大位移井钻柱强度分析方法及应用  

Analysis Methods of Drill String Strength in Extended Reach Wells

作　　者：都振川[1] 

机构地区：[1]胜利石油管理局钻井工程技术公司,山东东营257064

出　　处：《石油钻探技术》2002年第4期9-11,共3页Petroleum Drilling Techniques

摘　　要：在分析大位移钻井中钻柱的工作和受力特点的基础上 ,通过理论分析和借鉴定向钻井钻柱强度计算及分析模型 ,建立了一套适合于大位移井钻柱强度计算和校核的工程应用方法。利用该方法对胜利油田埕北 2 1-平 1井两趟钻的钻柱进行了强度计算和分析。计算结果表明 。Based on the analysis of working conditions of drill strings in extended reach well (ERW) drilling, a series of engineering methods are founded to calculate and calibrate the strength of drill strings in ERW, through theoretical analysis and referring to the calculation & analysis models of drill string strength in directional wells. Calculations of drill string strength are made for the Chengbei 21 Ping 1 Well in Shengli Oilfield by using this method. The calculations show that the shear stress caused by torque will be the main considerations of drill string strength in ERD.

关 键 词：大位移井 钻柱强度 应用 石油钻井 钻柱力学 强度 安全系数 数学模型 胜利油田 埕北21-平1井 

分 类 号：TE243[石油与天然气工程—油气井工程]