A Study of Relationship Between Oil-Water Interfacial Dilational Rheology and Oil Recovery of Alkaline Flooding

In order to find out the influence of dilational rheology on chemical flooding systems, the dilational rheology of Zhuangxi crude oil/NaOH solutions interface was investigated by DSA100 interfacial dilatational rheometer (KRÜSS, Germany). The results show that the alkaline system, which can enhance...

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Bibliographic Details
Published inTenside Surfactants Detergents Vol. 52; no. 4; pp. 294 - 300
Main Authors Wang, Yang, Ge, Jijiang, Zheng, Yufei, Jiang, Ping, Zhang, Guicai
Format Journal Article
LanguageEnglish
Published De Gruyter 15.07.2015
Subjects
Alkalifluten
alkaline flooding
Erdölgewinnung
Grenzflächenausdehnungsrheologie
Interfacial dilational rheology
microscopic displacement
mikroskopische Verdrängung
oil recovery
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Summary:In order to find out the influence of dilational rheology on chemical flooding systems, the dilational rheology of Zhuangxi crude oil/NaOH solutions interface was investigated by DSA100 interfacial dilatational rheometer (KRÜSS, Germany). The results show that the alkaline system, which can enhance oil recovery, mainly depends on its interfacial dilational rheology, rather than interfacial tension. The greater the interfacial dilational elasticity, the higher the oil recovery is. The greater the interfacial dilational viscosity, the lower the oil recovery is. The conclusion is consistent with the change of displacement pressure in the macro displacement experiment and the change of sweep efficiency in the microscopic displacement experiment.
ISSN:0932-3414
2195-8564
DOI:10.3139/113.110378