Prospects of Poorly Studied Areas of the Timan-Pechora Province on the Basis of the Analysis of Regional Seismic Survey

摘要

The Timan-Pechora oil and gas province is characterized by considerable prospects of the peripheral complex-structured and poorly studied areas. Summary of the results of regional seismic studies enabled us to clarify tectonic and petroleum-geological zoning, and oil and gas potential of such areas as the northern and central regions of Izhma-Pechora syncline with adjusting Malozemelskaya-Kolguev monocline, characterized by a wide development of deflections and monoclines, subthrust structures of the Urals area and the internal parts of the depressions of Pre-Ural trough, grabens of Timan ridge, complex-structured areas of Chernyshev ridge and Pre-Pay-Khoy-South-Prinovozemelsky trough. It was established that the borders of oil and gas basin can be extended by including fold-horst formations of Timan ridge, fold-thrust dislocations of Western Ural megazone and southeastern segments of Pay-Khoi-Novaya Zemlya system. The other ways to expand oil and gas prospects are north-western regions of Izhma-Pechora syncline. Achieved level of study does not allow to reliably delineate zones of petroleum accumulations, but targeted exploration within them will help to maintain the rate of licensing and renewing of reserves in the Timan-Pechora oil and gas province in the medium to long term.