dc.contributor.author | Chen, Hailong | |
dc.contributor.author | Li, Zhaomin | |
dc.contributor.author | Wang, Fei | |
dc.contributor.author | Li, Aixin | |
dc.contributor.author | Wanambwa, Silagi | |
dc.contributor.author | Lu, Teng | |
dc.date.accessioned | 2021-04-03T14:36:20Z | |
dc.date.available | 2021-04-03T14:36:20Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Chen, H., Li, Z., Wang, F., Li, A., Wanambwa, S., & Lu, T. (2020). Experimental study on the enhanced oil recovery by in situ foam formulation. Energy Science & Engineering, 8(4), 1092-1103. | en_US |
dc.identifier.uri | http://ir.must.ac.ug/xmlui/handle/123456789/602 | |
dc.description.abstract | In situ CO2 foams (ISCF) are studied systematically by combining in situ CO2 gas reactants
(carbonate anhydrous, hydrochloric acid) and bio-based surfactant. Sandpack
flooding experiments at 60°C along with PVT experiments were carried out to analyze
the oil displacement mechanisms. The results showed that ISCF could increase
oil recovery from heterogeneous multilayer formation of permeability ratio over 6,
and displacement efficiency increased with the injection volume increased before the
injection of 1 PV. The incremental oil recovery by ISCF was much greater than that
of conventional foam or in situ CO2 (ISC) without foam under the same injection
conditions. The generated CO2 foam could reduce the interfacial tension between
displacement phase and displaced phase effectively which contributed to the great
increase in capillary number. The CO2 dissolution greatly reduced the viscosity of
crude oil, and the highest viscosity reduction rate at 60°C could be as high as 98%.
The Ca2+ concentration of produced liquids analysis revealed the ISCF could distribute
intelligently the acid in heterogeneous formations. | en_US |
dc.description.sponsorship | National Natural Science Foundation of China, Grant/Award
Natural Science Foundation of Shandong Province, China, Grant/Award
National Science and Technology Major Project of China, Grant/ward
Fundamental Research Funds for the Central Universities, Grant/Award | en_US |
dc.language.iso | en | en_US |
dc.publisher | Energy Science & Engineering | en_US |
dc.subject | in situ foam | en_US |
dc.subject | intelligent acidification | en_US |
dc.subject | interfacial tension reduction | en_US |
dc.subject | viscosity reduction | en_US |
dc.title | Experimental study on the enhanced oil recovery by in situ foam formulation | en_US |
dc.title.alternative | Chen, H., Li, Z., Wang, F., Li, A., Wanambwa, S., & Lu, T. (2020). Experimental study on the enhanced oil recovery by in situ foam formulation. Energy Science & Engineering, 8(4), 1092-1103. | en_US |
dc.type | Article | en_US |