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利用单相流体模型与地质力学充分结合采评价压力、流体、储层性质等综合作用对压力敏感性油藏的影响,油藏流体的生产和地质力学的耦合作用对油藏属性及应力状况的影响较显著。利用耦合数值模型,可对利用简化关系所得的结果进行评价,利用数值分析定量地对油藏压力敏感性对试井的影响进行分析。在研究中所涉及的关键变量及评价压力敏感性油藏的重要参数包括渗透率、孔隙度、油藏岩石的本构特征:后生作用、沉降条件。研究的数值结果表明:对于分析高度压力敏感性油藏,地质力学和流体模型的充分耦合是十分必要的。
Using the combination of single-phase fluid model and geomechanics, the effects of pressure, fluid and reservoir properties on pressure-sensitive reservoirs, coupling between reservoir fluid production and geomechanics on reservoir properties and stress conditions More significant impact. Using the coupled numerical model, the results obtained from simplified relationships can be evaluated, and numerical analysis can be used to quantitatively analyze the effect of reservoir pressure sensitivity on well testing. Key variables involved in the study and important parameters for evaluating pressure-sensitive reservoirs include permeability, porosity, constitutive features of reservoir rocks: epigenetic effects, and subsidence conditions. The numerical results show that it is necessary to fully couple geomechanical and fluid models for the analysis of highly pressure-sensitive reservoirs.