Estimating formation properties includes a member coupled to a carrier, the member having a distal end that engages a borehole wall location, the distal end having a curved surface having a radius of curvature in at least one dimension about equal to or greater than a borehole radius. A drive device extends the first extendable member with a force sufficient to determine formation strength, and at least one measurement device providing an output signal indicative of the formation property. Articulating couplings may be used to change an angle of extension of the extendable member.
申请公布号
WO2009085518(A2)
申请公布日期
2009.07.09
申请号
WO2008US84891
申请日期
2008.11.26
申请人
BAKER HUGHES INCORPORATED;TCHAKAROV, BORISLAV, J.;AZEEMUDDIN, MOHAMMED;ONG, SEE, HONG
发明人
TCHAKAROV, BORISLAV, J.;AZEEMUDDIN, MOHAMMED;ONG, SEE, HONG