A critical review of low salinity water flooding: Mechanism, laboratory and field application

被引:234
作者
Katende, Allan [1 ,2 ]
Sagala, Farad [3 ]
机构
[1] MUST, Fac Appl Sci & Technol, Dept Energy Minerals & Petr Engn, Kihumuro Campus,7 Km Mbarara Kasese Rd,POB 1410, Mbarara, Uganda
[2] Norwegian Univ Sci & Technol NTNU, Dept Geosci & Petr, Sem Saelands Veg 1, N-7491 Trondheim, Norway
[3] UC, Dept Chem & Petr Engn, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada
关键词
Low-salinity water flooding; Enhanced oil recovery; Cation exchange capacity; Wettability; Multicomponent ionic exchange; Osmosis; Emulsification; IMPROVED OIL-RECOVERY; CHEMICAL-TRACER TESTS; WETTABILITY ALTERATION; FINES MIGRATION; DOUBLE-LAYER; SPONTANEOUS IMBIBITION; INTERFACIAL-TENSION; BRINE COMPOSITION; PORE-SCALE; CRUDE-OIL;
D O I
10.1016/j.molliq.2019.01.037
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Low-salinity water flooding (LSW) is a promising new technique for enhancing oil recovery (EOR) in both sandstone and carbonate reservoirs. The potential of LSW has drawn the attention of the oil industry in the past decade. Along with the few successful field applications of LSW, various studies in this field in recent years have been conducted mainly at the lab scale. The main objective of this critical review was to investigate the potential of this EOR technique in improving oil recovery and the mechanism under which it operates. As a result, various mechanisms have been proposed. However, no consensus on the dominant mechanism(s) in neither sandstones nor carbonate reservoirs has been reported, and the oil industry is continuing to discover the leading effects. Herein, we provide the chronicle of LSW, analysis of the proposed mechanisms of enhancing oil recovery using LSW in recent findings, some laboratory observations, and finally, some successful field applications. From this review, despite the promising potential justified by both laboratory studies and field applications, there exists a large number of unsuccessful field case studies. LSW is viewed as an immature EOR technique with many ambiguities because definitive conclusions about which mechanism(s) is responsible for improving oil recovery remains elusive and a bewilderment to the oil industry. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码:627 / 649
页数:23
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