With adoption of high pressure water injection, the casing damage will become more and more serious with the developing time. From the process of oilfield production, it can be concluded that casing damage is closely related to seepage field changes. From the types of mechanical deformation, casing damage can be categorized into three groups: extrusion failure, tensile failure and shear failure, which are all induced by seepage. Based on fluid-stress coupling theory, the mechanism of three types of casing damage is analyzed, and also the corresponding conceptual models are built separately. Fi...
