发明名称 OSCILLATING MUD MOTOR
摘要 An oscillating mud motor having a valve section and a piston section positioned within a hollow cylindrical housing wherein the valve section comprises a timing cycle valve and a spool valve which hydraulically controls rotational movement of a piston on a central shaft in the piston section for linear reciprocation within the housing.
申请公布号 US2016168912(A1) 申请公布日期 2016.06.16
申请号 US201514965814 申请日期 2015.12.10
申请人 WWT NORTH AMERICA HOLDINGS, INC. 发明人 Mitchell Sarah;Mock Philip Wayne
分类号 E21B4/02;E21B10/26 主分类号 E21B4/02
代理机构 代理人
主权项 1. An oscillating mud motor comprising: a valve section; and a piston section; wherein the valve section and the piston section are cylindrical and have a hollow interior, and wherein the valve section hydraulically controls rotational movement of the piston for linear reciprocation.
地址 Houston TX US