Considering the pore deformation and permeability changes during dilation-recompaction in cyclic steam stimulation (CSS), an existing geomechanical model is improved and thermo-mechanically coupled with the flow equations to form a coupled flow-geomechanical model. The impacts of dilation-recompaction parameters can be quantified through sensitivity analysis and uncertainty assessment utilizing the synergy between Latin hypercube designs and response surface methodology. The improved coupled flow-geomechanical model allows a more reasonable history-matching of steam injection pressure and volume and oil/water production volume. In both the linear and quadratic models, the rise in recompaction pressure has the most significant effect on the rise in the volumes of steam injection and water production, both rock compressibility and recompaction pressure are positively correlated with steam injectivity and oil/water production, and the dilation pressure is negatively correlated with steam injectivity and oil/water production. In the linear model, dilation pressure has the most significant negative impact on the cumulative oil production, and compressibility and recompaction pressure are positively correlated with oil production. In the quadratic model, the rise in recompaction pressure has the most significant effect on the rise in the cumulative volumes of oil/water production and steam injection. The interactions between the dilation/recompaction pressures and spongy-rock compressibility negatively affect the cumulative volumes of oil/water production and steam injection.

考虑循环蒸汽吞吐（CSS）膨胀-再压实过程中孔隙变形和渗透率的变化，对现有地质力学模型进行改进，并将其与流动方程进行热力耦合，形成流动-地质力学耦合模型。可以利用拉丁超立方设计和响应面方法之间的协同作用，通过敏感性分析和不确定性评估来量化膨胀-再压缩参数的影响。改进的流动-地质力学耦合模型可以更合理地对注汽压力和注汽量以及油/水产量进行历史匹配。在线性和二次模型中，再压实压力的上升对注蒸汽量和产水量的上升影响最为显着，岩石压缩性和再压实压力均与注汽量和油水产量呈正相关，且膨胀压力与蒸汽注入量和油/水产量呈负相关。线性模型中，膨胀压力对累计产油量的负面影响最为显着，压缩性和再压实压力与产油量呈正相关。在二次模型中，再压实压力的上升对累计油水产量和蒸汽注入量的上升影响最为显着。膨胀/再压实压力和海绵岩石压缩性之间的相互作用会对油/水生产和蒸汽注入的累积量产生负面影响。