Structural geological features of terrigenic Albian-Aptian rocks of the Tersko-Sunzhensky oil and gas bearing region were studied, as well as their petrophysical and reservoir properties obtained from analysis of field geophysical tests and laboratory core analysis from previous years. Recently, reinterpretation of archive material for several wells and deposits has been done with modern automated systems and methods to refine the determination of the reservoir type in Albian-Aptian terrigenic deposits within the territory of interest.
Within the Terek-Sunzha oil and gas region of the Eastern Caucasus a productive sediments are clearly expressed by the classical diapir due to the increase in power in the arched part of the strata of the Maikop clays. In accordance with the theory of I. M. Gubkin, developed based on the analysis of the structure of the oil and gas structures of mud volcanoes of Azerbaijan, diapirism of the structure is an important prerequisite for the formation of a mud volcano. The article provides a comparative analysis of diapir structures of the Terek-Sunzha oil and gas region of the Eastern Caucasus, which is quasi-mud unripe volcanoes, and structures of mud volcanoes in the SouthEastern end of the Caucasus range (the Apsheron Peninsula and other territories of Azerbaijan) and the NorthWestern end of the Caucasus range (the Kerch and Taman Peninsula). It is shown that the formation of diapir structure, when, in the context of high power clay strata, is not a sufficient condition for its transformation into a mud volcano. In such geological conditions, it is essential to determine the capacity of clay strata, but also the degree of its water-filled porosity, visco-plastic and fluid-forming properties, contributing to the transition of the breed in a phase of active current and the coming to the surface Научный журнал КубГАУ, №130(06), 2017 года http://ej.kubagro.ru/2017/06/pdf/32.pdf 2 но степень её водонасыщенной пористости, формирующая вязко-пластические и текучие свойства, способствующие переходу породы в фазу активного течения и излияния на поверхность Ключевые слова: ДИАПИРОВАЯ СТРУКТУРА,
A brief overview of the proposed method of processing and interpretation of well logging data in Terrigenous deposits. And also presents results of data well survery with its application using the example terrigenous deposits Tersko-Sunzhensky petroleum region. The findings suggest that the interpretation of the results of the GIS, as described TABC gives accurate information to determine geological characteristics and hydrocarbon saturation Lower Cretaceous terrigenous deposits of the Tersko-Sunzhensky petroleum region.
The article touches upon the issues of tectonic structure of the Terek-Sunzhensk oil and gas region. A brief description of the lithologic and stratigraphic characteristics of the Cretaceous sediments is given, the influence of the growth of structures in different geological time periods on changes in fracture density of various generation is analyzed. Keywords-structure; elevation; cracks; height of bend; oil and gas depositsI.
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