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

An algorithm for empirical integration of laboratory data on capillarimetry and relative phase permeability of oil and water for terrigenous deposits

UDC: 622.276.031.011.433
DOI: -

Authors:

¹ LUKOIL-Engineering LLC, Moscow, Russia

Keywords: capillary pressure curve, relative phase permeability, absolute permeability, water holding capacity, rocks properties

Annotation:

The relevance of the article is caused by the necessity of using the accumulated array of historical results on special types of core flow studies (capillary pressure curves, relative phase permeability for oil and water, determination of residual oil saturation and oil displacement coefficient by water) as well as determination of rocks properties in geological and hydrodynamic modeling of hydrocarbon deposits productive objects. The presence of a number of complicating factors (the studies were carried out at different times, in different laboratories, according to different research protocols, on different, limited in quantity, collections of core samples, uneven distribution of experiments over the range of rocks properties etc.) causes difficulties in the attempts to carry out a correct joint interpretation of such results of laboratory petro-physical studies. In turn, it leads to the necessity of conducting a comprehensive empirical analysis of the entire available sample of heterogeneous inconsistent data with the identification of the most reliable functional relationships between the parameters and the development of an algorithm for the required subsequent adjustment of the initial results of laboratory core studies based on the analytical work carried out.

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