Efficiency of “paleoprocessing” of seismic data 3D of Tavolozhsky licence area of Saratov region

The paper presents results of effective using of seismic technology, named by authors “paleoprocessing”, in complex seismogeological conditions of Saratov region. The territory is characterised by very complicated surface of carbonate Paleozoic, which has negative effect to reflection traveltime curves, distorting reflected waves from the borders of sedimentary section.
Materials and methods
Seismic data 3D.
Results
Use of “paleoprocessing” made possible continuous stable not distorted correlation of Carboniferous and Devonian seismic horizons.The implementation of this technique sharply increases geological efficiency of seismic survey 2D and 3D. 9 of 10 structures are confirmed by prospect wells. As a result of 3D seismic survey within Tavolozhsky license area of more than 250 square kilometers and used technologyof «paleoprocessing» paleotime and paleostructure maps were constructed for all target horizons, starting from marker surface-bottom of Kashir horizon - up to Proterozoic surface.
Сonclusions
Due to continuous stable correlation of reflectors along the whole work area resulting maps carry information with high accuracy and reliability not only about features of geological structure but about its specific peculiarities. Microforms of Proterozoic paleorelief and overburden Low and Middle Devonian sedimentary members are sharply defined. Within paleosections configuration of tectonic faults and their amplitude changing at the strike are mapped with reliability. On the basis of interpretation results of paleotime 3D cube the geological model of early discovered oil fields and prospective objects have been adjusted. Recommendation were done to lay out new prospect wells.