期刊
12TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES, GHGT-12
卷 63, 期 -, 页码 7663-7676出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2014.11.800
关键词
Low salinity water injection (LSWI); combined effect of LSWI and CO2; wettability alteration by LSWI; geochemical modeling; LSWI and CO2 in carbonates
This paper uses geochemical modeling to investigate the combined effect of low salinity water injection (LSWI) and CO2 on carbonate oil reservoirs. The geochemical modeling of recently published corefloods was performed using the PHREEQC simulator. Geochemical analysis show that the change in surface charge of carbonates by varying pH is more pronounced using LSWI only than is the combined effect of LSWI and CO2 injection. The combined effect of LSWI and CO2 is most prominent on carbonates with high dolomite composition, whereas carbonates with high anhydrite composition are most affected by LSWI only. (C) 2014 The Authors. Published by Elsevier Ltd.
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