关于圆螺纹油套管API最佳上扣扭矩合理性的探讨  

Discussion on Rationality of Optimum Makeup Torque of API Round Thread Tubing and Casting

作　　者：王治国[1] 刘甫清[1] 唐豪清[1] 

机构地区：[1]宝钢股份公司钢管分公司,上海201900

出　　处：《宝钢技术》2001年第2期60-64,共5页Baosteel Technology

摘　　要：在圆螺纹油套管的API设计思想框架内 ,讨论了如何确定最佳上扣扭矩。根据API圆螺纹油套管的设计思想 ,最佳上紧是上扣后正好没有外露扣。然而APIRP 5C1给出的最佳上扣扭矩并不完全对应于这一位置 ,API最佳上扣扭矩与实际需要的上扣扭矩至少有± 2 5%的误差范围。为了能够发挥API圆螺纹油套管的最佳使用性能 ,应该根据油套管的实物情况确定对应于最佳上紧位置的实需最佳上扣扭矩。Based on the design framework of API round thread tubing and casing,the determination of optimum makeup torque is discussed in the article.The explanation for optimum makeup following from the design of API round thread tubing and casing is that no thread could be exposed.But the margin error between API optimum makeup and practical makeup is more than ±25%,which can not be corresponding to the place of optimum makeup of API RP 5C1.In order to bring the optimum service performance of API round thread tubing and casing into play,the optimum makeup torque corresponding with the position of optimum makeup should be determined in the light of actual situation.

关 键 词：API标准 圆螺纹油套管 连接强度 上扣扭矩 最佳上紧 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]