Using near wellbore modelling and dynamic calibration to improve permeability modelling in a giant carbonate field

V. Chandra*, R. Steele, P. Milroy, P. W.M. Corbett, S. Geiger

*Corresponding author for this work

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

3 Scopus citations

Abstract

In this study we have employed an integrated near wellbore upscaling and dynamic calibration workflow to resolve the persisting uncertainty concerning the apparent enhanced permeability in a large offshore carbonate field. Geological heterogeneities with the potential to radically influence the fluid flow behavior were identified and used to build probable geomodel and permeability model realizations to be calibrated with the production data. Chief among these is the presence and distribution of mechanically weak zones of enhanced porosity due to diagenetic corrosion that were inherently undersampled in the core data. Core and image log analysis also indicates the abundance of stylolites and associated tension gashes, which were also enhanced during the corrosion event and might impact the permeability anisotropy in the reservoir. The learning from this study provided valuable suggestions to resolve the need for permeability multiplier required for field level history matching. Improving the characterization of permeability distribution in the field provided an updated reservoir model that can contribute to the ongoing development plans to predict the incremental oil recovery more accurately.

Original languageEnglish (US)
Title of host publication75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013
Subtitle of host publicationChanging Frontiers
PublisherEuropean Association of Geoscientists and Engineers, EAGE
Pages1660-1664
Number of pages5
ISBN (Electronic)9781629937915
StatePublished - 2013
Externally publishedYes
Event75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiers - London, United Kingdom
Duration: Jun 10 2013Jun 13 2013

Other

Other75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiers
CountryUnited Kingdom
CityLondon
Period06/10/1306/13/13

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geochemistry and Petrology

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