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Dipscan Tomography
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 71st EAGE Conference and Exhibition - Workshops and Fieldtrips, Jun 2009, cp-129-00091
- ISBN: 978-94-6282-103-3
Abstract
We describe a method of tomography that uses dip measurements taken from locally coherent events in surface data in time. The dip measurement needed for tomography is the offset dip, which is measured along the source-receiver azimuth. Following migration of an event, the error in offset dip can be computed, and this input to a tomography program to calculate the slowness field error. Adding this to the input subsurface model results in an updated model. Three iterations of dipscan tomography is needed at the present to generate a reasonably converged model.