辽宁石油化工大学学报2017，Vol.37Issue(3)：35-38,50,5.DOI:10.3969/j.issn.1672-6952.2017.03.008
裂缝性特低渗油藏渗吸效果影响因素实验研究
Experimented Study on the Influence Factors of Spontaneous Imbibition in Ultra Low Permeability Fractured Reservoir
刘长利 1刘欣 2张莉娜 1陈贞龙1
作者信息
- 1. 中石化华东油气分公司 勘探开发研究院,江苏 南京 210011
- 2. 中石化华东油气分公司 石油工程技术研究院,江苏 南京 210031
- 折叠
摘要
Abstract
Water flooding development has become the only way for the ultra low permeability fractured reservoir development.However, due to the problems of reservoir micro fracture development, serious heterogeneity and critical water, resulting the water flooding recovery was low.Spontaneous imbibition oil production is an important way of oil production in this kind of reservoir, on the basis of the use of indoor experiment, the salinity of injected water, core permeability, oil saturation, surfactant, oil viscosity and temperature in a low permeability fractured reservoir were studied systematically.Experimental results show that when the environment formation water salinity is less than the mainland core layer water salinity, or joining a surface active agent could significantly improve spontaneous imbibition effect.as the permeability and oil saturation increased and the crude oil viscosity decreased;capillary imbibition became stronger and the ultimate imbibition recovery is greater;the increase of temperature can increase the initial imbibition rate, but the ultimate imbibition recovery is basically the same, the temperature is not the direct acting factors about imbibition effects in ultra low permeability fractured reservoir.关键词
特低渗裂缝性油藏/渗吸/采收率/影响因素Key words
Ultra low permeability fractured reservoir/Spontaneous imbibition/Recovery ratio/Influencing factors分类
能源科技引用本文复制引用
刘长利,刘欣,张莉娜,陈贞龙..裂缝性特低渗油藏渗吸效果影响因素实验研究[J].辽宁石油化工大学学报,2017,37(3):35-38,50,5.
