This paper analyzes the factors which affect the quality of casingrunning during casingrunning operation.
分析在下套管作业中，影响其作业质量的因素。
2
Well completion technique is key to successfully drill extended reach well a nd casingrunning is one of difficulty.
大位移井完井技术是关系到大位移井成功与否的关键，而套管的顺利下入是该技术的难点之一。
3
It connects with threads on both ends of pipe body, which allows a smaller casing O. D. and increases annular gap to facility casingrunning in and improve cementing quality.