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Generalized directional measurements and using symmetrized and anti-symmetrized angles to indicate orientation of anisotropy and formation boundaries
Generalized directional measurements and using symmetrized and anti-symmetrized angles to indicate orientation of anisotropy and formation boundaries
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机译:广义方向测量,并使用对称和反对称角度指示各向异性和地层边界的方向
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摘要
A method for determining orientation of an electrical resistivity boundary in a wellbore includes using measurements of an electromagnetic property of formations traversed by the wellbore at at least one axial spacing between a multiaxial electromagnetic transmitter and a multiaxial electromagnetic receiver, and determining a symmetrized angle using measurements of the electromagnetic property made using receiver components transverse to a well logging instrument axis and a transmitter component along the axis. At least a relative orientation of the electrical boundary with respect to an orientation of the well logging instrument is determined using the symmetrized angle.
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