摘要
通过室内实验,研究了高温泡沫防窜体系的起泡和稳泡性能,考察了高温泡沫体系的耐温性能、耐盐性能、耐酸性能以及高温泡沫体系的防窜性能。实验结果表明,高温下,时间越长,起泡剂降解越多;NaCl对泡沫性能的影响较小,二价阳离子在小于1000 mg/L时,稳定性才会明显下降;当原油含量小于15%,泡沫的性能较稳定。封堵性实验结果表明,泡沫防窜体系对高渗透储层的封堵能力较好,而对低渗透储层封堵能力较弱,表现出良好的选择性封堵能力。
In this paper,the performance of anti-channeling system of high-temperature foam was studied,and the temperature resistance,salt resistance,acid resistance and anti-channeling performance of high-temperature foam system were investigated respectively.The experimental results showed that in high temperature environment,the longer the time,the more the foaming agent degrades.The effect of NaCl on on foam properties,the stability of the divalent cation decreased significantly when the solution was less than 1000 mg/L.When the content of crude oil is less than 15%,the performance of foam is stable.The bubble system has a great ability to seal high permeability reservoirs and a relatively weak ability to seal low permeability reservoirs,and it has a certain selective plugging ability.
作者
刘旭超
张宁
任树亮
张强
刘长龙
吴晓燕
Liu Xuchao;Zhang Ning;Ren Shuliang;Zhang Qiang;Liu Changlong;Wu Xiaoyan(Tianjin Branch of CNOOC Ltd.,Tianjin 300451;CNOOC EnerTech-Drilling&Production Co.,Tianjin 300452,China)
出处
《广东化工》
CAS
2020年第11期59-61,共3页
Guangdong Chemical Industry
基金
“十三五”国家科技重大专项“渤海油田高效开发示范工程”资助,项目编号:2016ZX05058。
关键词
高温泡沫体系
起泡性能
封堵性能
防气窜
high temperature foam system
foaming property
plugging performance
anti-fluid-channeling
