石油钻井中钻具磨损减薄对拉伸强度影响规律的研究  

RESEARCH ON INFLUENCE LAWS OF DRILL TOOL WEAR ON TENSILE STRENGTH

作　　者：贾建贞[1] 

机构地区：[1]中原油田钻井管具工程处

出　　处：《钻采工艺》2010年第3期88-89,98,共3页Drilling & Production Technology

摘　　要：在石油天然气钻井过程中,钻具经常会出现磨损减薄的现象,从而影响了钻具的承载能力;拉伸载荷是钻具的主要承载方式之一,是钻具安全的重要评判指标。通过对钻具模型的简化,确定磨损钻具的拉伸强度以及在不同井深的受力状态,得出了钻具磨损程度与安全井深的关系。During drilling,the phenomenon of drilling tool wear is often occurred,thereby,the bearing capacity of drill tool is affected.The tensile load is main loadbearing mode of drill tool,is important judgement index of drill tool safety.Based on the simplifying drill tool model,tensile strength and stress of wearing drill tool were analyzed and determined,and the relationship between drill tool degree of wear and safety well depth was obtained

关 键 词：石油钻井 钻具安全 磨损减薄 拉伸强度 

分 类 号：TE921.2[石油与天然气工程—石油机械设备]