复合冲击钻井立体破岩特性模拟研究

doi:10.16182/j.issn1004731x.joss.19-FZ0318

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (11): 2471-2476.doi: 10.16182/j.issn1004731x.joss.19-FZ0318

复合冲击钻井立体破岩特性模拟研究

李玉梅¹, 于丽维², 张涛¹, 苏中¹, 刘建明¹

1. 北京信息科技大学高动态导航技术北京市重点实验室,北京 100101;
2. 新疆油田公司工程技术研究院,新疆克拉玛依 834000

收稿日期:2019-04-20 修回日期:2019-07-14 出版日期:2019-11-10 发布日期:2019-12-13
作者简介:李玉梅(1981-), 女, 郓城, 博士, 助理研究员, 研究方向为油气井复杂工况数值模拟计算方法。
基金资助:
北京市属高校高水平教师队伍建设支持计划-青年拔尖人才培育计划项目(CIT&TCD201804057), 北京市教委一般项目(KM201811232011)

Numerical Simulation of Rock Breaking Mechanism for Compound Percussion Drilling

Li Yumei¹, Yu Liwei², Zhang Tao¹, Su Zhong¹, Liu Jianming¹

1. Beijing Key Laboratory of High Dynamic Navigation Technology, Beijing Information Science & Technology University, Beijing 100101, China;
2. Engineering Research Institute of Petro China Xinjiang Oilfield Company, Karamay 834000, China

Received:2019-04-20 Revised:2019-07-14 Online:2019-11-10 Published:2019-12-13

摘要/Abstract

摘要： 利用ABAQUS动力学冲击模块建立PDC单齿-岩石冲击作用数值计算模型,研究切削齿在受转速、钻压、交变冲击扭矩、交变冲击力等多载荷耦合作用下的复合冲击动态破岩方式及破岩效果。研究发现：扭转冲击比旋转冲击的破岩效率提高39.28%,复合冲击比扭转冲击破岩效率提高27.79%;冲击作用时间相同,岩石表面剪切作用力S_复合>S_扭力>S_旋冲;复合冲击侵入岩石深度的特征曲线具有阶跃式的特征。复合冲击钻井破岩机理的研究为工具的进一步优化奠定了理论基础。

关键词: 复杂地层, 复合冲击, 破岩机理, PDC(Polycrystalline Diamond Compact bit), 冲击频率

Abstract: The ABAQUS dynamic impact module is used to establish the numerical calculation model for PDC single tooth-rock impact. The effects of PDC cutting teeth on the dynamic rock breaking mode and rock breaking effect under the combined action of rotating speed, drilling pressure, alternating impact torque and alternating impact force are studied. The study shows that the torsional impact mode is 39.28% higher than the rock breaking efficiency of the rotary impact, and the compound percussion mode is 27.79% higher than the rock breaking efficiency of the torsional impact. Under the same conditions of impact time, the rock surface shear force is S_composite>S_torque>S_swirl. The characteristic curve of the composite impact intrusion into the rock depth has a step-like characteristic. The study of the mechanism of the compound percussion drilling technology for rock breaking has laid a theoretical foundation for further development and optimization of the tools.

Key words: heterogeneity formation, compound percussion, rock breaking mechanism, PDC(Polycrystalline Diamond Compact bit), impact frequency

中图分类号:

TE31

李玉梅, 于丽维, 张涛, 苏中, 刘建明. 复合冲击钻井立体破岩特性模拟研究[J]. 系统仿真学报, 2019, 31(11): 2471-2476.

Li Yumei, Yu Liwei, Zhang Tao, Su Zhong, Liu Jianming. Numerical Simulation of Rock Breaking Mechanism for Compound Percussion Drilling[J]. Journal of System Simulation, 2019, 31(11): 2471-2476.

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复合冲击钻井立体破岩特性模拟研究

Numerical Simulation of Rock Breaking Mechanism for Compound Percussion Drilling

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