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

Viswa Santhi shanti Chandra, Richard Steele, Paul Milroy, Patrick William Michael Corbett, Sebastian Geiger

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

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
Title of host publication75th European Association of Geoscientists and Engineers Conference and Exhibition 2013
Subtitle of host publicationChanging Frontiers: Incorporating SPE EUROPEC 2013
Place of PublicationHouten
PublisherEAGE Publishing BV
Pages1660-1664
Number of pages5
ISBN (Print)9781629937915
DOIs
Publication statusPublished - 2013
Event75th EAGE Conference and Exhibition 2013 - London, United Kingdom
Duration: 10 Jun 201313 Jun 2013

Conference

Conference75th EAGE Conference and Exhibition 2013
Abbreviated titleSPE EUROPEC 2013
CountryUnited Kingdom
CityLondon
Period10/06/1313/06/13

Fingerprint

permeability
calibration
carbonate
modeling
corrosion
upscaling
image analysis
fluid flow
anisotropy
learning
porosity
oil
history
distribution

Cite this

Chandra, V. S. S., Steele, R., Milroy, P., Corbett, P. W. M., & Geiger, S. (2013). Using near-wellbore modelling and dynamic calibration to improve permeability modelling in a giant carbonate field. In 75th European Association of Geoscientists and Engineers Conference and Exhibition 2013: Changing Frontiers: Incorporating SPE EUROPEC 2013 (pp. 1660-1664). Houten: EAGE Publishing BV. https://doi.org/10.3997/2214-4609.20130525
Chandra, Viswa Santhi shanti ; Steele, Richard ; Milroy, Paul ; Corbett, Patrick William Michael ; Geiger, Sebastian. / Using near-wellbore modelling and dynamic calibration to improve permeability modelling in a giant carbonate field. 75th European Association of Geoscientists and Engineers Conference and Exhibition 2013: Changing Frontiers: Incorporating SPE EUROPEC 2013. Houten : EAGE Publishing BV, 2013. pp. 1660-1664
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Chandra, VSS, Steele, R, Milroy, P, Corbett, PWM & Geiger, S 2013, Using near-wellbore modelling and dynamic calibration to improve permeability modelling in a giant carbonate field. in 75th European Association of Geoscientists and Engineers Conference and Exhibition 2013: Changing Frontiers: Incorporating SPE EUROPEC 2013. EAGE Publishing BV, Houten, pp. 1660-1664, 75th EAGE Conference and Exhibition 2013, London, United Kingdom, 10/06/13. https://doi.org/10.3997/2214-4609.20130525

Using near-wellbore modelling and dynamic calibration to improve permeability modelling in a giant carbonate field. / Chandra, Viswa Santhi shanti; Steele, Richard; Milroy, Paul; Corbett, Patrick William Michael; Geiger, Sebastian.

75th European Association of Geoscientists and Engineers Conference and Exhibition 2013: Changing Frontiers: Incorporating SPE EUROPEC 2013. Houten : EAGE Publishing BV, 2013. p. 1660-1664.

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

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AB - 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.

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Chandra VSS, Steele R, Milroy P, Corbett PWM, Geiger S. Using near-wellbore modelling and dynamic calibration to improve permeability modelling in a giant carbonate field. In 75th European Association of Geoscientists and Engineers Conference and Exhibition 2013: Changing Frontiers: Incorporating SPE EUROPEC 2013. Houten: EAGE Publishing BV. 2013. p. 1660-1664 https://doi.org/10.3997/2214-4609.20130525