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公开(公告)号：US09896907B2
公开(公告)日：2018-02-20
申请号：US14922851
申请日：2015-10-26
发明人： Samuel C. Kucera
CPC分类号： E21B34/101
摘要： An equalizer valve is configured to stay shut when pressure on one side or the other goes up. A dynamic seal and a metal to metal seal are located within the housing. Pressure from above is directed uphole of the metal to metal seal and downhole of the larger dynamic seal for a net closing force. Pressure from downhole is directed between the metal to metal and dynamic seals for a net force uphole to keep the metal seal closed. Normal operation is from a control line moving a rod piston to move a valve member to open the metal to metal seal for flow through the valve body.
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公开(公告)号：US09719326B2
公开(公告)日：2017-08-01
申请号：US14078152
申请日：2013-11-12
IPC分类号： E21B34/10
CPC分类号： E21B34/10
摘要： Two control systems are provided to run in parallel between a surface location and the final controlled element, in this case a subsurface safety valve. The primary control circuit is controlling until a predetermined signal is given to the secondary control line which has the effect of actuating the valve a single time against the force of a bias or a shear pin that breaks. The movement of a shuttle in the housing due to the predetermined signal being provided in the secondary line puts the secondary control system in the position of running the tool. The primary system is valved off and cannot return into service. There are just two lines into and out of the housing to make the valve operate at the desired location. A test port is provided for surface testing.
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公开(公告)号：US20170114610A1
公开(公告)日：2017-04-27
申请号：US14922851
申请日：2015-10-26
发明人： Samuel C. Kucera
CPC分类号： E21B34/101
摘要： An equalizer valve is configured to stay shut when pressure on one side or the other goes up. A dynamic seal and a metal to metal seal are located within the housing. Pressure from above is directed uphole of the metal to metal seal and downhole of the larger dynamic seal for a net closing force. Pressure from downhole is directed between the metal to metal and dynamic seals for a net force uphole to keep the metal seal closed. Normal operation is from a control line moving a rod piston to move a valve member to open the metal to metal seal for flow through the valve body.
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公开(公告)号：US20150129196A1
公开(公告)日：2015-05-14
申请号：US14078152
申请日：2013-11-12
CPC分类号： E21B34/10
摘要： Two control systems are provided to run in parallel between a surface location and the final controlled element, in this case a subsurface safety valve. The primary control circuit is controlling until a predetermined signal is given to the secondary control line which has the effect of actuating the valve a single time against the force of a bias or a shear pin that breaks. The movement of a shuttle in the housing due to the predetermined signal being provided in the secondary line puts the secondary control system in the position of running the tool. The primary system is valved off and cannot return into service. There are just two lines into and out of the housing to make the valve operate at the desired location. A test port is provided for surface testing.
摘要翻译： 提供两个控制系统以在表面位置和最终受控元件之间平行运行，在这种情况下是地下安全阀。 主控制电路正在控制，直到给予二次控制线的预定信号，其具有克服偏压或剪切销的力的单次致动阀的效果。 由于在二次线路中设置的预定信号，梭子在壳体中的移动使二次控制系统处于运行工具的位置。 主要系统被锁定，无法恢复使用。 只有两条线进出外壳，使阀门在所需的位置运行。 提供测试端口用于表面测试。
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公开(公告)号：US10077631B2
公开(公告)日：2018-09-18
申请号：US14853356
申请日：2015-09-14
IPC分类号： E21B34/10
CPC分类号： E21B34/101
摘要： An equalizer valve is hydraulically operated by a pair of control lines running from a remote location such as a well surface. The use of control lines to make a mandrel or piston move in opposed directions removes the need for a spring or compressed gas to act as a spring against the anticipated hydrostatic force in a single control line system that is dependent on setting depth. The equalizer valve with its pair of control lines is insensitive to setting depth. Three seals on the mandrel are used to move the mandrel with the two control lines in opposed directions and to apply a net force to the mandrel. The seal applying the net closure force is exposed to a low or atmospheric chamber to make the second seal operate reliably using a large differential.
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6.发明申请Pressure Equalizing Valve Insensitive to Setting Depth and Tubing Pressure Differentials 审中-公开压力均衡阀对设定深度和管道压差不敏感公开(公告)号：US20170074068A1
公开(公告)日：2017-03-16
申请号：US14853356
申请日：2015-09-14
IPC分类号： E21B34/10
CPC分类号： E21B34/101
摘要： An equalizer valve is hydraulically operated by a pair of control lines running from a remote location such as a well surface. The use of control lines to make a mandrel or piston move in opposed directions removes the need for a spring or compressed gas to act as a spring against the anticipated hydrostatic force in a single control line system that is dependent on setting depth. The equalizer valve with its pair of control lines is insensitive to setting depth. Three seals on the mandrel are used to move the mandrel with the two control lines in opposed directions and to apply a net force to the mandrel. The seal applying the net closure force is exposed to a low or atmospheric chamber to make the second seal operate reliably using a large differential.
摘要翻译： 均衡阀由一对从远程位置（例如井表面）运行的控制线液压操作。 使用控制线使心轴或活塞沿相反的方向移动，消除了弹簧或压缩气体在依赖于设定深度的单个控制线系统中作为弹簧抵抗预期的静水力的需要。 具有一对控制线的均衡阀对设定深度不敏感。 心轴上的三个密封件用于使两个控制线在相反的方向上移动心轴，并向心轴施加净力。 施加净关闭力的密封件暴露于低或大气室，以使第二密封件使用大的差速器可靠地工作。
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