Method and system for estimating formation slowness
AssigneeSchlumberger Technology Corporation
InventorsMitsuko Kitazawa, Henri-Pierre Valero, Takeshi Endo, John Adam Donald, Erik Wielemaker
Life of this patent
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AssigneeSchlumberger Technology Corporation
InventorsMitsuko Kitazawa, Henri-Pierre Valero, Takeshi Endo, John Adam Donald, Erik Wielemaker
Estimating the term…
A method for estimating formation slowness is provided. The method comprises forward modeling to compute formation slownesses based on a first method for orthorhombic media using stress magnitudes and third-order elastic constants as inputs, and forward modeling to determine formation slownesses analytically based on a second method using stress magnitudes, stress azimuth and third-order elastic constants as inputs. The first method may be based on Tsvankin method and the second method may be based on Christoffel method. The forward modeling may further use well configuration and reference moduli as inputs, and the results from the forward modeling may include formation slownesses, and at least one of vertical slownesses, anisotropic parameters, anellipticity indicators and fast shear azimuth. The method may further comprise assessing quality of the forward modeling based on results output from the forward modeling.
A method for improving seismic imaging, the method comprising:
A system for improving seismic imaging, the system comprising:
Dependencies are inferred from the claim text.