source-receiver position estimation using direct arrival and inversion modeling

摘要

the present invention relates to a method for correcting physical positions of seismic sensors and / or seismic sources for a seismic data acquisition system. the method includes estimating (1200) a respective energy generated by each source element, which belongs to an array of sources; calculate (1206) a respective energy recorded by each individual seismic sensor, which belongs to a composite receiver; add (1210), for each individual seismic sensor, all the energies generated by all the source elements; estimate (1212) a model of direct arrival waves that propagate from source elements to individual seismic sensors; calculate (1212) positions of the individual seismic sensors based on the direct arrival wave model; compare (1216) calculated positions of individual seismic sensors with observed positions of individual seismic sensors; select (1218) a best calculated position for each of the individual seismic sensors based on an objective function; and correct (1224) the observed positions of the individual seismic sensors with corresponding best calculated positions.