3 1997

CONTENTS

PROBLEMS OF OIL AND GAS GEOLOGY

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Khalimov E.M., Kolesnikova N.V. Commercial reserves and resources of natural .bitumen and superhighviscous oils of Russia and promising geotechnologies of their development

OIL AND GAS POTENTIAL AND SUBSTANTIATION OF EXPLORATION TRENDS

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Klubov .. Natural bitumen shows within the Arctic Eurasian and North American margins

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Agalakov S.E. Gas hydrates in Turonian deposits in the north of West Siberia

OIL AND GAS RESERVOIRS

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Abrosimova .., Ryzhkova S.V. Some features of hydrocarbon traps, reservoirs and pools in Pre-Jurassic rocks of West Siberia

GEOPHYSICAL INVESTIGATIONS

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Baldin V.A., Kunin K.N., Kunin N.Ya. New ideas about structure and genesis of diagonal system of megaswells in the Enisei-Khatang trough

TESTING AND DEVELOPMENT OF FORMATIONS

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Petrenko P. A., Varyagov S.A., Yaroshenko A. A. Forecasting of initial formation pressure