双孔介质油藏多层合采油井产能分析  

Productivity analysis on commingled production wells in layered dual porosity reservoirs

作　　者：郭晶晶[1] 张烈辉[1] 王海涛[1] 孟雅[2] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,成都610500 [2]西南石油大学石油工程学院,成都610500

出　　处：《水动力学研究与进展（A辑）》2011年第6期704-712,共9页Chinese Journal of Hydrodynamics

基　　金：国家973课题(2011CB201005);教育部博士点专项基金(20105121110006)资助

摘　　要：此文在分析多层双孔介质油藏渗流规律的基础上,考虑各层具有不同的物性参数和原始地层压力,建立了考虑井储和表皮影响的无窜流多层双孔介质油藏渗流模型。通过Laplace变换,求解得到了拉氏空间内的井底压力和各层产量的解析解,并根据数值反演方法编程绘制了各层产量的理论变化曲线,分析了分层产量变化的规律及影响因素。此文的研究结果可以指导现场的油井合理配产。Based on the analysis of flowing mechanism in the layered dual porosity reservoirs,a mathematical model was established considering wellbore storage and skin effect,assuming that the cross flow does not exist among the dual porosity reservoir with infinite outer boundary,and the initial pressure of each layer is or is not the same.The analytical solutions of downhole pressure and layered production were obtained by using Laplace transformation.The theoretical curves of layered production were plotted by means of numerical inversion and computer programming.The characteristics and the influencing factors of the layered production were investigated.The study results are helpful to the proper production allocation of oil wells.

关 键 词：多层合采 双孔介质 分层产量 数学模型 

分 类 号：TE312[石油与天然气工程—油气田开发工程]