J
Jan Vinogradov
Researcher at University of Aberdeen
Publications - 50
Citations - 1940
Jan Vinogradov is an academic researcher from University of Aberdeen. The author has contributed to research in topics: Streaming current & Zeta potential. The author has an hindex of 19, co-authored 45 publications receiving 1502 citations. Previous affiliations of Jan Vinogradov include Imperial College London & Ben-Gurion University of the Negev.
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Zeta potential of artificial and natural calcite in aqueous solution.
TL;DR: Previous measurements of zeta potential on natural and artificial calcite and carbonate are reviewed, a consistent linear relationship between equilibrium pH and equilibrium pCa or pMg irrespective of sample used or solution ionic strength is presented, and apparently identical natural carbonates display differing zeta Potential behaviour.
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Zeta potential in oil-water-carbonate systems and its impact on oil recovery during controlled salinity water-flooding
TL;DR: This work demonstrates for the first time that improved oil recovery during CSW is strongly correlated to changes in zeta potential at both the mineral-water and oil-water interfaces, and suggests that failures using the conventional approach to CSW may have been caused by a positively charged oil- water interface that had not been identified.
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Evidence, mechanisms and improved understanding of controlled salinity waterflooding part 1: Sandstones ☆
TL;DR: In this paper, the pore-to-mineral-surface-scale mechanisms for the low salinity effect (LSE) have been investigated and compared in both clastic and carbonate rock samples and reservoirs.
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Zeta potential of intact natural limestone: Impact of potential-determining ions Ca, Mg and SO4
TL;DR: In this article, the effect of the potential-determining ions (PDI) Ca, Mg and SO4, and the total ionic strength controlled by NaCl concentration, is investigated over the range typical of natural brines.
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Measurement of streaming potential coupling coefficient in sandstones saturated with high salinity NaCl brine
TL;DR: In this article, the authors measured the streaming potential coupling coefficient in intact sandstone samples saturated with NaCl brines at concentrations up to 5.5 molL−1 and found that at low salinity, the coupling coefficient decreases in magnitude, but is still measureable up to the saturated concentration limit.