钻具振动分析方法与应用

钻具振动检测与分析技术,就是在旋转钻井过程中,利用钻具产生的振动行为来传输井下钻具情况和岩性信息。钻具振动的幅频变化实时反映了钻井作业参数的变化,据此及时调整钻井作业参数,可优化钻井过程、提高钻井效率;地层岩性的变化也会反应到钻具的振动变化中,根据钻具的振动变化现场分析钻达地层的岩性是钻井地质分析的一个新的技术手段。

Analyzing Method of Drilling Tool Vibration and Its Application

Detection and analysis technique of drilling tool vibration is to deliver the information of downhole drilling tools and lithology by making use of the vibration of drilling tools in the course of rotary drilling. Drilling operation parameters whose changes are reflected by the amplitude frequency of drilling tools' vibration timely can be adjusted to optimize the course of drilling and improve drilling efficiency.The changes of formation lithology are also reflected by the vibration change of drilling tools.Analyzing lithology of the formation which is reached by drilling tools according to the vibration change is a new technique of drilling geology analysis.