储层孔隙介质气体吸附理论模型研究探讨

详细分析了化工领域内广泛应用的单组分和多组分气体吸附模型的特征、演变历程,以及储层孔隙介质-气体吸附体系的特点,提出了储层孔隙介质气体吸附模型研究的基本思路和技术路线,储层孔隙介质气体吸附模型研究的基础是储层孔隙介质气体吸附等温线的实验测试,在此基础上,还需进一步完成现有单/多组份气体吸附模型的储层孔隙介质气体吸附适用性评价,才能建立起完全包含储层孔隙介质吸附体系的所有特征的新模型。

STUDY ON ISOTHERMAL MODEL OF PARAFFINIC HU DROCARBON ADSORPTION IN UNDERGROUND POROUS MEDIA

The study on isothermal models of paraffinic hydrocarbon adsorption in underground porous media,which is difficult but of practical and theoretical significance,is the foundation of phase behavior laws,fluid flow and reserves calculation in real gas con-densate reservoir.The content presented in this paper is one part of the subject, which has few research literatures published.This paper consists of three parts.In the first part,a series of single component and multi-component gas adsorption isother-mal models commonly used in chemical engineering practice are described,which are quite complete.These conventional models range from homogeneous to heterogeneous adsorption system,from ideal condition to real reservoir condition.In the secondpart,the properties of porous media in real gas reservoirs,which is of stronger heterogeneity than that in chemical engineering field,have been studied.And in the third part,a new idea to de-velop gas adsorption isothermal models in a real gas reservoir was put forward on the basis of the experimental data of hydro-carbon adsorption from core in order to describe accurately theadsorption of hydrocarbons in real reservoir porous media.