发明名称 Downhole clamping mechanism
摘要 An anchoring system for use with a downhole tool includes a body with anchor members mounted on the body that pivot radially outward from the body and into engagement with an inner surface of a tubular. Curved slots are provided along a portion of the members and a sliding block has a protrusion that projects into the slots. The slots are curved so that when the block is urged axially within the body, the interaction between the slots and protrusions pivots the members radially outward. A piston is urged through the body to drive the block. Optionally, an elongate helical gear may cooperate with grooves formed in an edge of the members so that rotating the gear pivots the members radially outward.
申请公布号 US9010446(B2) 申请公布日期 2015.04.21
申请号 US201213400780 申请日期 2012.02.21
申请人 Baker Hughes Incorporated 发明人 Fuhst Karsten;Peter Andreas;Moeller Matthias;Weiner Christian;Michael Ulrich;Befeld William
分类号 E21B23/00;E21B23/01;E21B23/04 主分类号 E21B23/00
代理机构 Bracewell & Giuliani LLP 代理人 Bracewell & Giuliani LLP
主权项 1. An apparatus for use downhole comprising: a downhole tool; and an anchoring system comprising, a body having an axis, anchoring members each having a base portion pivotingly coupled with the body along a line substantially parallel with the axis of the body, and an anchoring portion spaced apart from the base portion that is moveable from a running position proximate the body to a deployed position spaced radially outward from the body, an actuator engaged with the base portions, and that comprises blocks that project radially outward from the body and into slots formed along curved paths in the base portions, so that when the blocks move axially within the body, interference between side walls of the slots and the blocks exerts a pivoting force onto the anchoring members that pivots the anchoring members into the deployed position, anda connector selectively coupled with the downhole tool.
地址 Houston TX US