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Proceedings Paper

Practical algorithms for crosswell seismic imaging
Author(s): Jerry M. Harris
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Paper Abstract

The goal of high resolution Crosswell Seismic Profiling is to image weak and small scale heterogeneities imbedded in a background of strong, large scale variations. This model is appropriate for many geological environments and reservoir delineation and monitoring applications. One `practical' approach is to separate the imaging problem into transmission traveltime tomography and reflection segments. The travel times are used first to image the large scale velocity variations that refract the waves. The full wavefield is then pre-processed to enhance primary reflections and mapped or migrated. This segmented approach is verified with tests on field data recorded in a carbonate oil reservoir. Traveltime tomography is found to resolve velocity features of the order of 1 - 2 wavelengths. Structural features as small as 1/2 wavelength are imaged with reflection methods.

Paper Details

Date Published: 1 December 1993
PDF: 8 pages
Proc. SPIE 2033, Mathematical Methods in Geophysical Imaging, (1 December 1993); doi: 10.1117/12.164842
Show Author Affiliations
Jerry M. Harris, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 2033:
Mathematical Methods in Geophysical Imaging
Sergio E. Zarantonello, Editor(s)

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