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1. WO2020112269 - ANNULAR SAFETY VALVE

Publication Number WO/2020/112269
Publication Date 04.06.2020
International Application No. PCT/US2019/056655
International Filing Date 17.10.2019
IPC
E21B 34/10 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
34Valve arrangements for boreholes or wells
06in wells
10operated by control fluid supplied from outside the borehole
F16K 15/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
06with guided stems
CPC
E21B 34/10
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
34Valve arrangements for boreholes or wells
06in wells
10operated by control fluid supplied from above ground
F16K 1/2057
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
1Lift valves ; or globe valves; , i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
16with pivoted closure-members
18with pivoted discs or flaps
20with axis of rotation arranged externally of valve member
2042Special features or arrangements of the sealing
2057the sealing being arranged on the valve seat
F16K 17/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves, ; e.g. pressure relief valves
02opening on surplus pressure on one side; closing on insufficient pressure on one side
F16K 39/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
39Devices for relieving the pressure on the sealing faces
02for lift valves
Applicants
  • HALLIBURTON ENERGY SERVICES, INC. [US]/[US]
Inventors
  • BROWN, Irvine, Cardno
  • TAYLOR, Ronald, George
  • DAVIES, Katherine, Ann
  • INGLIS, Peter, Derek, Walter
Agents
  • GARDNER, Jason, D.
  • BUSSEY, Megan, E.
Priority Data
16/655,35917.10.2019US
62/773,64030.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ANNULAR SAFETY VALVE
(FR) SOUPAPE DE SÉCURITÉ ANNULAIRE
Abstract
(EN)
An annular safety valve that is positionable in a wellbore may include a housing having an opening extending through the housing to allow to allow pressure to transmit between a first annular area of the wellbore below the annular safety valve and a second annular area of the wellbore above the annular safety valve. The housing can define the opening by a seat face. A poppet may extend through the opening. A groove may at least partially surrounding the seat face for maintaining a shape of the seat face in response to an increase in pressure in the first area of the wellbore. The shape of the seat face may correspond to a surface of the poppet for preventing pressure from transmitting between the first annular area of the wellbore and the second annular area of the wellbore when the annular safety valve is in a closed position.
(FR)
L'invention concerne une soupape de sécurité annulaire qui peut être positionnée dans un puits de forage, laquelle peut comprendre un boîtier ayant une ouverture s'étendant à travers le boîtier pour permettre à une pression d'être transmise entre une première zone annulaire du puits de forage au-dessous de la soupape de sécurité annulaire et une seconde zone annulaire du puits de forage au-dessus de la soupape de sécurité annulaire. Le boîtier peut délimiter l'ouverture par une face de siège. Un champignon peut s'étendre à travers l'ouverture. Une rainure peut entourer au moins partiellement la face de siège pour maintenir une forme de la face de siège en réponse à une augmentation de pression dans la première zone du puits de forage. La forme de la face de siège peut correspondre à une surface du champignon pour empêcher la pression d'être transmise entre la première zone annulaire du puits de forage et la seconde zone annulaire du puits de forage lorsque la soupape de sécurité annulaire est dans une position fermée.
Also published as
Latest bibliographic data on file with the International Bureau