根据水膜稳定性研究储层润湿性

被引:7
作者
石京平 [1 ]
赵国忠 [1 ]
杨清彦 [1 ]
赵波 [2 ]
贺承祖 [2 ]
苏占云 [2 ]
张晟 [2 ]
机构
[1] 中国石油天然气股份有限公司大庆油田有限责任公司勘探开发研究院
[2] 新疆科力新技术发展有限公司
关键词
水膜; 分离压力; DLVO理论; 润湿性; 储层;
D O I
暂无
中图分类号
P618.13 [石油、天然气];
学科分类号
0709 ; 081803 ;
摘要
鉴于常规储层润湿性研究方法在低渗或特低渗透储层中应用的局限性,提出了根据储层表面水膜稳定性来研究储层润湿性的方法。根据原油、地层水和成岩矿物的物性参数、矿物表面曲率以及毛管压力,用DLVO理论和推广的Young-Laplace公式可以计算岩石表面水膜的分离压力,其大小表征了岩石表面水膜的稳定性,以此判定储层的润湿性。应用该方法测定了加拿大高沥青质含量的Athabasca储层和大庆外围低渗透储层的润湿性,均为亲水润湿性,与储层实际相一致,为在分子水平上研究储层岩石的均质和各种复杂的非均质润湿性开辟了一条新的途径。
引用
收藏
页码:311 / 314+320 +320
页数:5
相关论文
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