Factoring in Scale Effect of Core Permeability at Reservoir Simulation Modeling

Ivan Putilov, Nikita Kozyrev, Vasily Demyanov, Sergey Krivoshchekov*, Alexandr Kochnev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents approaches for qualitative and quantitative estimation of the scale effect for the plug (30 mm diameter) and full-diameter (100 mm diameter) core samples based on statistical methods and data analysis including student and Pearson’s tests, stepwise regression, correlations, and other statistical approaches. Different methods were used to analyze carbonate cores from Elets reservoirs D3(el1) and D3(el3) located at Lambeyshorskoye field. The analysis has identified the core data scale effect. In the course of the study, a matrix of correction scale factors was constructed for the plug samples to reduce the scale effect. The work results open up the potential for using plug core samples on a par with full-diameter ones for addressing the problems of permeability array refinement for geologic (cells size 100×100 m) and dynamic models (cells size 50×50 or 25×25 m) and upscaling.

Original languageEnglish
Pages (from-to)1930-1942
Number of pages13
JournalSPE Journal
Volume27
Issue number4
DOIs
Publication statusPublished - 11 Aug 2022

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Geotechnical Engineering and Engineering Geology

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