Improved Oil Recovery from Carbonate Reservoirs by Tuning Injection Seawater Composition

Autor: Jiazhong Wu, Fanghui Liu, Siyu Yang, Haishui Han, Xinglong Chen, Hui Yang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Energies, Vol 15, Iss 17, p 6405 (2022)
Druh dokumentu: article
ISSN: 1996-1073
DOI: 10.3390/en15176405
Popis: In order to improve the adaptability of low-salinity waterflooding technology in some areas where freshwater resources are scarce, we aimed at implementing the low-salinity effect (LSE) in carbonate reservoirs through tuning injection seawater composition. LSE of ion tuning water (ITW) was verified by the results of core flooding tests, obtaining a water-free recovery factor of 50.7% and cumulative oil recovery of 77.2%. The micro mechanisms behind it were revealed via direct force-measuring and Zeta parameter (Zetap) measuring. Our results are expected to provide a new LSW strategy via tuning injection seawater composition in the case of carbonate reservoirs.
Databáze: Directory of Open Access Journals
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