Title

K. G. Skachek, A. I. Larichev, A. A. Kachkin, O. I. Bostrikov

Oil and gas forecast horizon the Ju2 OOO «Lukoil–Western Siberia» in the Latitudinal Ob

With the decrease of easily recoverable hydrocarbon reserves in the Cretaceous deposits, the need to increase oil production from marginal complex reservoirs of the Middle Jurassic J2 horizon is strengthened. In some pools of Surgut and Nizhnevartovsk vaults, accumulations are discovered or commercial oil flows are obtained. 27 prospective sites including undrilled ones are distinguished. When planning the sequence of involvement of these objects in the development, the method of internal geological analogies was used. Estimates of the initial geological resources of oil and dissolved gas at promising sites are obtained; recommendations for further research are made.
Key words: Western Siberia, Latitudinal Ob, J2 horizon, oil accumulations, criteria for prediction, extent of oil and gas formation, quantitative evaluation of resources.