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公开(公告)号：US06412510B1
公开(公告)日：2002-07-02
申请号：US09650247
申请日：2000-08-29
IPC分类号： F16K1710
CPC分类号： F15B11/20 , E21B34/16 , Y10T137/0396 , Y10T137/7725 , Y10T137/777
摘要： A wellhead safety valve control system for opening and closing subsurface and surface safety valves in a predetermined sequence and certain components used with such control system. Dump valves in both latching and non-latching configurations are utilized within the control system. Embodiments of the dump valve may incorporate a time delay feature to ensure the subsurface safety valve is closed after a desired time period following the closure of the surface safety valve in the event of flowline anomalies. Provision is made for independent closure of the surface safety valve without closure of the subsurface safety valve.
摘要翻译： 一种用于以预定顺序打开和关闭地下和表面安全阀的井口安全阀控制系统以及与这种控制系统一起使用的某些部件。 在锁定和非锁定配置中的排放阀都在控制系统内使用。 倾倒阀的实施例可以包括时间延迟特征，以确保在流线异常情况下在表面安全阀关闭之后的期望时间段之后关闭地下安全阀。 规定独立关闭表面安全阀而不关闭地下安全阀。
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公开(公告)号：US6053711A
公开(公告)日：2000-04-25
申请号：US991240
申请日：1997-12-16
摘要： Pump to supply fluid to at least two circuits in a control system for a production well. Each of the circuits is maintained at different pressures. The pump provides fluid to a plurality of poppets that are opened or closed depending on the positions of a cam surface which controls the position of the poppet. A pressure relief valve is used to prohibit fluid from entering a circuit unless the pressure exceeds the pressure of the fluid in the control circuit. The cam surfaces are controlled by a knob rotatable by an operator. By rotating the knob, the poppets can be opened or closed so as to provide fluid sequentially to each of the circuits and pressurize each circuit individually.
摘要翻译： 泵用于将液体供应到用于生产井的控制系统中的至少两个回路。 每个电路都保持不同的压力。 泵根据控制提升阀位置的凸轮表面的位置向流体提供打开或关闭的多个弹簧。 除非压力超过控制电路中的流体的压力，否则压力释放阀用于禁止流体进入回路。 凸轮表面由可由操作者旋转的旋钮控制。 通过旋转旋钮，可以打开或关闭泡沫，以便顺序地向每个电路提供流体并且分别对每个电路加压。
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公开(公告)号：US06116268A
公开(公告)日：2000-09-12
申请号：US193570
申请日：1998-11-17
CPC分类号： F15B11/20 , E21B34/16 , Y10T137/0396 , Y10T137/7725 , Y10T137/777
摘要： A wellhead safety valve control system for opening and closing subsurface and surface safety valves in a predetermined sequence and certain components used with such control system. Dump valves in both latching and non-latching configurations are utilised within the control system. Embodiments of the dump valve may incorporate a time delay feature to ensure the subsurface safety valve is closed after a desired time period following the closure of the surface safety valve in the event of flowline anomalies. Provision is made for independent closure of the surface safety valve without closure of the subsurface safety valve.
摘要翻译： 一种用于以预定顺序打开和关闭地下和表面安全阀的井口安全阀控制系统以及与这种控制系统一起使用的某些部件。 在锁定和非锁定配置中的排放阀都在控制系统内使用。 倾倒阀的实施例可以包括时间延迟特征，以确保在流线异常情况下在表面安全阀关闭之后的期望时间段之后关闭地下安全阀。 规定独立关闭表面安全阀而不关闭地下安全阀。
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公开(公告)号：US06015134A
公开(公告)日：2000-01-18
申请号：US82579
申请日：1993-06-28
IPC分类号： F16K31/126 , F16K37/00 , F16K31/122
CPC分类号： F16K37/0008 , F16K31/1262 , Y10T137/8275 , Y10T403/7079
摘要： An actuator used to close and open a shut-in valve of a flowline. An indicator rod is threadedly connected to a connector which, in turn, is threadedly connected to the valve stem of the shut-in valve. A compression spring extends between a diaphragm plate and the bottom of the actuator. The shut-in valve is opened by pneumatic pressure above the diaphragm and the compression spring closes the shut-in valve by moving the valve stem when the pneumatic pressure above the diaphragm is exhausted to the atmosphere. The actuator including the compression spring may be disconnected from the bonnet on which the actuator is attached by rotating the indicator rod and removing the attachment bolts between the actuator and the attachment flange. The connector will be left on the valve stem.
摘要翻译： 用于关闭和打开流线的闭阀的执行器。 指示杆螺纹连接到连接器，连接器又连接到关闭阀的阀杆。 压缩弹簧在隔膜板和致动器的底部之间延伸。 关闭阀通过隔膜上方的气动压力打开，当隔膜上方的气动压力耗尽大气时，压缩弹簧通过移动阀杆来关闭关闭阀。 包括压缩弹簧的致动器可以通过旋转指示杆并且去除致动器和附接凸缘之间的附接螺栓而与附接有致动器的发动机盖分离。 连接器将留在阀杆上。
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公开(公告)号：US5971353A
公开(公告)日：1999-10-26
申请号：US988849
申请日：1997-12-11
IPC分类号： E21B34/06 , E21B34/10 , F16K31/122
CPC分类号： F16K31/1221 , E21B34/06 , E21B34/108 , Y10T137/8663
摘要： Dump/stop valve to regulate the time delay between the closure of a surface controlled subsurface safety valve and a surface controlled surface valve. Fluid is applied to a first cavity above a pilot plunger which maintains the subsurface safety valve in an open configuration. In the event the surface safety valve is intended to be closed, the fluid within the first cavity is bled off by a control circuit which immediately closes the surface safety valve. The pilot plunger responds by allowing the subsurface safety valve to be closed a predetermined and consistent time period thereafter.
摘要翻译： 倾卸/停止阀，以调节表面控制的地下安全阀和表面控制表面阀的关闭之间的时间延迟。 流体被施加到先导柱塞上方的第一腔，其将地下安全阀保持在打开构型。 在表面安全阀旨在关闭的情况下，通过立即关闭表面安全阀的控制回路将第一腔内的流体排出。 先导柱塞通过允许地下安全阀在其后闭合预定和一致的时间段来进行响应。
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