超深井套管接箍的安全性评价  

Safety evaluation of casing coupling in ultra deep wells

作　　者：陈开宇[1] Chen Kaiyu(Sichuan water conservancy vocational and technical college,SiChuan ChengDu 611231)

机构地区：[1]四川水利职业技术学院电力工程系,四川成都611231

出　　处：《南方农机》2018年第21期246-247,共2页

摘　　要：超深井下套管是一项危险性很高的工作,其主要风险源在于超深井套管串长度和重量大,对各构件的强度和刚度要求高,其中套管接箍是薄弱环节。因此有必要对其进行有限元分析。以克深1井二开套管串为例进行分析,建立合适的单元类型划分网格,并进行加载求解。最后针对求解结果,确定特殊扣套管螺纹使用的安全性,并给出其现场使用的建议。Casing in ultra-deep wells is a very dangerous job.The main risk is that the length and weight of casing string in ultra-deep wells are large,and the strength and stiffness of each component are high.Casing coupling is the weak link.Therefore,it is necessary to carry out finite element analysis.Taking the second casing string of Keshen well No.1 as an example,the appropriate element type is established to divide the grid,and the load solution is carried out.Finally,according to the solution result,the safety of the thread of the special buckle sleeve is determined,and the suggestions for its field use are given.

关 键 词：超深井 下套管 套管螺纹 接箍 

分 类 号：TE931[石油与天然气工程—石油机械设备]