水平井均衡采油流体控制阀调控规律研究

doi:10.11885/j.issn.1674-5086.2023.10.20.02

西南石油大学学报(自然科学版) ›› 2025, Vol. 47 ›› Issue (4): 155-164.DOI: 10.11885/j.issn.1674-5086.2023.10.20.02

水平井均衡采油流体控制阀调控规律研究

肖晓华¹, 韩硕², 赵建国², 王国荣²

1. 西南石油大学网络与信息化中心, 四川成都 610500;
2. 西南石油大学机电工程学院, 四川成都 610500

收稿日期:2023-10-20 发布日期:2025-07-25
通讯作者: 肖晓华，E-mail:xiaoxh@swpu.edu.cn
作者简介:肖晓华，1965年生，女，汉族，四川资阳人，教授，硕士，主要从事机械设计及理论和井下智能钻完井工具研究。E-mail:xiaoxh@swpu.edu.cn
韩硕，1997年生，男，汉族，河南商丘人，硕士研究生，主要从事井下井下智能钻完井工具的研究。E-mail:862609672@qq.com
赵建国，1988年生，男，汉族，四川中江人，讲师，博士，主要从事井下机器人等钻完井工具及工艺研究。E-mail:469650774@qq.com
王国荣，1977年生，男，汉族，四川成都人，教授，博士，主要从事钻头与井下工具、石油天然气装备现代化设计理论研究。E-mail:15915732@qq.com
基金资助:
国家自然科学基金（52004232，U19A200380）；过程装备与控制工程四川高校重点实验室开放基金（GK202006）

A Study on the Control Law of Fluid Control Valve for Balanced Production in Horizontal Wells

XIAO Xiaohua¹, HAN Shuo², ZHAO Jianguo², WANG Guorong²

1. Network & Information Center, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. School of Mechanical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received:2023-10-20 Published:2025-07-25

摘要/Abstract

摘要： 针对水平井非均衡采油导致油气井寿命短、产量低的技术难题，提出了梯形节流孔的新型流体控制阀，该阀最大节流压差达到2.65 MPa。建立了水平井多层流体控制阀流压仿真模型，该仿真模型考虑了新型流体控制阀的节流性能、安装位置、地层压力分布。研究发现：为实现均衡采油，从趾端到跟端流体控制阀开度逐渐减小，各层段压差越大流体控制阀开度越小，压差在0.01~0.10 MPa，各层开度的最大下降值约为37.2%；各层流体控制阀间距越长，流体控制阀开度越大，阀距在100~500 m，各层开度最大增大值约为2.8%。研究成果为水平井流体控制阀采油管串结构优化设计、生产制度制定、流体控制阀开度的控制提供了理论依据，对促进流体控制阀在水平井的推广及应用具有重要的意义。

关键词: 水平井, 均衡采油, 流体控制阀, 数值模拟, 流场仿真

Abstract: Aiming at the technical problems of short life and low production of oil and gas wells caused by unbalanced production of horizontal wells, a new fluid control valve with trapezoidal orifice is proposed, and the maximum throttling pressure difference of the valve reaches 2.65 MPa. The flow pressure simulation model of multi-layer fluid control valve for horizontal well is established, which considers the throttling performance, installation size and formation pressure distribution of the new fluid control valve. It is found that in order to achieve balanced oil production, the opening of the fluid control valve gradually decreases from toe to heel. The greater the pressure difference of each layer, the smaller the opening of the fluid control valve. The pressure difference is between 0.01~0.10 MPa, and the maximum reduction of the opening of each layer is about 37.2%. The longer the distance between the fluid control valves in each layer, the greater the opening of the fluid control valve. The valve distance is between 100 m and 500 m, and the maximum increase of the opening in each layer is about 2.8%. The research results provide a theoretical basis for the optimization design of the production string structure of the fluid control valve in horizontal wells, the formulation of the production system, and the control of the opening of the fluid control valve, which is of great significance for promoting the popularization and application of the fluid control valve in horizontal wells.

Key words: horizontal well, balanced production, fluid control valve, numerical simulation, flow field simulation

中图分类号:

TE355

肖晓华, 韩硕, 赵建国, 王国荣. 水平井均衡采油流体控制阀调控规律研究[J]. 西南石油大学学报(自然科学版), 2025, 47(4): 155-164.

XIAO Xiaohua, HAN Shuo, ZHAO Jianguo, WANG Guorong. A Study on the Control Law of Fluid Control Valve for Balanced Production in Horizontal Wells[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2025, 47(4): 155-164.

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水平井均衡采油流体控制阀调控规律研究

A Study on the Control Law of Fluid Control Valve for Balanced Production in Horizontal Wells

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