发明名称 DIRECT PROPORTIONAL SURFACE CONTROL SYSTEM FOR DOWNHOLE CHOKE
摘要 A direct proportional control system for remotely controlling actuation of a tool. A well control system includes an actuator for a downhole well tool, the actuator including an actuator member which displaces to operate the well tool. A control system member is positioned at a remote location. A displacement of the control system member is proportional to a displacement of the actuator member.
申请公布号 EP1871977(A4) 申请公布日期 2014.10.01
申请号 EP20050735318 申请日期 2005.04.20
申请人 WELLDYNAMICS, INC. 发明人 TIPS, TIMOTHY, R.
分类号 E21B34/06;E21B34/08;E21B34/10 主分类号 E21B34/06
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