曹维政,肖鲁川,曹维福,许云龙
CAO Wei-zheng,XIAO Lu-chuan,CAO Wei-fu,XU Yun-long(Exploratisn and Development Research Institute of Daqing Oilfield Company Ltd.

• 1:大庆油田有限责任公司勘探开发研究院
• 2:大庆油田有限责任公司勘探开发研究院
• 3:大庆油田有限责任公司勘探开发研究院
• 4:大庆油田有限责任公司勘探开发研究院 黑龙江大庆163712

摘要(Abstract)：

以榆树林地区特低渗透岩样油水两相渗流实验为实例,对特低渗透岩样在不同含水饱和度下的拟启动压力进行了研究,通过对实验数据进行的理论分析,得到了描述油水两相非达西渗流的经验关系式。对稳态法测定的特低渗透岩样油水两相相对渗透率曲线进行研究的结果是:当空气渗透率小于2×10-3μm2时,油水的相对渗透率就依赖于油水渗流速度,对油相影响较大,流速越低,油相相对渗透率也越低,油水两相同时渗流时的拟启动压力比单相时要大很多。
The oil-water phases seepage experiment on the extralow permeability samples produced from Yushulin Oil Field were taken for example to illustrate the researches of pseudo-kickoff pressure of extra-low permeability samples under different water saturations.Empirical relationship defining the oil-water non-Darcy flow was achieved by theoretically analyzing the experiment data.The analysis result of relative permeability curve of oil-water phases in extra-low permeability samples measured by stable state method shows that when the air permeability is less than 2×10-3μm2,the relative permeability of oil and water with inclining dependence on oil-water seepage velocity,has larger influences on oil phase,the lower velocity,the lower oil phase relative permeability,and the pseudo-kickoff pressure of oil-water phases simultaneous seepage is much larger than that of single phase.

关键词(KeyWords)： 特低渗透;油水两相;非达西;渗流
extra-low permeability;oil-water phase;non-Darcy; seepage

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 曹维政,肖鲁川,曹维福,许云龙
CAO Wei-zheng,XIAO Lu-chuan,CAO Wei-fu,XU Yun-long(Exploratisn and Development Research Institute of Daqing Oilfield Company Ltd.

参考文献(References)：

• [1]姚约东,葛家理.低渗透油藏不稳定渗流规律的研究[J].石油大学学报(自然科学版),2003,27(2):55-58.
• [2]李劲峰.贾敏效应对低渗透油层有不可忽视的影响[J].石油勘探与开发,1999,26(2):93-94.
• [3]宋付权,刘慈群.低渗油藏的两相相对渗透率计算方法[J].西安石油学院学报,2000,15(1):9-13.
• [4]张光明,廖锐全.特低渗透油藏流体渗流特征试验研究[J].江汉石油学院学报,2004,26(1):88-89.
• [5]肖鲁川,郑岩,甄力.特低渗透储层非达西渗流特征研究[J].大庆石油地质与开发,2000,19(5):27-28.
• [6]兰玉波,肖鲁川,赵玉珍.描述特低渗透油层两相渗流特征的改进方法[J].大庆石油地质与开发,2002,21(3):50-52.