Apparent Anisotropy
Apparent Anisotropy :
(n.) Geophysics. In seismic data, the ratio of the velocity determined from normal moveout (i.e., primarily a horizontal measurement) to velocity measured vertically in a vertical seismic profile or similar survey. Apparent anisotropy is of particular importance when migrating long-offset seismic data and analyzing AVO data accurately. The normal moveout velocity involves the horizontal component of the velocity field, which affects sources and receivers that are offset, but the horizontal velocity field is not involved in velocity calculations from vertically measured time-depth pairs. See: amplitude variation with offset. More Details: The Promise of Elastic Anisotropy; Oilfield Anisotropy: Its Origins and Electrical Characteristics
No records Found