Surface chemistry of oil recovery from fractured, oil-wet, carbonate formations

被引：333

作者：

Hirasaki, G ^{[1
]}

Zhang, DL ^{[1
]}

机构：

[1] Rice Univ, Chem Engn Fac, Houston, TX 77251 USA

来源：

SPE JOURNAL | 2004年 / 9卷 / 02期

关键词：

D O I：

10.2118/88365-PA

中图分类号：

TE [石油、天然气工业];

学科分类号：

0820 ;

摘要：

Oil recovery by waterflooding in fractured formations is often dependent on spontaneous imbibition. However, spontaneous imbibition is often insignificant in oil-wet, carbonate rocks. Sodium carbonate and anionic surfactant solutions are evaluated for enhancing oil recovery by spontaneous imbibition from oil-wet carbonate rocks. Crude-oil samples must be free of surface-active contaminants to be representative of the reservoir. Calcite, which is normally positively charged, can be made negative with sodium carbonate. The ease of wettability alteration is a function of the aging time and temperature and the surfactant formulation.

引用

页码：151 / 162

页数：12

共 72 条

[1] Thermally induced wettability alteration to improve oil recovery in fractured reservoirs [J].