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公开(公告)号：US11215028B2
公开(公告)日：2022-01-04
申请号：US16889928
申请日：2020-06-02
申请人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
发明人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis. A backpressure valve is arranged in the flowbore. The backpressure valve includes a flapper valve including a first side and an opposing second side pivotally mounted to the inner surface to selectively extend across the flowbore and a locking system including a spring clip mounted to the inner surface. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface, and a second position, wherein the flapper valve is pivoted away from the flowbore and locked open by the spring clip such that the first side forms part of the flowbore.
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公开(公告)号：US20210372226A1
公开(公告)日：2021-12-02
申请号：US16889900
申请日：2020-06-02
申请人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
发明人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
IPC分类号： E21B34/08
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis and a backpressure valve arranged in the flowbore. The backpressure valve includes a flapper valve including a hinge end, a cantilevered end, a first side and an opposing second side pivotally mounted to the inner surface at the hinge end to selectively extend across the flowbore, and a locking system mounted to the inner surface adjacent to the hinge end of the flapper valve in the flowbore. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface between an open configuration and a closed configuration, and a second position, wherein the hinge end of the flapper valve activates the locking system to lock the flapper valve in the open configuration.
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公开(公告)号：US11365605B2
公开(公告)日：2022-06-21
申请号：US16889889
申请日：2020-06-02
申请人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
发明人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis, and a backpressure valve arranged in the flowbore. The backpressure valve includes a flapper valve having a first side and an opposing second side pivotally mounted to the inner surface to selectively extend across the flowbore and a locking system mounted to the inner surface in the flowbore and snap-fittingly engageable with the flapper valve. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface, and a second position, wherein the flapper valve is pivoted away from the flowbore and locked open by the locking system such that the first side forms part of the flowbore.
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公开(公告)号：US11359460B2
公开(公告)日：2022-06-14
申请号：US16889879
申请日：2020-06-02
申请人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
发明人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis, and a backpressure valve arranged in the flowbore. The backpressure valve includes a flapper valve including a first side and an opposing second side pivotally mounted to the inner surface to selectively extend across the flowbore, and a locking system mounted to the inner surface in the flowbore and selectively engageable with the flapper valve. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface, and a second position, wherein the flapper valve is pivoted away from the flowbore and locked open by the locking system such that the first side forms part of the flowbore.
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公开(公告)号：US11215026B2
公开(公告)日：2022-01-04
申请号：US16889900
申请日：2020-06-02
申请人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
发明人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis and a backpressure valve arranged in the flowbore. The backpressure valve includes a flapper valve including a hinge end, a cantilevered end, a first side and an opposing second side pivotally mounted to the inner surface at the hinge end to selectively extend across the flowbore, and a locking system mounted to the inner surface adjacent to the hinge end of the flapper valve in the flowbore. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface between an open configuration and a closed configuration, and a second position, wherein the hinge end of the flapper valve activates the locking system to lock the flapper valve in the open configuration.
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公开(公告)号：US20210372233A1
公开(公告)日：2021-12-02
申请号：US16889879
申请日：2020-06-02
申请人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
发明人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis, and a backpressure valve arranged in the flowbore. The backpressure valve includes a flapper valve including a first side and an opposing second side pivotally mounted to the inner surface to selectively extend across the flowbore, and a locking system mounted to the inner surface in the flowbore and selectively engageable with the flapper valve. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface, and a second position, wherein the flapper valve is pivoted away from the flowbore and locked open by the locking system such that the first side forms part of the flowbore.
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公开(公告)号：US20210372228A1
公开(公告)日：2021-12-02
申请号：US16889928
申请日：2020-06-02
申请人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
发明人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis. A backpressure valve is arranged in the flowbore. The backpressure valve includes a flapper valve including a first side and an opposing second side pivotally mounted to the inner surface to selectively extend across the flowbore and a locking system including a spring clip mounted to the inner surface. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface, and a second position, wherein the flapper valve is pivoted away from the flowbore and locked open by the spring clip such that the first side forms part of the flowbore.
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公开(公告)号：US20210372225A1
公开(公告)日：2021-12-02
申请号：US16889889
申请日：2020-06-02
申请人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
发明人： Larry Thomas Palmer , Erik Van Steveninck , Erik Vilhelm Nordenstam , Eric Anders Erickson , Scott Bigrigg
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis, and a backpressure valve arranged in the flowbore. The backpressure valve includes a flapper valve having a first side and an opposing second side pivotally mounted to the inner surface to selectively extend across the flowbore and a locking system mounted to the inner surface in the flowbore and snap-fittingly engageable with the flapper valve. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface, and a second position, wherein the flapper valve is pivoted away from the flowbore and locked open by the locking system such that the first side forms part of the flowbore.
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公开(公告)号：US11215031B2
公开(公告)日：2022-01-04
申请号：US16889872
申请日：2020-06-02
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis, and a backpressure valve cartridge arranged in the flowbore. The backpressure valve cartridge includes a passage, a valve seat arranged in the passage, a flapper valve pivotally mounted relative to the valve seat in the passage, and a piston member configured to shift the flapper valve between a first position, wherein the flapper valve is free to pivot relative to the valve seat, and a second position, wherein the flapper valve is pivoted away from the valve seat and maintained in an open configuration.
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公开(公告)号：US20210372231A1
公开(公告)日：2021-12-02
申请号：US16889872
申请日：2020-06-02
摘要： A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis, and a backpressure valve cartridge arranged in the flowbore. The backpressure valve cartridge includes a passage, a valve seat arranged in the passage, a flapper valve pivotally mounted relative to the valve seat in the passage, and a piston member configured to shift the flapper valve between a first position, wherein the flapper valve is free to pivot relative to the valve seat, and a second position, wherein the flapper valve is pivoted away from the valve seat and maintained in an open configuration.
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