Geophysical processes and biosphere: article

Аnnotation: The work purpose - analysis of the results geodeformation monitoring at the oil and gas condensate field Yu. Korchagin situated in the Caspian sea. The slopes of the base of the offshore platform are fixed with the help of inclinometers of the Inklin-2 type, AGS 5. The development of software for data collection and storage was carried out by the Shirshov Institute of Oceanology of the Russian Academy of Sciences. Processing time series inclinometer observations were carried out using specialized software tools developed in IPE RAS (package WinABD). The amplitudes of tidal and seismic effects are estimated, the dynamics of changes in the position of the mining platform in time is described. Periodic fluctuations in the roll with a period of 24 hours and an average annual amplitude of 0.005° and a differentiation with a period of 12 hours and an average annual amplitude of 0.001°, presumably associated with breezes, were revealed. It is shown that gravitational-tidal effects (Lunar-Solar static and sea tides) do not have a significant impact on the recorded slopes of the platform. The results of mathematical modeling of sea bottom deformations due to field development are presented and it is shown that the maximum settling amplitude is of the order of 3 mm. A model of a deformable reservoir-reservoir was considered, which includes two oil-saturated reservoirs: the Neocomian substage and the Volzhsky stage. Evaluation of heel and trim at the location of the platform showed that the roll due to the mining can reach 6∙10