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气举反循环双壁钻具流场仿真分析

伍晓龙, 冯钰琦, 杜垚森, 高鹏举, 赵远, 王晓赛, 汤小仁, 王庆晓. 2022. 气举反循环双壁钻具流场仿真分析. 钻探工程, 49(3): 83-91. doi: 10.12143/j.ztgc.2022.03.011
引用本文: 伍晓龙, 冯钰琦, 杜垚森, 高鹏举, 赵远, 王晓赛, 汤小仁, 王庆晓. 2022. 气举反循环双壁钻具流场仿真分析. 钻探工程, 49(3): 83-91. doi: 10.12143/j.ztgc.2022.03.011
WU Xiaolong, FENG Yuqi, DU Yaosen, GAO Pengju, ZHAO Yuan, WANG Xiaosai, TANG Xiaoren and WANG Qingxiao, . 2022. Simulation analysis of the flow field of the air lift reverse circulation dual wall drill tool. DRILLING ENGINEERING, 49(3): 83-91. doi: 10.12143/j.ztgc.2022.03.011
Citation: WU Xiaolong, FENG Yuqi, DU Yaosen, GAO Pengju, ZHAO Yuan, WANG Xiaosai, TANG Xiaoren and WANG Qingxiao, . 2022. Simulation analysis of the flow field of the air lift reverse circulation dual wall drill tool. DRILLING ENGINEERING, 49(3): 83-91. doi: 10.12143/j.ztgc.2022.03.011

气举反循环双壁钻具流场仿真分析

  • 基金项目:

    国家重点研发计划课题“煤层瓦斯赋存参数的地面准确测定技术及装备”(编号:2018YFC0808001)

详细信息
    作者简介: 伍晓龙,男,汉族,1987年生,高级工程师,机械设计制造及其自动化专业,主要从事钻探设备研发及钻井工艺研究工作,河北省廊坊市金光道77号,wxl1987516@163.com。
  • 中图分类号: P634

Simulation analysis of the flow field of the air lift reverse circulation dual wall drill tool

  • 气举反循环钻进工艺具有钻进效率高、工艺配套简单、孔内干净等特点,广泛应用于工程实践中。但由于配套的双壁钻具结构设计主要依据经验进行,在理论研究方面不成熟,导致对工程应用中出现的问题缺乏深度分析。文章借助数值模拟研究方法对气举反循环技术中双壁钻杆环形空间与气水混合器两个重要部件的流场速度与压力特征进行数值仿真。结果表明:减少双壁钻杆环形空间的变径或增加变径长度更有利于减少压力损失和能量损耗,气水混合器完全对称的进气孔结构更有利于上返速度的均匀性,减少堵塞问题的发生。研究结果可为气举反循环钻具的设计及解决实际工程问题提供参考。
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出版历程
收稿日期:  2022-02-24
修回日期:  2022-04-22

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