在役作业井架安全承载能力评价方法研究  

Evaluation Method Study on Safety Load Capacity of Workover Mast In-service

作　　者：周悦琴 

机构地区：[1]大庆油田有限责任公司试油试采分公司,黑龙江大庆163318

出　　处：《机械研究与应用》2014年第4期91-93,共3页Mechanical Research & Application

基　　金：黑龙江省教育厅科学技术研究项目资助(编号:12541057)

摘　　要：针对在役作业井架的结构特点,采用三维空间梁单元模拟井架各杆件,采用单轴向受拉杆单元模拟绷绳,建立井架-绷绳模型。考虑常见的几种损伤形式,推导了等效处理关系式。开展了必要的加载试验,并与实测数据相结合对该井架安全承载性能进行了评定。结果表明:应用该方法可以确定井架的薄弱部位、安全承载能力,为在役作业井架承载能力的预测和评价提供有价值的建议,适于工程应用。Aiming at structure feature of workover mast,mast-guy model is built, in which, three-dimensional beam element is used to simulate the bar of mast and the uniaxially pulled link element is used to simulate the guy. The damage equivalent functions are deduced. The loading test is necessarilly carried out. Combined the measured data, its safety bearing capacity is evaluated. The results indicate the dangerous position and safety bearing capacity can be obtained. It provides some valuable suggestions for the prediction and evaluation of safety load capacity of workover mast in-service, and is suitable for engineering applications.

关 键 词：作业井架 安全承载能力 仿真 绷绳 损伤 TIMOSHENKO梁理论 

分 类 号：TE923[石油与天然气工程—石油机械设备]