Computer-implemented method and system employing compress-sensing model for migrating seismic-over-land cross-spreads

A computing system for performing a computer-implemented method that employs compress-sensing models to efficiently migrate seismic over land-cross spreads, to reveal an accurate location and amplitude of a target subsurface hydro-carbonate using prestack seismic data acquired in a survey region, comprising:

• a telemetry system for sending and receiving seismic model input data and land acquisition input data from a survey region;
• a memory resource, for storing data corresponding to the operations of computing, and generating;
• a computer system output device;
• and
• a non-transitory computer readable memory device coupled to the telemetry system, coupled to the memory resource, and coupled to the computer system output device, programmed for performing the operations of:
• acquiring seismic model input data and land acquisition input data from a survey region;
• storing the acquired seismic model input data and land acquisition input data to a memory resource;
• retrieving the stored seismic model input data and land acquisition input data from the memory resource;
• regularizing the retrieved land acquisition input data by employing either flat surface or floating horizon algorithms;
• decomposing the retrieved seismic model input data into sparse common-spread beam centers;
• generating common-spread gathers from the decomposed common-spread beam centers;
• filtering space-time signals from the generated common-spread gathers sharing regularized land acquisition input data;
• generating filtered common-spread gathers from the filtered space-time signals;
• storing the generated common-spread gathers, and the generated filtered common-spread gathers to a memory resource;
• retrieving the stored common-spread gathers from the memory resource;
• computing laser-beam raytracing, for each retrieved common-spread gather;
• generating laser-beam traced rays from the computed laser-beam raytracing;
• storing the generated laser-beam traced rays to a memory resource;
• retrieving the stored common-spread gathers, and laser-beam traced rays from the memory resource;
• computing common spread slant stacking for each retrieved common-spread gather, and laser-beam traced ray;
• generating a common spread beam migration image from the computed common spread slant stacking;
• and
• storing the generated common spread beam migration image to a memory resource.