摘要
介绍了钻杆回转时扭应力的采集、处理与分析方法,认为扭矩频率是疲劳折断钻杆的主要因素.这种频率的变化与孔深有关.建议钻机的转速应避开钻机固有的扭距频率.
The collection, processing and analysis of the torsional stress data of a revolving drilling rod aredealt with in this paper. It shows that torsional vibration frequency is the main factor for the fatiguebreak of the drilling rod and the variation of this frequency is in relationship with the hole depth.Thus the rotating speed of the drilling rig should be kept away from the intrinsic torisional vibrationfrequency of the drilling rod.
出处
《地质与勘探》
CAS
CSCD
北大核心
1989年第5期58-63,共6页
Geology and Exploration
