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公开(公告)号：US11920431B2
公开(公告)日：2024-03-05
申请号：US17756687
申请日：2020-11-04
申请人： Interwell Norway AS
IPC分类号： E21B34/10
CPC分类号： E21B34/102 , E21B2200/05
摘要： A valve assembly for connection to an opening provided in a housing of a well tool device includes a fluid communication channel, a flapper valve device, a flapper element supporting device, and a securing device. The fluid communication channel provides fluid communication from an outside of the housing to a bore provided on the inside of the housing. The flapper valve device includes a flapper element configured to be in a closed position in which the fluid communication channel is closed and an open position in which the fluid communication channel is open. The flapper element is biased to the closed position. The flapper element supporting device supports the flapper element when the flapper element is in the open position. The securing device secures the flapper valve device and the flapper element supporting device to the opening. The securing device includes a through bore forming a first part of the fluid communication channel.
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公开(公告)号：US11913305B1
公开(公告)日：2024-02-27
申请号：US18169055
申请日：2023-02-14
CPC分类号： E21B34/06 , E21B33/1212 , E21B2200/05
摘要： A seal arrangement includes a body having a face seal, and a flexible arm extending from the body. The arm includes a contact seal. A flapper valve, includes a housing, a flapper and a flapper seat. The flapper seat includes a body having a face seal positioned to make sealing contact with the flapper in selected flapper positions A method for sealing a flapper valve includes closing a flapper toward a seat and making a seal, by deflecting a flexible arm of the flapper seat that supports a contact seal. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a seal arrangement disposed within or as a part of the string.
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公开(公告)号：US11905791B2
公开(公告)日：2024-02-20
申请号：US17405362
申请日：2021-08-18
发明人： Ahmed Al-Mousa
CPC分类号： E21B34/142 , E21B21/103 , E21B34/063 , E21B2200/05
摘要： A well system includes a tubular string comprising a plurality of tubular segments and positioned in a wellbore drilled into a subterranean zone, and a landing sub connected to a bottom end of one of the plurality of tubular segments. The landing sub includes a landing sub central bore and a landing sub locking profile on an inner surface of the landing sub central bore. The well system also includes a valve assembly configured to be pumped down the tubular string by fluid flowing in a downhole direction through the tubular string and to land within the landing sub central bore. The valve assembly includes a main body with a valve central bore and a flapper configured to pivot between an open position and a closed position. In the closed positon the flapper seals against a flapper seat and blocks fluid from flowing in an uphole direction through the valve central bore. The valve assembly also includes a rupture disc positioned in the valve central bore and configured to rupture in response to an application of a predetermined fluid pressure and configured to block fluid from flowing through the valve central bore when in an unruptured state. The valve assembly also includes one or more valve body setting dogs positioned on an outer surface of the main body and configured to lock into the landing sub locking profile and thereby limit axial movement of the main body within the landing sub.
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公开(公告)号：US20230304378A1
公开(公告)日：2023-09-28
申请号：US18020779
申请日：2021-08-18
发明人： Ben Sexton , Markku Keskiniva
IPC分类号： E21B34/08
CPC分类号： E21B34/08 , E21B2200/05
摘要： The present invention relates to a flapper valve for a percussion drill tool. The valve comprises a first side engageable with a planar surface of an element of the percussion drill tool to alternately close first and second fluid flow paths of the percussion drill tool. The planar surface comprises first and second apertures in fluid communication with the first and second fluid flow paths, respectively. The first side of the flapper valve comprises a first planar portion and a second planar portion and a first curved tip portion intermediate the first and second planar portions. The flapper valve is pivotable about the first curved tip portion between a first position, in which the first planar portion of the flapper valve is in sealing contact with the planar surface to close the first aperture, and a second position, in which the second planar portion of the flapper valve is in sealing contact with the planar surface to close the second aperture.
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公开(公告)号：US11761289B2
公开(公告)日：2023-09-19
申请号：US17233215
申请日：2021-04-16
发明人： Viggo Brandsdal
IPC分类号： E21B33/12 , E21B33/128 , E21B34/06
CPC分类号： E21B33/1208 , E21B33/128 , E21B34/063 , E21B2200/05
摘要： A shearable sleeve supports a disintegrable plug element in a pipe string, and may include a first portion including a first circumferential end surface, a seat for supporting the disintegrable plug element, a second portion including a second circumferential end surface, and a surface extending axially between the first and second circumferential end surfaces and formed with one or more radial protrusions adapted to shear off from the rest of the sleeve when being exposed to a predefined axial force, and one or more recesses for receiving one or more loading devices for initiating disintegration of the disintegrable plug element upon contact with the plug, wherein one or more radial protrusions is/are axially offset relative to the first circumferential end surface. A plug device, as well as a plug assembly in a pipe string, may include the shearable sleeve.
