发明名称 Flow valve installation and removal apparatus
摘要 An apparatus for installing and removing flow valve in a well tubing having a plurality of valve receiving side pockets offset from the main bore of the tubing by providing an orientation sleeve with a first slot for directing a guide key of a valve handling apparatus in the sleeve and a second slot intersecting the first slot to assist in removal of debris from the first slot with spaced aligned shoulders in the sleeve at the intersection of the first and second slots for actuation of the valve handling apparatus. The valve handling apparatus includes a support body including an elongated cylindrical body member supporting a movable body comprising an elongated plunger telescopically and nonrotatably arranged in the support body. A guide key is pivotally connected to the support body with spring means yieldably urging it outwardly relative thereto so that the guide key can readily pass downwardly through any number of orientation sleeves but can engage with the first slot of the orientation sleeve immediately thereabove upon an upward movement of the valve handling apparatus in the well string to selectively install and remove a valve in or from any desired mandrel side pocket in the tubing string.
申请公布号 US4031954(A) 申请公布日期 1977.06.28
申请号 US19760722534 申请日期 1976.09.13
申请人 PRODUCTION SPECIALTIES, INC. 发明人 HERBERT, GERALD P.;MCGINN, FERDINAND M.;EMBREE, HUGH D.
分类号 E21B23/03;(IPC1-7):E21B23/00 主分类号 E21B23/03
代理机构 代理人
主权项
地址