Evaluation of carpet shooting geometry on a dual acquisition survey

Advances in the development of seismic acquisition equipment, compact storage capacity that can hold a huge amount of seismic data, and the ability to efficiently deploy such equipment in marine or vast and open land environments enable the acquisition of ultra-high-density carpet geometry seismic surveys. In a pilot survey, the data were acquired using the carpet shooting geometry with two types of receivers (geophone arrays and single sensors) to evaluate the feasibility of carpet geometry (operational) and the processing of the large amount of data produced by these types of surveys. The processing workflow included all compute-intensive processing steps typical of a land data time-processing sequence. The seismic processing results were shared for the geophone-array and single-sensor data. The particulars in the sequence were then discussed, specific to each data type. The benefit of carpet shooting for data preprocessing and inversion was demonstrated and compared to legacy acquisition, highlighting the added benefit of single-sensor data, which in principle contain much more low frequencies — needed for full-waveform inversion (velocity model building and imaging) — than geophone-array data.