Based on the analysis of seismic attributes, the shape of the SP curves, lithological and petrophysical data, and well test results, the sedimentation environments of the Bajocian, Berriasian-Hauterivian, Aptian and Cenomanian sandstone beds of the Geophysical field were reconstructed; its facies and zones of sandstone beds distribution and its claying are determined. According to the results of the research for reservoir J_2-4 (Bajocian) latitudinally oriented paleoflows and orthogonal to them zones of sandstone bodies associated with alongshore terrigenous material transfer were contoured during periods of hydrodynamic activation of the aquatic environment. For sandstone bed BG₁₆ of the Akhskaya Formation: facies of alluvial cones, area of temporary flows discharge, offshore regressive bars and shore banks were identified. It was considered that the sandstone bed BG16 was formed in an environment of shore sedimentation systems moving towards the sea basin. The sandstone beds TP_23-26 of the Tanopchinskaya Formation were classified as to sandstones of river channels and channel banks of meandering rivers. It is concluded that the TP_2-3 sandstone beds in the upper part of the Tanopchinskaya Formation are correspond to facies of riverbeds and flow of discontinuous flows. In the upper part of the Cenomanian sandstone horizon PK₁, several transgressive cyclites were distinguished, the formation of which occurred in marginal-marine conditions; in the lower part of the horizon, where sediment formation was under paleodelt conditions, sandy bodies along the coast are predicted.

The work describes a new developed cell, which allows simultaneous acoustic measurements and X-ray tomography of hydrate-bearing samples. The results of the first experiments on the formation of xenon hydrate in a sand sample by the “excess gas” method are presented. The formation of gas hydrate in the sample led to compressional wave velocity increase associated with cementation of granules with hydrate. The obtained tomographic images showed that formed xenon hydrate envelops sand granules. A uniform distribution of hydrate in the pore space in the scan area is also observed.

The paper presents the results of an analytical review of the study properties rocks and their saturating fluids by dielectric spectroscopy, as well as experimental studies of their complex dielectric constant and NMR characteristics. The connection of the complex dielectric constant of oil with its geochemical properties and NMR characteristics is established.

The article is devoted to the issues of geological correlation of oil and gas deposits of the Riphean and Vendian North-Aldan PR and the zone of junction with the Predpatom PR (Eastern Siberia). According to the data of geophysical studies of wells, reference horizons are identified and their geophysical and lithological characteristics are given. The boundaries of the Vendian and Riphean sedimentary complexes have been clarified. Correlation profiles are constructed. The results of the work allowed us to detail the schemes of dissection of the Turukhano-Irkutsk-Olekminsky Vendian carbonate sediments in the North part of the Aldan anteclise.