Geology, geography and global energy

Scientific and Technical Journal

GEOMORPHOLOGICAL AND GEOLOGICAL AND GEOGRAPHICAL CONDITIONS OF DEVELOPMENT OF THE SUBSOIL OF THE VOLGA-AKHTUBA REGION

2016. №4, pp. 30-35

Mukhasheva Alina Kh. - post-graduate student, Astrakhan State University, 1 Shaumyan sq., Astrakhan, 414000, Russian Federation, geologi2007@yandex.ru

Development of a deep subsoil of the Volga-Akhtuba region is connected with the numerous natural difficulties existing on the land surface of this region. These are, first of all, geomorphological features of a relief, the dismembered sites of the territory on certain water basins, boggy lowlands, powerful hydrological network, seasonal powerful fluctuations of a surface of the water (floods, lack of water, mean water, etc.). These can also be attributed the high content of hydrogen sulfide and carbon dioxide in products of layers, considerable depths of productive layers, salt and dome tectonics, development of the relevant activities for an industrial and ecological safety, accounting of cost efficiency of development of the project, etc. There are problems which influence can be minimized: low degree of study of a geological structure of the Volga-Akhtuba region and corresponding complexes of rocks, their conditions of forming and so forth. High risks of exploration works are connected with uncertainty of the considered region geological models, nature of a flyuid saturation, levels of interfluid contact, tectonics. High technological hazards are caused not only difficult superficial conditions and strict ecological requirements, but also carrying out well-drilling with difficult trajectories of a trunk, variability of the combined pressure on a section that complicates designs of wells, their posting, geonavigation and development.

Key words: Волга, Ахтуба, геоморфология, гидрология, бурение, скважина, геология, Volga, Akhtuba, geomorphology, hydrology, drilling, well, geology

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