摘要
针对南海西部油田某高温低渗储层,评价含氟润湿反转剂FZ-01。通过表面张力测定、润湿反转能力测定及岩心流动实验测定来观察反转剂的润湿反转性能和解水锁能力。实验研究表明,添加FZ-01可使水溶液表面张力降低至19.89 mN/m;FZ-01可将油水界面张力降低至10^(-2)m N/m数量级;FZ-01能使岩心由水润湿或油润湿变为中性润湿;受水锁伤害的岩心经FZ-01处理后,渗透率恢复率达111.4%。
A fluoride wettability - reversal agent （FZ -01 ） which can be used in the high - temperature and low - permeability reservoir was researched in this paper. Tests including oil - water interfacial tension, wettability rever-sal, core displacement experiment proved the wettability - reversal ability and water - block removing ability of FZ -01 are effective. Experimental results showed that the FZ -01 had excellent interfacial activity and could reduce the gas - water surface tension to 19. 89mN/m; and the oil - water interfacial tension can be reduced to 10 2mN/m orders of magnitude. The FZ - 01 could also change the core surface to neutral - wetting and recover the damaged -core permeability, with the recovery rate of 111.4%.
出处
《重庆科技学院学报（自然科学版）》
CAS
2017年第2期61-63,共3页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
国家科技重大专项"南海西部海域低渗油藏勘探开发关键技术"(2016ZX05024-006)
关键词
表面张力
界面张力
润湿反转
防水锁能力
surface tension
interfacial activity
wettability reversal
water blocking prevention
