Method for migrating seismic data by using ray tracing in determ

Details Method for migrating seismic data by using ray tracing in determ Method for migrating seismic data by using ray tracing in determ

1989-06-28

1993-07-20

Envall, Jr., Roy N.

Boots, shoes, and leggings

367 71, G01V 100

Patent

active

052299384

ABSTRACT:
A method for obtaining two way travel times for source and receiver pairs includes the steps of determining a set of one way travel times for each source to a plurality of image points and a set of one way travel times for each receiver to the plurality of image points. Ray sets are generated for both the sources and receivers. Travel times from a surface position to image points are computed by two point interpolation using the ray sets. Two way travel time is computed by summing two sets, one set each for the source and receiver positions. A two way travel time set is obtained for a particular source and receiver combination for all imaging points.

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