Geology, geography and global energy

Scientific and Technical Journal

2016. №4, pp. 82-86

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

The Volga-Akhtubinsk region (PITCH) is the largest subsalt structure of Caspian Depression. According to the available geologic-geophysical data PITCH predstvlyat itself the oblong large carbonaceous massif more than 450 km long which central part develops on the western wing of Astrakhan Anticline. The composite mining-and-geological conditions of construction of wells on Astrakhan Anticline are caused by solyanokupolny tectonics. On earlier conducted researches the asymmetric structure of wings, an intensive predneogenovy denudation of the arches, formation of structures of a lixiviation is characteristic of domes of the southern part of Astrakhan Anticline where Aksaraysky, Seitovsky and Utigensky hydrochloric domes are located. Prisvodovy parts of domes tectonic are broken and complicated by zones of a tectonic jointing, and also compression sections and stretchings of rocks, and also development of sulfate-terrigenous water plentiful pro-layers with AVPD in the thickness of salts. All these factors promote change of filtration characteristics of rocks. When carrying out exploration and operational works on the Astrakhan gas condensate field to the east PITCH the production organizations constantly interfere with with a number of difficulties which significantly reduce effectiveness of the conducted researches and do not allow to provide preparation of the field for the production development with high degree of reliance.

Key words: нефтегазоносность, перспективы, соляная тектоника, Волго-Ахтубинский регион, горные породы, oil-and-gas content, prospects, hydrochloric tectonics, Volga-Akhtubinsk region, rocks

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