High resolution crosswell imaging of west Texas carbonate reservoir: reverse time migration with upgoing and downgoing wave separation in the frequency domain

Crosswell reverse time migration with upgoing and downgoing wave separation can greatly reduce artifacts usually seen in the conventional reverse time migration image without wave separation. However, the upgoing and downgoing wave separation is inefficient in the space-time domain algorithms because the upper/lower half space images are indistinguishable from one another. To remedy this problem, we propose a frequency-domain algorithm with upgoing and downgoing wave decomposition for the crosswell reverse time migration. The numerical experiments and west Texas field data example demonstrate that the proposed method can efficiently attenuate migration artifacts. The reverse time migration image with upgoing and downgoing wave separation for crosswell data.