The reserve of more or less considerable oil-bearing structures, which were easily revealed by two-dimensional seismic survey in West Siberia, has been almost extracted. An increase of oil storage is due to prospecting of deep-seated and complex deposits in the Jurassic and Neocomian strata. The successful process of searching works in the new settings, the authors perform the necessary complexing of traditional methods and apply the developing and new methods of geological-geophysical investigation. (1) Application of three-dimensional and multi-dimensional seismic survey as the initial basis to create the spatial geological-geophysical models of the oil-bearing territories. (2) Development of methods of the seismo-(lithmo) stratigraphic analysis, which includes the seismo-facial and paleogeomorphological studies. Their application has permitted the authors to find out new details for the geological-evolutionary model of the gigantic Ob river oil-bearing zone and, possibly, to discover new large deposits related to the Jurassic and Neocomian complexes. (3) Structural-tectonic interpretation of the seismic time cross-sections in accordance with morphology of the reflected waves with an aim to reconstruct the primary sedimentation structure of geological associations (seismic complexes), characteristics of their further deformational alterations, and creation of the structuraltectonic models of the oil-bearing areas with prognosis for combined traps of hydrocarbons. (4) Tectonic-physical modeling to determine peculiarities in distribution of stress (consolidation), extension (deconsolidation), and shift zones forming the secondary fissure-porous collectors and to reveal the chambers of intra-layer litho- and hydrostatic tensions in the closed and connecting structural-hydrodynamic systems in the near- and inter-well space. The modeling is being done by two ways: (1) Polarization-optical method of investigation of tension in the layered media of different density. (2) Tectonic-sedimentation method of investigation of deformational structures, which are formed during the process of generation of the layered medial through sedimentation in water. Such investigations have been done for the typical West Siberia dislocations of the platform settings: upthrust structures of the Em-Egov and Palyanov areas, con- and post-sedimentational dislocations in the structures of inversion development of the Novomolodezhny deposit, gravitational troughs, flexures, anticlines, foldingnappe dislocations at the platform boundaries, etc. The complexing of the methods mentioned provides the complete prognostic interpretation of the data of seismic survey and drilling to reveal the structure-morphological criteria of oil content at the territories and to predict the deposits inside the definite deformational structures in accordance with the data of physical modeling.
