深地万米井测井电缆强度分析  

Strength Analysis of Logging Cable in Deep 10km Well

作　　者：郭帅 魏荣江 张强[2] 马江湖 徐锐 岳欠杯[2] GUO Shuai;WEI Rongjiang;ZHANG Qiang;MA Jianghu;XU Rui;YUE Qianbei(Material and Equipment Branch,China National Logging Corporation,Xi’an,Shaanxi 710299,China;School of Mechanical Science and Engineering,Northeast Petroleum University,Daqing,Heilongjiang 163318,China;Market Production Department,China National Logging Corporation,Xi’an,Shaanxi 710077,China)

机构地区：[1]中国石油集团测井有限公司物资装备公司,陕西西安710299 [2]东北石油大学机械科学与工程学院,黑龙江大庆163318 [3]中国石油集团测井有限公司市场生产处,陕西西安710077

出　　处：《测井技术》2024年第1期59-66,共8页Well Logging Technology

基　　金：国家自然科学基金项目“万米深井PDC钻头冲击破岩机理及提速方法研究”(52274005);中国石油天然气集团有限公司科技重大专项“万米超深层钻探关键工程技术与装备研制”(2023ZZ20)。

摘　　要：中国超深层油气资源潜力巨大,推进超深层油气勘探、实现新层系突破是开拓油气新领域的重点方向。针对深地某科探井万米电缆遇卡等问题,采用截面法,建立电缆在井下、天滑轮、地滑轮、滚筒等位置处的有限元模型,研究拉力棒、滚筒直径、上提速度对万米测井电缆强度的影响。计算结果表明:为保证在电缆不断的情况下使设置的弱点先断,并为电缆保留一定安全系数,可以选用5000lbf^(*)拉力棒;选用大直径的滚筒来减小电缆张力,优先选用直径700mm的滚筒;测井电缆正常上提工作速度取6000m/h,此时电缆张力可达61.4kN,满足强度要求。研究成果为深地万米井测井作业电缆、滚筒、拉力棒的选取提供了基础数据。China has a huge potential for ultra-deep oil and gas resources.To promote ultra-deep oil and gas exploration and achieve breakthroughs in new layers is the key direction for exploring new fields of oil and gas.In order to address potential cable jamming issues in the 10km deep ground well,a finite element mechanical model is developed for the underground cables,including those at the top pulley,bottom pulley,and drum,using the cross-sectional method.The study investigated the impact of factors such as the tensile rod,drum diameter,and lifting speed on the strength of the 10km well cable.The calculation results show that:in order to ensure that the weak point is broken first in the case of continuous cable and to reserve a certain safety factor for the cable,the 5000lbf pull rod can be selected;the large diameter roller is selected to reduce the cable tension,and the roller with a diameter of 700mm is preferred;the normal lifting speed of the logging cable is 6000m/h,and the cable tension can reach 61.4kN,meeting the strength requirements.The research results provide basic data for the selection of logging cables,rollers and pull rods for deep 10km wells.

关 键 词：万米深井 测井电缆 弱点 强度 有限元分析 

分 类 号：P631.84[天文地球—地质矿产勘探]