Improved Oil Recovery from Carbonate Reservoirs by Tuning Injection Seawater Composition

被引：1
|
作者：
Wu, Jiazhong [1 ]
Liu, Fanghui [2 ]
Yang, Siyu [1 ]
Han, Haishui [1 ]
Chen, Xinglong [1 ]
Yang, Hui [3 ]
机构：
[1] Petro China, State Key Lab Enhanced Oil Recovery, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
[2] SINOPEC Res Inst Petr Engn Co Ltd, Beijing 102206, Peoples R China
[3] Chinese Acad Sci, CAS Key Lab Colloid Interface & Chem Thermodynam, Inst Chem, Beijing 100190, Peoples R China
来源：
ENERGIES | 2022年 / 15卷 / 17期
关键词：
improved oil recovery; ion tuning water; low-salinity effect; carbonated reservoirs water flooding; SALINITY-DEPENDENT ADHESION; MICA SUBSTRATE; SURFACE; BRINE; ASPHALTENE; ADSORPTION; IMPACT; SANDSTONE; BEHAVIOR; PH;
D O I：
10.3390/en15176405
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In order to improve the adaptability of low-salinity waterflooding technology in some areas where freshwater resources are scarce, we aimed at implementing the low-salinity effect (LSE) in carbonate reservoirs through tuning injection seawater composition. LSE of ion tuning water (ITW) was verified by the results of core flooding tests, obtaining a water-free recovery factor of 50.7% and cumulative oil recovery of 77.2%. The micro mechanisms behind it were revealed via direct force-measuring and Zeta parameter (Zeta(p)) measuring. Our results are expected to provide a new LSW strategy via tuning injection seawater composition in the case of carbonate reservoirs.
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页数：11
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