发明名称 THRU-CASING MILLING
摘要 A section milling device may include a plurality of rotatable arms that each include one or more cutting members. The rotatable arms may be rotated between a retracted position and an extended position. When rotated to the extended position, the rotatable arms may be locked or substantially limited in their movement by one or more hydraulic pistons. The rotatable arms may be held at a predetermined angle during milling operations.
申请公布号 US2016010413(A1) 申请公布日期 2016.01.14
申请号 US201514789001 申请日期 2015.07.01
申请人 Smith International, Inc. 发明人 Stokes David A.;O'Rourke Timothy M.;Fuller Nathan E.
分类号 E21B29/00;E21B17/10 主分类号 E21B29/00
代理机构 代理人
主权项 1. A device, comprising: a tubular body; a plurality of openings extending radially through the tubular; a plurality of rotatable arms each having a cutting member defined by a front face and a back face, each rotatable arm configured to rotated between a retracted position and an extended position; and a cutting surface on the front face of the cutting member, the cutting surface including a at least one cutting insert coupled thereto.
地址 Houston TX US