What is it about?
Surface reflection seismic inversion techniques are currently applied by the oil and gas industry for mapping rock physical properties. We have shown that poststacked waveform seismic inversion increases the velocity resolution when is constrained with well logs and lithology. We implemented an inversion algorithm to invert seismic data, and as an example we applied the algorithm to dataset from the Waggoner Ranch oil reservoir located in northeast Texas.
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Why is it important?
The seismic interpreter can map flow units saturated with hydrocarbons that are undetected with currents techniques. The interpreter shouldn’t fully rely with current techniques, such as seismic impedance inversion for delineating pay zones in oil reservoirs.
Perspectives
Waveform inversion can provide velocity images with a high degree of resolution that can delineate important geological features in hydrocarbon reservoirs. We hope the article makes the geophysical community aware of the potential that inversion of poststacked seismic data can offer to the interpreter for the characterization of reservoirs.
Geophysicist Jorge O Parra
Southwest Research Institute
Read the Original
This page is a summary of: Waveform inversion of poststacked reflection seismic data with well log constrained using nonlinear optimization methods, The Leading Edge, December 2017, Society of Exploration Geophysicists,
DOI: 10.1190/tle36121032a1.1.
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