Extracting SV shear data from P-wave marine data
AssigneeBoard of Regents, The University of Texas System
InventorBob A. Hardage
Life of this patent
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Abstract
A system and method of processing seismic data obtained using a plurality of towed single-component receivers in a marine environment is described, the towed single-component receivers configured to measure compressional P waves. The method comprises retrieving seismic data from a storage device, the seismic data comprising P-P data and shear mode data, wherein the P-P data and shear mode data were both received at the towed single-component receivers configured to measure compressional P waves to generate the seismic data. The method further comprises processing the seismic data to extract SV-P shear mode data and generating shear mode image data based on the extracted shear mode data.
Claims19
A method of processing seismic data, the seismic data obtained using a plurality of towed receivers in a marine environment, the towed receivers configured to measure compressional P waves, comprising:
- retrieving seismic data from a storage device using a processing circuit, the seismic data comprising P-P data and shear mode data, wherein the P-P data and shear mode data were both received at the towed receivers without the presence of co-located horizontal single-component receivers;
- processing the seismic data to extract SV-P shear mode data using the processing circuit, wherein the processing comprises extrapolating wavefields represented by the seismic data downward to computationally create virtual sources and virtual receivers on a seafloor in the vicinity of an area imaged by the seismic data;
- and
- generating shear mode image data based on the extracted shear mode data using the processing circuit.
A system for processing seismic data obtained using a towed receiver, comprising:
- a data storage device to store seismic data comprising P-P data and shear mode data, wherein the P-P data and shear mode data were both received at a towed receiver without the presence of co-located horizontal single-component receivers to generate the seismic data;
- a processing circuit configured to process the seismic data to extract SV-P mode data and to generate a shear mode image based on the extracted SV-P mode data, wherein the processing circuit is configured to extrapolate wavefields represented by the seismic data downward to computationally create a virtual source and a virtual receiver on a seafloor in the vicinity of an area imaged by the seismic data.
Dependencies are inferred from the claim text.