发明名称 SLIP SYSTEM FOR RETRIEVABLE PACKER
摘要 The present invention provides a slip system for fractionally engaging a temporarily set body, such as a packer or a whipstock, within a wellbore. Th e slip system comprises (1) a plurality of slips: (2) a tubular slip ring for holdi ng the individual slips at an end; and (3) a tubular cone body having beveled surfaces for receiving the individual slips when the slip system is actuated. Each slip h as a first end that defines a tail, and a second opposite end that defines a slip body. The tail and the slip body are integral, meaning that the intermediate shank portion of prior art slips is essentially removed. In its place, a dovetail geometry is provided within the tail, creating an increased tail width at the end of the rail opposite t he slip body. The slip ring has a plurality of pockets, with each pocket being dimensioned to receive the dovetailed configuration of the tail on the respective slips.</S DOAB>
申请公布号 CA2469971(A1) 申请公布日期 2004.12.06
申请号 CA20042469971 申请日期 2004.06.04
申请人 WEATHERFORD/LAMB, INC. 发明人 WARD, DAVID G.;RITTER, MICHAEL G.;ZIMMERMAN, PATRICK J.
分类号 E21B33/1295;(IPC1-7):E21B33/129;E21B19/10 主分类号 E21B33/1295
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