Open AccessThe CO2 foam stabilized with the mixture of CO2-soluble surfactants
Author(s) -
Xuan Zhang,
Tao Zhang,
Jijiang Ge,
Guicai Zhang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/384/1/012081
Subject(s) - viscosity , chemical engineering , materials science , pulmonary surfactant , chemistry , composite material , engineering
The CO 2 -soluble surfactants have been studied extensively for their ability to reduce gas mobility and provide the essential mobility control in CO 2 -EOR in recent years. In this paper, the synergism of the mixture was investigated. It was conducted that the cloud pressure points of surfactants mixture were located in the middle of single component. However, the synergism of viscosity was positive absolutely, where the apparent foam viscosity of mixture in sand-pack could increase 22.3% and 8.5% separately, comparing with C 12-14 NEO 2 and C 16-18 NEO 5 . Anyway, adding the C 16-18 NEO x to C 12-14 NEO 2 makes the CO 2 foam more stable and viscous and CO 2 mobility in reservoir was reduced efficiently.