AN NUMERICAL STUDY ON FLOW FIELDS OF MULTI-JETS IMPINGING ON THE BOTTOMHOLE

doi:10.7623/syxb199802022

Editorial office of ACTA PETROLEI SINICA ›› 1998, Vol. 19 ›› Issue (2): 117-121.DOI: 10.7623/syxb199802022

• Petroleum Engineering • Previous Articles Next Articles

AN NUMERICAL STUDY ON FLOW FIELDS OF MULTI-JETS IMPINGING ON THE BOTTOMHOLE

Guan Zhichuan¹

Petroleum University, Huadong

Received:1997-02-24 Online:1998-04-25 Published:2013-07-08

多股撞击射流流场的数值模拟研究

管志川¹, 李春山¹, 苑明顺 ²

1. 石油大学东营;
2. 清华大学

作者简介:管志川,1982年毕业于华东石油学院钻井专业,1995年获石油大学工学博士学位现为石油大学(华东)石油I程系副教授.通讯处:东省东营市.邮政编码:257062
基金资助:
山东省自然科学基金,青年科学基金

Abstract

Abstract: The LES (large eddy simulation) approach has been applied successfully to simulate the flow characteristics of multi-jets impinging on the bottomhole.The flow fields of the limited multi-jets have been minutely described and "vortex-ring" in the flow fields with different hydraulic configurations have been first found by analysis of numerical simulation.The mechanism that cuttings were removed and transported by drilling fluids at bottomhole were investigated,and some new viewpoint on bottomhole cleaning were proposed.

Key words: numerical simulation, fluidies, flow field, bit

摘要： 应用湍流模拟技术中的大涡模拟方法,对井底多股受限撞击射流的流场特性进行数值模拟.通过对模拟结果的分析,给出了井底条件下多股圆喷嘴撞击射流流场结构的精细描述;揭示了不同钻头水力结构条件下流场中“旋滚圈”的存在,进而探讨了井底岩屑随液流流动的运移机理,提出了有关井底清岩理论的新观点.

关键词: 数值模拟, 射流, 流场, 钻头

Guan Zhichuan. AN NUMERICAL STUDY ON FLOW FIELDS OF MULTI-JETS IMPINGING ON THE BOTTOMHOLE[J]. Editorial office of ACTA PETROLEI SINICA, 1998, 19(2): 117-121.

管志川, 李春山, 苑明顺 . 多股撞击射流流场的数值模拟研究[J]. 石油学报, 1998, 19(2): 117-121.

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AN NUMERICAL STUDY ON FLOW FIELDS OF MULTI-JETS IMPINGING ON THE BOTTOMHOLE

多股撞击射流流场的数值模拟研究

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