发明名称 Methods and systems for controlling torque transfer from rotating equipment
摘要 Systems and methods for reducing the amount of torque transferred to the Bottom Hole Assembly and the drill string during drilling operations are disclosed. The drill string includes an optionally non-rotatable portion. A rotational hold down system is positioned at a first position on the drill string where it is not rotationally coupled to the drill string. The rotational hold down system is then moved to a second position on the drill string where it is rotationally coupled to the optionally non-rotatable portion of the drill string. In the second position, one or more bars on the rotational hold down system substantially prevent rotation of the optionally non-rotatable portion of the drill string.
申请公布号 US8807243(B2) 申请公布日期 2014.08.19
申请号 US201313790270 申请日期 2013.03.08
申请人 Halliburton Energy Services, Inc. 发明人 Surjaatmadja Jim B.;East Loyd
分类号 E21B7/00 主分类号 E21B7/00
代理机构 Baker Botts L.L.P. 代理人 Bryson Alan;Baker Botts L.L.P.
主权项 1. A system for drilling a wellbore in a formation comprising: a drill string; wherein the drill string comprises a bottomhole assembly;wherein the bottomhole assembly comprises an optionally non-rotatable portion and a drill bit;wherein the drill bit penetrates the wellbore into the formation; a first set of projections attached to or integrally formed with a casing within the wellbore; wherein the first set of projections is operable to control rotation of the optionally non-rotatable portion.
地址 Houston TX US