转向酸化布酸模型的求解研究

Research on the Solution of Turning to Acidizing Cloth Acid Model

为了更好地模拟酸液转向过程,将酸液在垂直井筒中的流动和地层中的流动视为一个相互作用的整体,建立地层与井筒相互耦合的酸液置放模型。模型主要包括井筒流动模型、不稳定储层流动模型、液体界面移动模型、酸蚀蚓孔增长模型、蚓孔内对流扩散模型等,并介绍了其求解方法。

In order to better simulate the acid diversion process,the flow of acid in the vertical wellbore and the flow in the formation should be regarded as one The interaction of the whole,the establishment of a model of acid placement coupled with the formation and the wellbore. The model mainly includes the flow model,unstable reservoir flow model,liquid interface movement model,acid-etched wormhole model,convective expansion in wormhole Scattered models. this paper studies the solution method.