超大扭矩螺杆钻具特殊连接螺纹的安全性分析及应用

熊建华; 易先中; 秦赛博; 陈志湘; 易军; 熊远才; 尹作鹏; 徐永和

doi:10.3969/j.issn.1006-6535.2026.01.015

特种油气藏 >

2026 , Vol. 33 >Issue 1: 130 - 139

DOI: https://doi.org/10.3969/j.issn.1006-6535.2026.01.015

钻采工程

超大扭矩螺杆钻具特殊连接螺纹的安全性分析及应用

熊建华 ,
易先中 ,
秦赛博 ,
陈志湘 ,
易军 ,
熊远才 ,
尹作鹏 ,
徐永和

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1.中国石化江苏油田分公司,江苏扬州 225000;
2.长江大学,湖北荆州 434023;
3.湖北省智能油气钻釆装备企校联合创新中心,湖北荆州 434000;
4.中国石油大学(北京)石油工程教育部重点实验室,北京 102249;
5.扬州华元油气技术有限公司,江苏扬州 225000;
6.湖北育明源电力建设工程有限公司,湖北荆州 434000;
7.湖北赛利恩特石油科技有限公司,湖北荆州 434000;
8.盐城市新永佳石油机械制造有限公司,江苏盐城 224043

熊建华(1968—),男,高级工程师,1989年毕业于石油大学(华东)采油工程专业,现从事油田开发、石油工程技术研究及管理工作。

收稿日期: 2025-01-07

修回日期: 2025-09-12

网络出版日期: 2026-06-22

基金资助

国家自然科学基金“超压碳酸盐岩弹性波速度研究”(41702135);“十四五”前瞻性基础性重大科技项目“地层不整合油气藏成藏主控因素与关键要素定量评价技术研究”(2021DJ0405)

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Safety analysis and application of special connection threads for ultra-high-torque screw drilling tools

XIONG Jianhua ,
YI Xianzhong ,
QIN Saibo ,
CHEN Zhixiang ,
YI Jun ,
XIONG Yuancai ,
YIN Zuopeng ,
XU Yonghe

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1. Sinopec Jiangsu Oilfield Company, Yangzhou, Jiangsu 225000, China;
2. Yangtze University, Jingzhou, Hubei 434023, China;
3. Hubei Provincial Enterprise-University Joint Innovation Center for Intelligent Oil & Gas Drilling and Production Equipment, Jingzhou, Hubei 434000, China;
4. Key Laboratory of Petroleum Engineering, Ministry of Education, China University of Petroleum(Beijing), Beijing 102249, China;
5. Yangzhou Huayuan Oil & Gas Technology Co., Ltd., Yangzhou, Jiangsu 225000, China;
6. Hubei Yu mingyuan Electric Power Construction Engineering Co., Ltd., Jingzhou, Hubei 434000, China;
7. Hubei Sletpetro Technology Co., Ltd., Jingzhou, Hubei 434000, China;
8. Yancheng Xinyongjia Petroleum Machinery Manufacturing Co., Ltd., Yancheng, Jiangsu 224043, China

Received date: 2025-01-07

Revised date: 2025-09-12

Online published: 2026-06-22

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摘要

螺纹接头是螺杆钻具壳体的薄弱环节,为减少螺杆钻具井下作业时螺纹断裂失效情况的发生,提高连接螺纹的力学性能,利用有限元仿真方法分析了4种新型特殊连接螺纹结构在复杂载荷下的承载特性、力学性能、抗疲劳性能及抗振性能,并在泸208H2区块对优选的新型特殊连接螺纹进行现场应用评价。研究表明:新型特殊连接螺纹结构Ⅲ有更好的承载性能,在复杂载荷和交变弯矩载荷作用下,结构强度满足材料强度安全要求,失效风险低;振动激励载荷作用下,新型特殊连接螺纹结构Ⅲ接触压力分布相对均匀,且满足强度安全要求,抗振性能良好。现场应用试验中,新型特殊连接螺纹结构Ⅲ不仅能增强钻具组合的机械性能和钻头破岩效果,而且单个连接螺纹连续作业1 500 h以上,未出现任何事故,应用效果良好。该研究结果可为超大扭矩螺杆钻具连接螺纹的结构设计提供参考。

关键词： 螺杆钻具; 承载性能; 复杂载荷; 圆周应力; 振动激励; 接触压力

本文引用格式

熊建华 , 易先中 , 秦赛博 , 陈志湘 , 易军 , 熊远才 , 尹作鹏 , 徐永和 . 超大扭矩螺杆钻具特殊连接螺纹的安全性分析及应用[J]. 特种油气藏, 2026 , 33(1) : 130 -139 . DOI: 10.3969/j.issn.1006-6535.2026.01.015

Abstract

The threaded connection is the weak link in the housing of a screw drilling tool.To reduce the occurrence of thread fracture failures during downhole operations and improve the mechanical performance of connection threads,finite element simulation was used to analyze the load-bearing characteristics,mechanical performance,fatigue resistance,and vibration resistance of four new special connection thread structures under complex loads.A field application of the optimized new special connection thread was carried out in the LU208H2 Block.The results indicate that the new special connection thread structure Ⅲ exhibits better load-bearing performance.Under complex loads and alternating bending moments,its structural strength meets material strength safety requirements,and the failure risk is low.Under vibrational excitation loads,the contact pressure distribution of the special connection thread structure Ⅲ is relatively uniform and meets strength safety requirements,demonstrating good vibration resistance.In field trials,the new special connection thread structure Ⅲ not only enhanced the mechanical performance of the drilling assembly and the rock-breaking effectiveness of the bit,but also allowed a single connection thread to operate continuously for over 1500 hours without any failures,showing excellent performance.These results provide reference for the structural design of connection threads in ultra-high-torque screw drilling tools.

Key words： screw drilling tool; load-bearing performance; complex load; circumferential stress; vibrational excitation; contact pressure

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