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Identification of Geological Facilities Under the Conditions of Gas Saturation of the Upper Part of the Profile During Engineering Site Investigations
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Marine Technologies 2019, Apr 2019, Volume 2019, p.1 - 8
Abstract
Summary
Data received by seismic reflection profiling show that in the Gulf of Ob starting from the depth of 1–2 meters under mudline almost everywhere sediments saturated by non-associated gas are presented. The presence of nonassociated gas does not allow exploring deeper levels of sedimentation masses. Usage of thorough interpretation of magnetic response allowed to locate the area of tectonic tension of earth material, which was apparently the fault zone complicated with intrusive formations. Due to the lack of a priory information and possibility to make a comprehensive assessment of geology and geophysics data, the 2d modeling was impossible on the present stage. A case study of computational methods shows that the depth of tectonic dislocation area cannot be more than 250 meters.
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