摘要：Oleic acid-modified titania (OA-TiO2) nanoparticles are synthesized for the application of enhanced oil recovery (EOR) in low-permeability reservoirs. The oleic acid is grafted onto the surface of titania by the esterification reaction under a specific condition. The well-dispersed OA-TiO2 is expected to exhibit an excellent interfacial activity and a strong wettability alteration capability, owing to its amphiphilic features. This work aims to explore the potential of employing OA-TiO2 in EOR and to unveil its mechanisms of displacing oil in porous media. The interfacial properties of OA-TiO2 are systematically investigated by determining its interfacial tension and contact angle. A microfluidic test on a 2.5-D microfluidic model and a series of core floods are carried out to study the oil-displacement efficiency of OA-TiO2 nanofluids. The experimental results demonstrate that oleic acid-modified titania nanoparticles show great potential in not only reducing the injection pressure but also enhancing hydrocarbon recovery in low-permeability reservoirs.
Copyright © 2020 American Chemical Society.

ISSN号：0887-0624

卷、期、页：卷: 34; 期: 5; 页: 5813-5822

发表日期：2020-05-21

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：ENERGY & FUELS

参与作者：游振江

通讯作者：程婷婷,尚丹森

第一作者：杨钰龙,吴海荣,侯吉瑞

论文类型：期刊论文

论文概要：杨钰龙,程婷婷,吴海荣,游振江,尚丹森,侯吉瑞，Enhanced Oil Recovery Using Oleic Acid-Modified Titania Nanofluids: Underlying Mechanisms and Oil-Displacement Performance，ENERGY & FUELS，2020，卷: 34; 期: 5; 页: 5813-5822

论文题目：Enhanced Oil Recovery Using Oleic Acid-Modified Titania Nanofluids: Underlying Mechanisms and Oil-Displacement Performance