Mechanism of oil displacement during WAG in porous media with micro-inhomogeneities

A. Shandrygin, V. Shelepov, R. Ramazanov, N. Andrianov, D. Klemin, A. Nadeev, I. Yakimchuk

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingspeer-review

14 Citations (Scopus)

Abstract

The dynamics of oil displacement using water and gas mixtures in porous media is studied using digital rock analysis. The technology includes scanning of core samples using X-Ray micro tomography, creating of digital models for the samples, and running hydrodynamic modeling on pore scale using the density functional approach. The results include visual snapshots of phase distributions on pore scale for various time instants of oil displacement by water and water-gas mixtures. Due to WAG the displacement coefficient was increased by 5% to 10.5% for water-wet samples and by 20-21% for oil-wet samples. This effect was explained by analyzing the dynamics of oil displacement on a pore scale. The simulations also allow studying the dependency of the displacement coefficient on WAG regimes for water-wet and oil-wet media.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - SPE Russian Petroleum Technology Conference
PublisherSociety of Petroleum Engineers
ISBN (Electronic)9781613994368
DOIs
Publication statusPublished - 2015
EventSPE Russian Petroleum Technology Conference - Moscow, Russian Federation
Duration: 26 Oct 201528 Oct 2015

Publication series

NameSociety of Petroleum Engineers - SPE Russian Petroleum Technology Conference

Conference

ConferenceSPE Russian Petroleum Technology Conference
Country/TerritoryRussian Federation
CityMoscow
Period26/10/1528/10/15

Programme Area

  • Programme Area 3: Energy Resources

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