Method and apparatus for performing efficient modeling of extended-duration moving seismic sources

A method for modeling moving seismic sources, comprising:

• receiving a set of seismic data comprising a seismic signal generated over the course of a set period of time as a time scale;
• generating a predetermined number of partitioned seismic signals from the seismic signal, wherein each partitioned seismic signal is associated with a respective fixed position associated with a respective time interval as a portion of the time scale, wherein the predetermined number comprises an integer value greater than one;
• inserting a delta function at a receiver having a first location;
• recording a resulting wavefield measured at each respective fixed position in response to inserting the delta function at the receiver;
• convolving the resulting wavefield at each respective fixed position with a corresponding partitioned seismic signal of the respective fixed position to obtain generated results, for the predetermined number of partitioned seismic signals, in parallel;
• and
• summing the generated results from the convolving of the resulting wavefield at each respective fixed position with the corresponding partitioned seismic signal of the respective fixed position to construct a seismic image based on the time scale, wherein the seismic image is representative of the subsurface region and used to determine locations and properties of hydrocarbon deposits in the subsurface region.

A tangible, non-transitory, machine-readable media, comprising instructions that when executed cause a processor to:

• receive a set of seismic data comprising a seismic signal generated over the course of a set period of time as a time scale;
• generate a predetermined number of partitioned seismic signals from the seismic signal, wherein each partitioned seismic signal is associated with a respective fixed position associated with a respective time interval as a portion of the time scale, wherein the predetermined number comprises an integer value greater than one;
• apply a pulse compression technique to each partitioned seismic signal of the predetermined number of partitioned seismic signals to generate a compressed partitioned seismic signal corresponding to each partitioned seismic signal of the predetermined number of partitioned seismic signals;
• insert the compressed partitioned seismic signal corresponding to each partitioned seismic signal of the predetermined number of partitioned seismic signals in parallel;
• and
• sum the results of the velocity model builder obtained after inserting the compressed partitioned seismic signal corresponding to each partitioned seismic signal to construct a seismic image based on the time scale, wherein the seismic image is representative of the subsurface region and used to determine locations and properties of the hydrocarbon deposits in the subsurface region.