沙溪庙组致密砂岩开发效果主控因素数值模拟研究

Simulation of the Main Control Factor of the Main Control of Dense Sandstone in Shaximiao Formation

四川盆地沙溪庙组致密砂岩的发育为多期砂体,砂体储层厚度大、烃类品质极佳、含气性好。由于开发工艺的不同,各个沙溪庙组气藏的开发效果差异巨大。因此,为了对该现象及其主控因素进行研究,根据GYS区块实际储层参数,建立了沙溪庙组压裂水平井数值模拟模型,并对储层、岩石力学及工艺水平影响压裂水平井的裂缝参数和EUR进行定量分析。结果表明:该研究对同类致密气藏的开发具有一定的参考价值。

The tight sandstone of Shaximiao Formation in Sichuan Basin is a multi-stage sand body with large res-ervoir thickness,excellent hydrocarbon quality and good gas bearing.Because of the different development technolo-gy,the development effect of each Shaximiao formation gas reservoir is very different.Therefore,in order to study this phenomenon and its main controlling factors,a numerical simulation model of fractured horizontal Wells in Shaximiao Formation was established according to the actual reservoir parameters in GYS block,and the fracture pa-rameters and EUR affecting fractured horizontal Wells by reservoir,rock mechanics and technological level were quantitatively analyzed.The results show that the study has a certain reference value for the development of similar tight gas reservoirs.