Justification of the approach to searching for and exploring productive objects: a case study of the Krasnoleninsk and Angaro-Lena oil and gas regions

The article provides a rationale for the approach to the search and exploration of local productive zones based on the analysis of geographically distant objects of different geological structures: the Tyumen and Chora formations. The need for a joint study of the problem of localizing oil and gas deposits has been identified by comparing the patterns of location of local productive objects in remote territories that differ in their geological structure. The relevance of the study is determined by the significant degree of depletion of reserves of hydrocarbon deposits, characterized by the simplest development conditions and the need to find an approach to the study of deposits, within which the establishment and description of the patterns of deposit structure cause difficulties. The primary information for the study was drilling data, geophysical well survey results, description of core material, petrophysical survey data, information on testing and well performance dynamics, 2D seismic interpretation materials, as well as published articles. Methods of analysis and comparison were adopted as a basis in order to highlight common features of the distribution of hydrocarbon deposits in the studied areas. In the course of the study, the prerequisites were formed for the development of a comprehensive methodology for studying the structure of hydrocarbon deposits of Tyumen and Chora formations from the perspective of an approach to the exploration of complex objects, implying a joint study of the possibilities of processes described separately by both organic and inorganic hypotheses of oil and gas generation. The need to introduce an approach to geological modeling that takes into account the fractal structure of geological systems is formulated.