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PESA/SPE Vic/Tas March Technical Meeting

Wednesday, March 20 @ 12:00 - 14:00

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Guest Speaker: Mark Knackstedt, Australian National University

Mark Knackstedt (BSc, Columbia; PhD, Rice) is a Professor at the Department of Applied Mathematics at the Australian National University. He was a 2015-2016 SPE Distinguished Lecturer and past (2007-2008, 2009-2010, 2012-2013) SPWLA distinguished speaker. He was awarded the George C. Matson Memorial Award from the AAPG in 2009 and the ENI award for New Frontiers in Hydrocarbon Research in 2010.

 

A central part of the reservoir characterisation and prediction process is the construction and validation of accurate numerical models of rock and dynamic flow properties at a wide range of scales. Accurate generation of model inputs at multiple scales is one of the biggest challenges facing the industry today.  Digital rock analysis, an emerging technology driven by rapid advances in 3D pore scale imaging and computation has multiplied the amount of data acquired from core material and improved laboratory data analysis and quality.

In this talk we will describe the extension of the Digital rock analysis imaging and modelling technology from laboratory scales to larger volumes and illustrate the importance of incorporating realistic sedimentary geometries at multiple scales (metre to 10 metre scales). Focussing on a laminated sandstone reservoir we illustrate the significant impact of small-scale heterogeneities on flow and hydrocarbon recovery or CO2 storage processes. Incorporation of these heterogeneities into larger scale models as part of a practical workflow has been limited and the scale-transgressive effects of small-scale geological heterogeneities in larger scale numerical simulations are often accounted for through upscaling.

Current upscaling techniques do not capture all relevant scales of heterogeneity and only give reliable results for a limited set of scales and flow scenarios. We illustrate an ability to link results from pore scale imaging and laboratory flooding experiments to the larger scales including whole core and borehole log measurements. This linking is achieved effectively by developing workflows that consistently incorporate heterogeneity information from millimetre to meter scales coupled with the appropriate flow dynamics to offer more realistic predictions of flow behaviour. We illustrate the impact of a calibrated multistep method on the static and multiphase flow predictions from the pore to the whole core scales. This data offers greater confidence in populating reservoir models with static and dynamic data and provides improved predictions of hydrocarbon recovery and carbon storage.

 

Details

Date:
Wednesday, March 20
Time:
12:00 - 14:00

Venue

The Kelvin Club
10-13 Melbourne Place (off Russell Street), Melbourne, Victoria 3000 Australia

Organizer

PESA VIC/TAS
Phone:
(03) 8199 0317
Email:
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