ABSTRACT
The article gives a general description of tar sandstone deposits in the Chechen Republic. In total, nine areas of outcrops of sand and sandstones of the Karagansky and Chokraksky stages of the Neogene system, which are confined to two structural zones, are the zone of the Advanced Ranges and the zone of the Montenegrin monocline. Four zones were identified in each area.
All deposits of the Advanced Ridge zone are small, due to their local distribution of bituminosity and a steep occurrence of the host reservoirs. In addition to the volume of reserves, the deposits of the Montenegrin monocline are unpromising due to their remoteness from the main transport and energy highways.
When studying the bituminous strata of the promising sections, the following problems were solved: the geological structure of the section was studied; layers with industrial significance are highlighted in the context of the tar layers; bitumen content and the nature of its change are determined; the physicochemical characteristics of bituminous rocks and interposition with the host rocks are specified; qualitatively evaluated and determined technological parameters of bitumen; estimated mineral reserves are estimated.
The general characteristics of bituminous rocks include - the uneven distribution of bituminous in both individual intersections and in areas as a whole; are classified as - from low bitumen to medium bitumen. By particle size distribution and particle size modulus, finely and medium-grained, by mineralogical composition, quartz sand.
All described areas of bituminous rocks can be attributed to promising development at the local regional level.
