基于Ansys Workbench通地1井的绳索取心钻杆接头疲劳分析  

Fatigue Analysis on Wire-line Coring Drill Pipe Joints in Tonghua Well-1 Based on Ansys Workbench

作　　者：高建龙 马银龙[1,2] 王丹丹 计胜利 

机构地区：[1]吉林大学建设工程学院,吉林长春130026 [2]国土资源部复杂条件钻采技术重点实验室,吉林长春130026 [3]中国地质调查局油气资源调查中心,北京100029

出　　处：《探矿工程（岩土钻掘工程）》2017年第10期70-78,共9页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：吉林大学"轻质耐磨仿生构型铝合金钻杆材料研制"(编号:451160306007);中国地质调查局油气地质调查项目"通化盆地地质调查井工程"(编号:12120115001701-5)

摘　　要：通过分析通化盆地地质调查井工程钻探施工工况、钻杆折断事故及折断部位,基于钻杆和钻进工艺参数对井内钻杆接头螺纹受力进行理论计算,采用SolidWorks对钻杆接头螺纹连接处进行建模,然后将模型导入Ansys Workbench中进行应力和疲劳仿真分析,预测钻杆接头的疲劳寿命。通过分析仿真结果,再结合地质岩心编录和测井资料,探讨涌水伴随大量气体钻探施工的钻杆折断原因,优化钻进工艺参数,从而减少孔内钻杆折断事故的发生。Through the analysis on the construction conditions, the drill pipe breaking accidents and the broken parts in the geographical survey well in Tonghua Basin, and on the basis of drill pipes and drilling parameters, the thread stress of the drill pipe joint was calculated. The modeled thread connection part of drill pipes was established by means of SolidWorks, which was then introduced into Ansys Workbench for stress and fatigue simulation analysis to predict the fatigue life of the drill pipe joint. Based on the analysis on simulation results and combined with the geological core cataloging and logging data, the causes of the drill pipe breakage occurring under the conditions of gushing water with a large amount of gas are discussed and the drilling parameters are optimized to reduce the occurrence of the drill pipe breakage in the hole.

关 键 词：钻杆接头 钻杆折断 通地1井 仿真分析 疲劳分析 

分 类 号：P634.42[天文地球—地质矿产勘探]