摘要
针对钻井过程中,出现的卡钻、粘滑现象,提出了一种产生扭转振动的新型扭力冲击器。首先分析了扭力冲击器的工作原理,然后,结合扭力冲击器工作的实际情况,建立了扭力冲击器运动学模型,并在此基础上,得到了扭力冲击器的碰撞频率与入口压强、入口流量之间的关系。最后通过实验测试与算例计算的结果进行对比,验证了计算方法的准确性与可靠性。研究结果表明:扭力冲击器的碰撞频率与入口压强、入口流量有着密切关系。碰撞频率与入口压强成正比,与入口流量呈反比。研究结论为扭力冲击器的进一步研究打下了基础,为扭力冲击器的现场使用了提供了参考依据。
A iming at the sticking and stick-slip phenomenon during the drilling process, a new torque oscillator is presented. At first, according to the torsional theory, the operating principle of the torque oscillator is analyzed. And then, the relationships between the collision frequency and the inlet pressure, inlet flow are obtained on the basic of the kinematic model, which is established in light of the actual working condition. Compared with the example calculation results, the experimental test verifies the accuracy and reliability of calculation method. The research results show that the collision frequency and the inlet pressure, inlet flow of the torque oscillator have close relationships. With the inlet pressure increasing and the inlet flow decreasing, the collision frequency of the torque oscillator increases. The research conclusion lays a foundation for further study on the torque oscillator, and provides the reference basis forfield using.
出处
《机械设计与制造》
北大核心
2016年第3期75-78,共4页
Machinery Design & Manufacture
基金
石油天然气装备教育部重点实验室开放课题(OGE201403-05)
国家自然科学基金(51074202)
四川省教育厅成果转化重大培育项目资助(12ZZ003)
关键词
钻井
井下工具
扭力冲击器
运动学
频率
Drillin
Downhole Tool
Torque Oscillator
Kinematics
Frequency