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公开(公告)号：US11661826B2
公开(公告)日：2023-05-30
申请号：US17243311
申请日：2021-04-28
CPC分类号： E21B43/12 , E21B34/08 , E21B2200/05
摘要： A flow control system for a well includes a primary safety valve and a secondary safety valve disposable within a valve body of the primary safety valve. The secondary safety valve may include a control line port for receiving control fluid pressure from the same control line as the primary safety valve. A choke in fluid communication with the control line port delays a closing of the secondary safety valve relative to a closing of the primary safety valve in response to a decrease in the control fluid pressure.
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公开(公告)号：US20240309719A1
公开(公告)日：2024-09-19
申请号：US18186024
申请日：2023-03-17
IPC分类号： E21B34/02
CPC分类号： E21B33/04 , E21B34/02 , E21B2200/05
摘要： A wellhead includes a tubing head adapter, a tubing hanger arranged within the tubing adapter, and a dual flapper back pressure valve arranged within the tubing hanger and including an elongate body having opposing upper and lower ends, an inner flowpath defined within the body and extending between the opposing upper and lower ends, and a flapper assembly arranged within the inner flow path and including a flapper pivotably mounted to an inner wall of the inner flow path at a pivoting mechanism. When the flapper is in a closed position, the flapper forms a sealed interface with the inner wall of the inner flow path that prevents fluids from circulating through the tubing hanger and through the inner flowpath from the lower end to the upper end.
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公开(公告)号：US20240301767A1
公开(公告)日：2024-09-12
申请号：US18119214
申请日：2023-03-08
发明人： Merced Gonzalez
IPC分类号： E21B34/08
CPC分类号： E21B34/08 , E21B2200/05
摘要： A subsurface safety valve system may include a tubular valve housing disposable within a wellbore, a primary flow tube moveably secured within the valve housing between an upper position and a lower position, and a secondary valve securable within the valve housing downhole from the primary flow tube and a primary valve. The secondary valve is actuatable between an open position and a closed position. Further, the subsurface safety valve system may include a tubular opening prong securable to the primary flow tube, wherein the opening prong is moveable axially downhole to drive the secondary valve into the open position in response to the primary flow tube moving to the lower position, and wherein the tubular opening prong is movable axially uphole to release the secondary valve to move into the closed position.
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公开(公告)号：US12071832B2
公开(公告)日：2024-08-27
申请号：US17904657
申请日：2021-02-24
发明人： Sylvain Garsault , Hy Phan
CPC分类号： E21B34/066 , E21B47/12 , E21B2200/05
摘要： A well completion including an electric safety valve and a female inductive coupler is provided. A corresponding male inductive coupler is aligned with the female inductive coupler to provide for the transfer of power and/or telemetry during deployment. The male inductive coupler can be removed for normal operation. In the event of safety valve failure during operation, a service male inductive coupler and contingency safety valve can be deployed such that the service male inductive coupler is aligned with the female inductive coupler.
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公开(公告)号：US20240254853A1
公开(公告)日：2024-08-01
申请号：US18161295
申请日：2023-01-30
发明人： Danilo IGLESIAS , Virgilio M. PORTO
IPC分类号： E21B33/068 , E21B34/02 , E21B43/12
CPC分类号： E21B33/068 , E21B34/02 , E21B43/122 , E21B2200/05
摘要： A method of injecting gas into a well can include flowing the gas through a gas flow passage extending through a housing connected to a wellhead installation, the gas thereby flowing through the wellhead installation and into an annulus in the well, and maintaining fluid pressure applied to a piston of a gas injection valve while the gas flows into the annulus. A gas injection system can include a housing having a gas flow passage extending longitudinally through the housing, and being configured to connect to a wellhead installation, and a gas injection valve including a pivotably mounted flapper closure member. The flapper closure member in an open position permits gas flow between the gas flow passage and the wellhead installation, and the flapper closure member in a closed position prevents the gas flow from the wellhead installation through the gas flow passage.
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