Seismic data acquisition with dual/triple sources and hexa-source

摘要

#$%^&*AU2019232940A120200409.pdf#####1002724560 ABSTRACT A method for configuring a multi-source and a hexa-source for acquiring first and second seismic datasets of a subsurface. The method includes selecting a number n of source arrays to create the multi-source; selecting a number m of sub-arrays for each source array, each sub-array having a plurality of source elements; imposing a distance D between any two adjacent source arrays of the multi-source; calculating a distance d between any two adjacent sub-arrays of a same source array so that bins associated with the first and second seismic datasets are interleaved; selecting source elements from at least six different sub-arrays of the n source arrays to create the hexa-source; and firing the multi-source to acquire the first dataset, and firing the hexa-source to acquire the second dataset.14/15 SELECTING A NUMBER N OF SOURCE ARRAYS TO CREATE THE MULTI-SOURCE 00 SELECTING A NUMBER m OF SUB-ARRAYS FOR EACH SOURCE ARRAY, EACH SUB-ARRAY 1102 HAVING A PLURALITY OF SOURCE ELEMENTS IMPOSING A DISTANCE D BETWEEN ANY TWO ADJACENT SOURCE ARRAYS OF THE MULTI SOURCE 04 CALCULATING A DISTANCE d BETWEEN ANY TWO ADJACENT SUB-ARRAYS OF A SAME SOURCE ARRAY SO THAT BINS ASSOCIATED WITH THE FIRST AND 1106 SECOND SEISMIC DATASETS ARE INTERLEAVED SELECTING SOURCE ELEMENTS FROM SIX DIFFERENT SUB-ARRAYS TO CREATE THE 1108 HEXA-SOURCE FIRING THE MULTI-SOURCE TO ACQUIRE THE FIRST DATASET, AND FIRING THE HEXA-SOURCE TO 1110 ACQUIRE THE SECOND DATASET FIG. 11