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公开(公告)号：US20180252072A1
公开(公告)日：2018-09-06
申请号：US15449031
申请日：2017-03-03
申请人： Yuh Loh , Fahmi Bahrini , Gerald Whitley, JR.
发明人： Yuh Loh , Fahmi Bahrini , Gerald Whitley, JR.
摘要： A pressure control valve for downhole treatment operations includes a valve body including an inlet, an outlet, and a valve seat. A valve assembly is arranged in the valve body. The valve assembly includes a valve member selectively positionable on the valve seat to control fluid flow through the valve body. A piston assembly including a piston and a control fluid inlet is arranged in the valve body. The piston is operatively connected to the valve assembly. The piston is operable to bias the valve member toward a closed configuration upon exposure to a control fluid.
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公开(公告)号：US10760376B2
公开(公告)日：2020-09-01
申请号：US15449031
申请日：2017-03-03
申请人： Yuh Loh , Fahmi Bahrini , Gerald Whitley, Jr.
发明人： Yuh Loh , Fahmi Bahrini , Gerald Whitley, Jr.
摘要： A pressure control valve for downhole treatment operations includes a valve body including an inlet, an outlet, and a valve seat. A valve assembly is arranged in the valve body. The valve assembly includes a valve member selectively positionable on the valve seat to control fluid flow through the valve body. A piston assembly including a piston and a control fluid inlet is arranged in the valve body. The piston is operatively connected to the valve assembly. The piston is operable to bias the valve member toward a closed configuration upon exposure to a control fluid.
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