油水井套管损坏是由多种因素共同作用的结果。现在开发静主要为定向井和水平井,由于井眼曲率的变化,在下入套管过程中容易增加套管弯曲变形的几率,使套管发生偏磨、破损。本文提出了预防套管损坏需从钻井源头抓起,做好钻井设计,分析了井眼轨迹对套管损坏的影响,为预防套管损坏,延长油井寿命奠定良好的基础。 Oil well casing damage is a result of a combination of multiple factors. Now the development of static mainly for directional wells and horizontal wells, due to changes in the curvature of the wellbore, the casing in the next easy to increase the probability of bending deformation casing, the casing partial eccentric wear and tear. This paper puts forward that the prevention of casing damage needs to be grabbed from the drilling source, well drilling design, and the influence of well trajectory on casing damage is analyzed, which lays a good foundation for preventing casing damage and prolonging the life of the well.