<p>Measurements made using at least one two-component magnetometers on a rotating bottomhole assembly are processed to correct for disturbance of the magnetic field due to the rotating drillstring and get an estimate of instantaneous toolface angle.</p>
申请公布号
WO2006047523(A1)
申请公布日期
2006.05.04
申请号
WO2005US38387
申请日期
2005.10.24
申请人
BAKER HUGHES INCORPORATED;BLANZ, MARTIN;BROOKS, ANDREW, G.
