The article provides general information about the study area, the methodology of the performed 3D seismic surveys, and brief information about its geological and geophysical knowledge. Field work was carried out on land, sea, small lakes and ponds, and in this regard, various sources of excitation of elastic vibrations were used, as well as seismic receivers: explosive, acoustic, vibration sources and geophones, hydrophones, marshphones were used. This, in turn, made it important and relevant to obtain a single 3D cube from seismic records. This problem was solved by simulation.

After obtaining a single 3D seismic data cube, an “express ABO analysis” was carried out in order to identify anomalous intervals with good reservoir properties and establish their location in plan. ABO analysis calculations were carried out in the binary version of the Schue equation, i.e. coefficient of reflection of a longitudinal wave (P-wave) for the normal state of incidence (coefficient A) and the ability of the P-wave to be reflected at intermediate values of angles of incidence (angles 0-300). As a result of the ABO analysis, a zone of improved reservoir properties was identified and mapped in the upper part of the Miocene on the slope of the buried Khasilat-2 paleo-elevation. On dynamic (amplitude) sections, this zone is distinguished by intensity against the background of a low-amplitude seismic record. The contours of this anomaly are shown on the map of minimum amplitudes along the SG-V seismic horizon.