专利名称：Hydraulic control system for actuating
downhole tools
发明人：Adam Davis Wright,Vincent Paul Zeller申请号：US12960895申请日：20101206公开号：US08397824B2公开日：20130319
专利附图：
摘要：A hydraulic control system () for actuating a downhole tool. The hydrauliccontrol system () includes a plurality of valve members () operable to selectively allowand prevent fluid communication between high and low pressure sources () and first and
second sides () of an actuator () operably associated with the downhole tool. In thehydraulic control system (), a first valve member () is ported between the high pressuresource () and the first side () of the actuator (), a second valve member () is portedbetween the low pressure source () and the first side () of the actuator (), a third valvemember () is ported between the high pressure source () and the second side () of theactuator () and a fourth valve member () is ported between the low pressure source ()and the second side of the actuator ().
申请人：Adam Davis Wright,Vincent Paul Zeller
地址：McKinney TX US,Flower Mound TX US
国籍：US,US
代理人：Lawrence R. Youst
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