Continuous adaptive surface wave analysis for three-dimensional seismic data
AssigneeWesternGeco L.L.C.
InventorsClaudio Luciano Strobbia, Anna Glushchenko
Life of this patent
Estimating the term…
Abstract
A technique includes receiving seismic data acquired in a survey of a region, the region being associated with locations; processing the seismic data to estimate at least one frequency dependent surface wave property over the region; based at least in part on the estimated frequency dependent surface wave property(ies), determining a frequency dependent data processing geometry for each location; and processing the seismic data based at least in part on the determined data processing geometries to derive a spatially continuous representation of a surface wave property across the region.
Claims13
A method comprising:
- receiving seismic data acquired by receivers in a survey of a region, the region being associated with locations;
- processing the seismic data to estimate at least one frequency dependent surface wave property over the region;
- locally determining frequency dependent data processing geometries across the region, comprising determining a frequency dependent data processing geometry for each location based at least in part on said at least one estimated frequency dependent surface wave property evaluated at said each location, the frequency dependent data processing geometry identifying a geometry-based selection of the receivers;
- and
- processing the seismic data in a processor-based machine based at least in part on the determined data processing geometries to derive a spatially continuous representation of a surface wave property across the region.
A system comprising:
- an interface to receive seismic data acquired by receivers in a survey of a region, the region being associated with locations;
- and
- a processor to:
- process the seismic data to estimate at least one frequency-dependent surface wave property over the region;
- locally determine frequency dependent data processing geometries across the region by determining a frequency-dependent data processing geometry for each location based at least in part on said at least one estimated frequency dependent surface wave property evaluated at said each location, the frequency dependent data processing geometry identifying a geometry-based selection of the receivers;
- and
- process the seismic data based at least in part on the determined data processing geometries to derive a spatially continuous representation of the surface wave property across the region.
The system 7, wherein the processor is adapted to:
- for each location, select gathers based on the associated frequency-dependent data processing geometry and process the selected gathers.
An article comprising a computer readable storage medium storing instructions that when executed by a computer cause the computer to:
- receive seismic data acquired by receivers in a survey of a region, the region being associated with locations;
- process the seismic data to estimate at least one frequency-dependent surface wave property over the region;
- locally determine frequency dependent data processing geometries across the region by determining a frequency-dependent data processing geometry for each location based at least in part on said at least one estimated frequency dependent surface wave property evaluated at said each location, the frequency dependent data processing geometry identifying a geometry-based selection of the receivers;
- and
- process the seismic data based at least in part on the determined data processing geometries to derive a spatially continuous representation of the surface wave property across the region.
Dependencies are inferred from the claim text.