中国机械工程 ›› 2026, Vol. 37 ›› Issue (7): 1595-1602.DOI: 10.3969/j.issn.1004-132X.2026.07.008

• 机械基础工程 • 上一篇    

基于变径轮廓优化的控压节流阀线性设计

陈亚洲1,2(), 王国荣1,2(), 董学成3, 唐洋1,2   

  1. 1.西南石油大学机电工程学院, 成都, 610500
    2.西南石油大学能源装备研究院, 成都, 610500
    3.成都理工大学油气藏地质及开发工程全国重点实验室, 成都, 610059
  • 收稿日期:2025-07-04 出版日期:2026-07-25 发布日期:2026-08-18
  • 通讯作者: 王国荣
  • 作者简介:陈亚洲,男,2001年生,博士研究生,研究方向为特深井井控装备。发表论文2篇。E-mail:2569164339@qq.com
    王国荣*(通信作者),男,1977年生,教授,博士研究生导师。E-mail:200331010023@swpu.edu.cn
  • 基金资助:
    国家科技重大专项(2024ZD1404705);四川省自然科学基金(2025ZNSFSC0442);国家重点研发计划(2021YFC2800903)

Linear Design of Pressure-control Throttle Valve Based on Variable-diameter Profile Optimization

CHEN Yazhou1,2(), WANG Guorong1,2(), DONG Xuecheng3, TANG Yang1,2   

  1. 1.School of Mechatronic Engineering,Southwest Petroleum University,Chengdu,610500
    2.Energy Equipment Institute,Southwest Petroleum University,Chengdu,610500
    3.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu,610059
  • Received:2025-07-04 Online:2026-07-25 Published:2026-08-18
  • Contact: WANG Guorong

摘要:

针对深井及超深井控压钻井节流阀开度与压降非线性导致的控压精度不足问题,提出了基于变径轮廓优化的多类型节流阀线性设计方法。通过建立阀芯行程与节流面积的动态映射关系,并结合黏性流体总流伯努利方程、Leibniz 定理,以及动能和面积的修正机制,对筒形阀芯和楔形阀芯的轮廓进行优化设计。实验结果表明,筒形阀、楔形阀在 0~100% 有效行程范围内的压降线性相关系数分别达到 0.9932 和 0.9919,验证了所提方法可实现节流阀的全行程线性控压。

关键词: 线性化压降响应, 变径轮廓优化, 阀芯设计, 节流阀, 控压钻井

Abstract:

To improve pressure control accuracy in managed-pressure-drilling for deep and ultra-deep wells, this paper proposes a linear design method for multiple-type throttle valves based on variable-diameter profile optimization. A dynamic mapping relationship between valve core stroke and throttling area was established, incorporating the viscous-fluid total-flow Bernoulli equation, Leibniz theorem, and kinetic energy and area correction mechanisms. Using this approach, the profiles of cylindrical and wedge-shaped valve cores were optimized. Experimental results demonstrate that the linear correlation coefficients of pressure drop for the cylindrical valve and wedge-shaped valve reach 0.9932 and 0.9919, respectively, within the 0-100% effective stroke range. These findings confirm that the proposed method enables fullstroke linear pressure control of throttle valves.

Key words: linear pressure-drop response, variablediameter profile optimization, valve core design, throttle valve, managed-pressure-drilling

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