Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Reexamination Certificate
2011-08-23
2011-08-23
Keith, Jack (Department: 3663)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
C367S032000, C702S011000
Reexamination Certificate
active
08004932
ABSTRACT:
Cross-dipole measurements are obtained in a borehole. By estimating a direction of polarization of the fast shear mode at low and high frequencies and comparing the estimated distances, a cause of anisotropy is established. Formation stresses and directions may be estimated.
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Dubinsky Vladimir
Moos Daniel
Patterson Douglas J.
Tang Xiao Ming
Zheng Yibing
Baker Hughes Incorporated
Keith Jack
Mossman Kumar & Tyler PC
Murphy Daniel L
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