薄层多层压裂的拟三维模型及应用

Application of pseudo 3D model for thin multilayer fracturing

对于低渗复杂的薄层多层油气藏,期望一次性压开所有产层以减少压裂作业的次数。在调研国内外多层压裂裂缝延伸模拟的有关文献的基础上,建立了一套能模拟多产层在一次压裂改造中全部被压开、多条裂缝同时延伸的拟三维数学模型,包括压裂液在各产层的动态流量分配,并进行了实例分析。

For thin multilayer reservoirs with low permeability,it is expected to conduct fracturing in all pay zones at one time to reduce the frequency of fracturing operation.Based on the investigation of related literatures about multilayer fracturing modeling,a pseudo 3D numerical model has been established to model fracturing of all pay zones at one time and many fractures elongating at the same time,including the dynamic distribution of fracturing fluid in each zone.A case analysis is given.