发明名称 THREE DIMENSIONAL STEERABLE SYSTEM
摘要 <p>A steering assembly (20) includes upper (26) and lower (28) tubular housings connected by a universal joint (30). An angle cam (80) is disposed on the end of the lower housing and projects into the housing. A plurality of wedge members (90) extend axially from the upper housing and into engagement with the angle cam. Drive trains (150) are connected to the wedge members to move the wedge members toward and away from the angle cam to change the angle and azimuth of the lower housing with respect to the upper housing by the universal joint. The lower housing is connected to a bearing pack (16) supporting a drill bit (12) so as to change the direction of the drill bit. The steering assembly is connected to composite tubing (520) having conductors (584, 586) in the wall and a processor (514) is at the surface. Data on the position of the bit is transmitted to the processor to change the bend angle and direction of the drilling of the bit.</p>
申请公布号 WO0146549(A1) 申请公布日期 2001.06.28
申请号 WO2000US33929 申请日期 2000.12.14
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 EPPINK, JAY, M.;ODELL, ALBERT, C., II;ESTEP, JAMES, W.;TERRY, JAMES, B.;WILSON, THOMAS, P.;TRAINOR, WILLIAM, F.
分类号 E21B7/04;E21B4/00;E21B4/04;E21B4/18;E21B7/06;E21B7/08;E21B7/10;E21B17/02;E21B17/03;E21B17/20;E21B19/07;E21B19/086;E21B19/16;E21B23/00;E21B29/06;E21B44/00;E21B47/01;E21B49/08;G01V3/30;(IPC1-7):E21B7/04 主分类号 E21B7/04
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