根据现场完井工艺和研究完井管柱受力情况 ,文中导出了一种简易实用的完井管柱上提、下放的载荷计算模型。进一步提出开发仿真器的基本思路和介绍具体的数值计算处理办法。实例计算表明 ,理论计算结果与现场实测结果基本相符 ,从而验证了计算模型的准确性。无疑 ,此项研究用于现场预测大位移井完井管柱摩阻力具有重要的实用价值 According to the field completion technology and the study of the stress of the completion string, a simple and practical load calculation model for lifting and lowering of the completion string is derived. Further proposed the basic idea of ​​developing the simulator and introduces the specific numerical calculation processing method. The example calculation shows that the theoretical calculation results are in good agreement with the field measurements, thus verifying the accuracy of the calculation model. Undoubtedly, this study is of great practical value for on-the-spot prediction of the frictional resistance of a well completion string in a large displacement well