads and blow-out preventers for well bores

Info

Publication number
GB627196A
GB627196A GB2275147A GB2275147A GB627196A GB 627196 A GB627196 A GB 627196A GB 2275147 A GB2275147 A GB 2275147A GB 2275147 A GB2275147 A GB 2275147A GB 627196 A GB627196 A GB 627196A
Authority
GB
United Kingdom
Prior art keywords
packer
annulus
plastic
pressure
plates
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
GB2275147A
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.)
Hydril LLC
Original Assignee
Hydril LLC
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
Priority to US627196XA priority Critical
Application filed by Hydril LLC filed Critical Hydril LLC
Publication of GB627196A publication Critical patent/GB627196A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/02Surface sealing or packing
    • E21B33/03Well heads; Setting-up thereof
    • E21B33/06Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers

Abstract

627,196. Well-drilling equipment. HYDRIL CORPORATION. Aug. 15, 1947, No. 22751. Convention date, Aug. 16, 1946. [Class 85] A combined control head and blow-out preventer is characterised in that the plastic packer annulus P is confined between two series of segmental plates 63, 64, which are keyed to the annulus and abut against shoulders formed in the casing, the shoulders limiting vertical movement of the annulus. Radial inwardlydirected pressure is applied to the annulus either by the vertical movement of a piston 41 having a conical bore complimentary to the circumferential face of the packer or by vertical pressure on an outer plastic annulus, the radial pressure causing plastic flow inwards to seal off the bore of the control head. Verticallyopposite plates in each series may be rigidly coupled by a vertical rib 65 moulded within the packer or fitted in a peripheral slot in the packer so that flow of the plastic packer on the application of a radial pressure carries the two series of plates inwardly to assist in backing-up that portion of the plastic packer closing the bore. In the case when the opposite series of plates are not rigidly interconnected, each plate overlaps an adjacent one and radial movement is guided by an abutment pin on each plate, the pin moving in a slot formed in a ring secured to the casing. The back vertical rib may have transverse plates to assist in the control of the flow of the plastic packer. The piston may be so formed that both the well pressure and an external source of pressure under the control of the driller may act simultaneously on the piston.
GB2275147A 1946-08-16 1947-08-15 Improvements in or relating to control heads and blow-out preventers for well bores Expired GB627196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US627196XA true 1946-08-16 1946-08-16

Publications (1)

Publication Number Publication Date
GB627196A true GB627196A (en) 1949-08-02

Family

ID=22044357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2275147A Expired GB627196A (en) 1946-08-16 1947-08-15 Improvements in or relating to control heads and blow-out preventers for well bores

Country Status (1)

Country Link
GB (1) GB627196A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400612A1 (en) * 1977-08-15 1979-03-16 Hydril Co SEAL has pieces oblique reinforcing REPORTED for blowout preventer
FR2484012A1 (en) * 1980-06-05 1981-12-11 Nl Industries Inc Annular anti-eruption shutter for oil or gas drilling installation
GB2471225A (en) * 2005-05-06 2010-12-22 Weatherford Lamb Solid rubber packer for a rotating control device
GB2489265A (en) * 2011-03-23 2012-09-26 Managed Pressure Operations Annular Blow-out Preventer
US9004178B2 (en) 2012-03-12 2015-04-14 Managed Pressure Operations Pte Ltd. Blowout preventer assembly
US9605502B2 (en) 2012-04-11 2017-03-28 Managed Pressure Operations Pte Ltd Method of handling a gas influx in a riser
US10309191B2 (en) 2012-03-12 2019-06-04 Managed Pressure Operations Pte. Ltd. Method of and apparatus for drilling a subterranean wellbore

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400612A1 (en) * 1977-08-15 1979-03-16 Hydril Co SEAL has pieces oblique reinforcing REPORTED for blowout preventer
FR2484012A1 (en) * 1980-06-05 1981-12-11 Nl Industries Inc Annular anti-eruption shutter for oil or gas drilling installation
GB2471225A (en) * 2005-05-06 2010-12-22 Weatherford Lamb Solid rubber packer for a rotating control device
GB2471225B (en) * 2005-05-06 2011-04-13 Weatherford Lamb Solid rubber packer for a rotating control device
US9212532B2 (en) 2010-04-13 2015-12-15 Managed Pressure Operations PTE, Limited Blowout preventer assembly
GB2489265A (en) * 2011-03-23 2012-09-26 Managed Pressure Operations Annular Blow-out Preventer
US9488031B2 (en) 2011-03-23 2016-11-08 Managed Pressure Operations Pte. Ltd. Blow out preventer
US9605504B2 (en) 2011-03-23 2017-03-28 Managed Pressure Operations Pte Ltd Sealing assembly
GB2489265B (en) * 2011-03-23 2017-09-20 Managed Pressure Operations Blow out preventer
US9004178B2 (en) 2012-03-12 2015-04-14 Managed Pressure Operations Pte Ltd. Blowout preventer assembly
US10309191B2 (en) 2012-03-12 2019-06-04 Managed Pressure Operations Pte. Ltd. Method of and apparatus for drilling a subterranean wellbore
US9605502B2 (en) 2012-04-11 2017-03-28 Managed Pressure Operations Pte Ltd Method of handling a gas influx in a riser

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