Scientific and technical journal

«Geology, geophysics and development of oil and gas fields»

ISSN 2413-5011

Geology, geophysics and development of oil and gas fields
Types of reservoirs of pre-jurassic deposits of the Ustyurt region according to well logging data and methods of their identification

UDC: 550.832:553.98(575.1)
DOI: 10.33285/2413-5011-2022-8(368)-17-23

Authors:

KHALISMATOV IRMUKHAMAT KH.1,
ZAKIROV RAVSHAN T.1,
ZAKIROV AZAMZHON A.1

1 Tashkent State Technical University, Tashkent, Uzbekistan

Keywords: reservoir, non-reservoir, terrigenous, carbonate, granular, formation, core, porosity, permeability

Annotation:

The actual materials of drilling, testing and well logging of the Ustyurt oil- and gas-bearing region of Uzbekistan are summarized. The signs of non-collectors and granular collectors are described and the basis of the methodology for allocating collectors according to well logging data is compiled. The results of in-line processing of well logging data, obtained from 99 wells in the region are analyzed. When interpreting the well logging data, these groups of rocks were classified. In the section of each lithological-stratigraphic complex, layers and interlayers with all the qualitative features of granular reservoirs were identified. According to the results of the core study and the in-line interpretation of well logging data in the Pre-Jurassic sediments, the development of reservoirs characterized by a rather complex structure of the pore space was revealed, which were conditionally divided into three groups.

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