Relative Permeability and Flow Intermittency Measurements Using X-Ray Micro-tomography in a Complex Microporous Carbonate

Dataset title Relative Permeability and Flow Intermittency Measurements Using X-Ray Micro-tomography in a Complex Microporous Carbonate
Dataset creators Ying Gao, Imperial College London
Ali Q. Raeini, Imperial College London
Martin J. Blunt, Imperial College London
Branko Bijeljic, Imperial College London
Dataset theme Geoscientific Information
Dataset abstract

We imaged the steady-state flow of brine and decane at different fractional flows during dual injection in a micro-porous limestone using X-ray micro-tomography. We applied differential imaging on Estaillades carbonate to (a) distinguish micro-porous regions from macro-pores, and (b) determine fluid phase pore occupancy and relative permeability at a capillary number, Ca = 7.3×10-6. The sample porosity was approximately 28 %, with 7% in macro-pores and 21% in pores that could not be directly resolved (micro-porosity). We find that, in addition to brine and decane, a fraction of the macroscopic pore space contains an intermittent phase, which is occupied either by brine or oil during the hour-long scan time. Furthermore, fluid occupancy in micro-porosity was classified into three sub-phases: micro-pore space with oil, micro-pore space with brine, and micro pores partially filled with oil and brine.

Dataset content dates 9th June 2018 – 18th June 2018
Dataset spatial coverage Not applicable
Dataset supply format .raw
Dataset language English-United Kingdom
Dataset discovery metadata record Discovery Link to the dataset's BGS Discovery Metadata record
Dataset publisher British Geological Survey
Dataset publication date 1st February 2019
Dataset digital object identifier(DOI) 10.5285/f899eb2f-37a4-4dec-9b59-432f11250894
Dataset citation text Gao, Y., Raeini, A.Q., Blunt, M.J. and Bijeljic, B. (2019): Relative Permeability and Flow Intermittency Measurements Using X-Ray Micro-tomography in a Complex Microporous Carbonate. British Geological Survey. (dataset). http://dx.doi.org/10.5285/f899eb2f-37a4-4dec-9b59-432f11250894
Constraints and terms of use This data set is delivered under the terms of the Open Government Licence, subject to the following acknowledgement accompanying any reproduced materials: "Imperial College London gratefully acknowledge permission to publish and funding from the Qatar Carbonates and Carbon Storage Research Centre (QCCSRC), provided jointly by Qatar Petroleum, Shell, and Qatar Science & Technology Park. Qatar Petroleum remain copyright owner."
Access the dataset https://www.bgs.ac.uk/services/ngdc/accessions/index.html#item125555