«Proceedings of Gubkin University»

Adaptive technology for determining relative volume of mobile fluids in oil and gas reservoirs according to well logging data

UDC: 550.8.053
DOI: -

Authors:

¹ National University of Oil and Gas “Gubkin University”, Moscow, Russian Federation

Keywords: petrophysics, well logging data interpretation, reservoir properties, effective porosity, dynamic porosity

Annotation:

Adaptive methods for determining three types of reservoir porosity (total, effective and dynamic) have been developed at the Department of Geophysical Information Systems in order to increase the information content of the results of well logging and expand the arsenal of interpretation techniques. The developed methods based on the petrophysical invariant also make it possible to determine the values of boundary porosity, residual water saturation, and aggregate clay content and forecast the displacement coefficient. The quantitative determination of the proportion of mobile fluid in the pore space of oil and gas reservoirs (effective and dynamic porosity and displacement coefficient) is based on the correspondence of the boundary physical parameters of the methods of geophysical research of wells to the boundary petrophysical parameters. The possibility of interactive control of interpretation algorithms makes it possible to implement an adaptive methodology for interpreting well logging data (the principle of adaptivity of algorithms).

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