DOI: 10.24412/2076-6785-2021-1-30-33
Abstract
Currently, the Rosneft Oil Company is implementing an innovative project to develop technologies for the study and development of unconventional gas facility in the sediments of the Berezovskaya suite in Western Siberia. Deposits of the target formation NB1, with which the main prospects are associated, are represented by a porous-fractured reservoir type. This article contains detailed description of the properties and parameters of the genetic fractures in the NB1 formation which can be used as an analog in the similar type reservoirs. The methodology used in this article combines several different multi-scale approaches to the fractures study: from a macro description
of the core to the high resolution methods like mineral composition of the near-fracture space by the X-ray fluorescence analysis and REM method of thin sections made through the cracks identified on the core.
Materials and methods
Macro description of core material, classification of fractures by genetic characteristics, determination of fracture space parameters, X-ray fluorescence analysis, X-ray energy-dispersive microanalyzer, stage analysis.
Keywords
Berezovskaya Formation, siliceous-clayey deposits, unconventional reservoir type, macro-fracturing, micro-fracturing, tectonic fractures, cleavage, near-fault fractures, lithogenetic fractures, syneresis, reservoir model
