METHOD OF DETECTING OR MONITORING SUBSURFACE HYDROCARBON RESERVOIR-SIZED STRUCTURE Russian patent published in 2014 - IPC G01V1/28 

FIELD: physics; geophysics.

SUBSTANCE: invention relates to geophysics and can be used in searching for hydrocarbon deposits. Subsurface hydrocarbon reservoir-sized structures are detected or monitored by ambient noise tomography. Interface wave data are recorded for interface waves excited by seismic ambient noise. The data are recorded simultaneously at pairs of locations with distance between the locations of each pair being less than or equal to wavelength at the frequencies of interest. The recorded data are processed by tomography to obtain group-velocity and/or phase-velocity tomograms, which are inverted to obtain seismic parameters values, such as seismic velocity. The seismic parameters may then be used to form a geological model of a geologic region of interest.

EFFECT: high accuracy of probing data.

29 cl, 12 dwg