摘要
在Warren Root模型基础上 ,引入分形参数df、θ,渗透率压缩系数αf,和裂缝的压缩系数 βf,考虑压力对具有分形特征的渗透率和孔隙度的影响 ,建立了变形双重介质分形油藏不稳定渗流的数学模型 ,由于假设裂缝渗透率及孔隙度是压力和空间距离的函数 ,因而得到的数学模型是非线性的。用预测 校正法求得模型的数值解 。
On the basis of Warren Root model, a mathematical model of unstable seepage flow in deformable, dual porosity reservoirs for the infinite and bounded strata isproposed. Introduced into the model are fractal parameters ( d f and θ ) and deformation coefficients. The model assumes that both fracture porosity and porosityare functions of pressure and spatial distance, and thus it is nonlinear in nature. Numerical solutions to the model are obtained with the predictor corrector method. Pressure transient character and its effect on the parameters are analyzed.
出处
《西南石油学院学报》
CSCD
2002年第4期24-27,共4页
Journal of Southwest Petroleum Institute
基金
"油气藏地质及开发工程"国家重点实验室开放基金项目 (PLN0 115 )
西南石油学院研究生院创新基金项目资助(CXJJ0 10 5
