地质特深孔绳索取心钻杆机械性能研究  

Research on mechanical properties of wireline coring drill pipe for geological ultra-deep hole

作　　者：尹浩[1] 梁健[1] 孙建华[1] 彭莉 郭宝科[3] 李鑫淼[1] 蔡纪雄 刘秀美[1] YIN Hao;LIANG Jian;SUN Jianhua;PENG Li;GUO Baoke;LI Xinmiao;CAI Jixiong;LIU Xiumei(Institute of Exploration Techniques, CAGS, Langfang Hebei 065000, China;CGE Group Wuxi Drilling Tools Co., Wuxi Jiangsu 214174, China;Xi’an University of Architecture and Technology, Xi’an Shaanxi 710055, China)

机构地区：[1]中国地质科学院勘探技术研究所,河北廊坊065000 [2]中地装〈无锡〉钻探工具有限公司,江苏无锡214174 [3]西安建筑科技大学,陕西西安710055

出　　处：《探矿工程（岩土钻掘工程）》2020年第4期58-64,共7页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：国家重点研发计划项目“5000米智能地质钻探技术装备研发及应用示范”课题三“高性能薄壁绳索取心钻杆研制”(编号:2018YFC0603403);国家自然科学基金面上项目“科学超深井铝合金钻杆的腐蚀防护机制研究”(编号:41772390);中国地质调查局地质调查项目“深海钻探技术与工程支撑”(编号:DD20190585)。

摘　　要：地质特深孔绳索取心钻杆结构区别于API石油钻杆,其机械性能计算不可直接引用API石油钻杆的相关理论公式。针对这一理论依据与计算方法缺失,本文对地质特深孔双台肩钻杆接头进行了受力分析,开展了钻杆接头拉伸载荷与扭转载荷计算理论研究,构建了绳索取心钻杆机械性能计算的理论方法。同时,通过有限元分析和台架试验,确定了H5000规格双台肩绳索取心钻杆的机械性能,验证了计算方法的准确性,并提出了钻杆结构改进建议与下一步研究方向,为高性能薄壁绳索取心钻杆“服役”于5000 m地质岩心钻探工程提供了技术支撑。wireline coring drill pipe for geological ultra-deep hole is structurally different from the API oil drill pipe;thus their mechanical properties cannot be determined by the relevant formulas of API oil drill pipe directly.In view of the lack of theoretical basis and calculation method,this paper analyzes the stress of the double shoulder drill pipe joint for geological ultra-deep hole,carries out the theoretical research on the calculation of tensile load and torsional load for the tool joint,and develops the theoretical calculation model of the wireline coring drill pipe’s mechanical properties.Through the finite element analysis and property test,the mechanical properties of the H5000 drill pipe are determined,and the accuracy of the calculation method is verified.The proposals for improving the drill pipe structure and the next research direction are put forward,which provide technical support for deployment of the high-performance thin-wall wireline coring drill pipe in the 5000m geological core drilling works.

关 键 词：特深孔 岩心钻探 绳索取心钻杆 双台肩 机械性能 上扣扭矩 

分 类 号：P634.4[天文地球—地质矿产勘探]