• 827 Citations
20012019

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Personal profile

Research Interests:

My research focuses on self-potential (SP) measurements applied to enhanced oil recovery in sandstone and carbonate reservoirs, supercritical CO2 geo-sequestration, contaminant flow in shallow fresh water aquifers and subsurface sustainable energy. The research involves the cutting edge experimental methods as well as theoretical and numerical modelling. SP arises in porous media saturated with electrolytes and other NAPL (non-aqueous liquid phase) in response to pressure, concentration or temperature gradients.

SP measurements and interpreted from them zeta potential improve the understanding of the mechanisms that control improved oil recovery during controlled salinity waterflooding in sandstones and carbonates. The method complemented by other petrophysical properties has demonstrated its potential to i) predict the crude oil/brine/rock (COBR) composition for which oil recovery is maximized and/or ii) be used as part of experimental or modelling techniques that allow the optimal composition of injected brine to be predicted for a given reservoir.

Other applications of SP measurements include:

  1. Monitoring of i) subsurface flow during hydrocarbon production, ii) saline intrusion into freshwater aquifers, iii) contaminant transport, iv) CO2 geo-sequestration, v) geo-thermal flows;
  2. Characterisation of rock wettability, potentially downhole;
  3. Harvesting sustainable subsurface electrical energy.

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Research Output

Open Access
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  • Characterizing the Self‐Potential Response to Concentration Gradients in Heterogeneous Subsurface Environments

    MacAllister, D. J., Graham, M. T., Vinogradov, J., Butler, A. P. & Jackson, M. D., Aug 2019, In : Journal of Geophysical Research: Solid Earth. 1248, 8, p. 7918-7933 16 p.

    Research output: Contribution to journalArticle

    Open Access
    File
  • Open Access
    File
  • Experimental Investigation of Potential of Combined Controlled Salinity and Bio-Surfactant CSBS in Enhanced Oil Recovery EOR Processes

    Udoh, T., Akanji, L. & Vinogradov, J., 1 Jan 2018, Society of Petroleum Engineers - SPE Nigeria Annual International Conference and Exhibition 2018, NAIC 2018. Society of Petroleum Engineers, 22 p.

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

  • 4 Citations (Scopus)

    Measurements of Zeta Potential in Intact Carbonate Samples with Application to Controlled Salinity Waterflooding

    Jackson, M. D., Li, S., Al Mahrouqi, D., Roudhan, A. A. & Vinogradov, J., 11 Jun 2018.

    Research output: Contribution to conferencePaper