High-Resolution Interwell Seismic Experiments in Sedimentary Formations

by Jorge O. Parra, Southwest Research Inst, San Antonio, United States,
Brian J. Zook, Southwest Research Inst, San Antonio, United States,



Document Type: Proceeding Paper

Part of: Engineering Mechanics

Abstract:

High-frequency interwell seismic data were acquired to examine full waveforms recorded in the pulsed mode and in the swept mode as well as to perform traveltime inversion tomography for mapping lithology changes and geological structures between boreholes. The first arrival-time-inversion tomography data together with sonic logs were used to evaluate an iterative conjugate-gradient algorithm for mapping lithology changes associated with strong velocity contrasts.

Subject Headings: Seismic tests | Sediment | Radiography | Mapping | Seismic waves | Seismic surveys | Seismic effects

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