Upscaling using a nonuniform coarsened grid with optimum power average

S. Merchan, S. Srinivasan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Geostatistical modeling techniques are capable of generating high-resolution reservoir models. Since a limited amount of information is available to model the reservoir, geological uncertainty is represented through a suite of equally probable models. Unfortunately, these high-resolution models are often too large to process through numerical flow simulators. Upscaling methods are required that reduce the size of detailed models while preserving the important geological characteristics of the reservoir. Most upscaling methods currently in vogue work with uniform grids. A new upscaling approach based on non-uniform coarsening with optimum power average is presented. The proposed algorithm identifies likely high connectivity regions using streamline simulations, then constructs a non-uniform coarse-scale grid preserving the areas with probable high connectivity and assign equivalent permeability to the coarse grid blocks using a optimum power average technique. The power average exponent is calibrated using the data from a series of single-phase flow simulations.

Original languageEnglish (US)
Title of host publicationCanadian International Petroleum Conference 2002, CIPC 2002
PublisherPetroleum Society of Canada (PETSOC)
ISBN (Print)9781613991091
StatePublished - Jan 1 2002
EventCanadian International Petroleum Conference 2002, CIPC 2002 - Calgary, Canada
Duration: Jun 11 2002Jun 13 2002

Publication series

NameCanadian International Petroleum Conference 2002, CIPC 2002

Other

OtherCanadian International Petroleum Conference 2002, CIPC 2002
CountryCanada
CityCalgary
Period6/11/026/13/02

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All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Energy Engineering and Power Technology

Cite this

Merchan, S., & Srinivasan, S. (2002). Upscaling using a nonuniform coarsened grid with optimum power average. In Canadian International Petroleum Conference 2002, CIPC 2002 (Canadian International Petroleum Conference 2002, CIPC 2002). Petroleum Society of Canada (PETSOC).