Abstract

The geological structure and bathymetry of the deepwater part of the South Caspian indicate the possible formation of significant amounts of gas hydrates. The aim of the research is to calculate the volume of hydrocarbon gases of gas hydrates according to integrated geological–geophysical, geochemical, and thermodynamic data, as well as to study and predict the migration of hydrocarbon gases into the upper part of the section. For a regional characterization of gas hydrates to be used for 17 seismic profiles, 1282 gas survey samplings and thermodynamic data were collected in the deepwater area of the South Caspian. Estimation of the gas volume of gas hydrates is based on an interpretation of seismic (8.06 × 10¹² m³) and thermodynamic data (1.15 × 10¹³ m³) The result of the gas survey indicates heterogeneous nature of gas hydrate by area. Finally, it has been established that hydrocarbon gases in bottom sediments and sediments of the upper part of the South Caspian section are closely related to the sources of hydrocarbon formation, migration and other processes occurring in deeply buried sediments, as well as in the upper part of the section.

中文翻译：

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南里海的天然气水合物

摘要

南里海深水部分的地质结构和测深表明可能形成大量的天然气水合物。该研究的目的是根据地质，地球物理，地球化学和热力学综合数据计算天然气水合物的烃气量，并研究和预测烃气向该段上部的迁移。为了对将用于17个地震剖面的天然气水合物进行区域表征，在南里海深水区收集了1282个天然气勘测样本和热力学数据。估算天然气水合物的气体量基于对地震（8.06×10 ¹² m ³）和热力学数据（1.15×10 ¹³ m）的解释。³）天然气调查的结果表明天然气水合物的非均质性。最后，已确定底部沉积物和南里海剖面上部的沉积物中的烃类气体与深埋沉积物以及上部中发生的烃形成，迁移和其他过程的来源密切相关。的部分。