西南石油大学学报(自然科学版) ›› 2025, Vol. 47 ›› Issue (5): 166-180.DOI: 10.11885/j.issn.1674-5086.2023.09.18.02

• 石油机械与油田化学 • 上一篇    下一篇

高速下节流管汇材料冲蚀实验及模拟研究

曾静1, 邓宽海1, 周军平2, 刘冰1,3, 林元华1   

  1. 1. 油气藏地质及开发工程全国重点实验室·西南石油大学, 四川 成都 610500;
    2. 重庆大学资源与安全学院, 重庆 沙坪坝 400044;
    3. 贵州航天天马机电科技有限公司, 贵州 遵义 563000
  • 收稿日期:2023-09-18 发布日期:2025-11-04
  • 通讯作者: 邓宽海,E-mail:dengkuanhai@163.com
  • 作者简介:曾静,1974年生,男,汉族,四川南充人,博士,主要从事油气井工程等方面的研究。E-mail:1713261805@qq.com
    邓宽海,1988年生,男,汉族,四川内江人,副研究员,博士(后),主要从事油气井工程、油气钻井工艺方面的科研和教学工作。E-mail:dengkuanhai@163.com
    周军平,1982年生,男,汉族,湖南邵阳人,教授,博士研究生导师,主要从事地质能源(煤炭、非常规天然气)开发,二氧化碳地质利用与封存、地下储能等方面的教学和科研工作。E-mail:zhoujp1982@cqu.edu.cn
    刘冰,1990年生,男,汉族,河北保定人,博士,主要从事冲蚀磨损等方面的研究。E-mail:827034644@qq.com
    林元华,1971年生,男,汉族,四川宜宾人,教授,博士研究生导师,主要从事油气井管柱力学、油气钻井工艺及井筒完整性等方面的科研和教学工作。E-mail: yhlin28@163.com
  • 基金资助:
    国家自然科学基金(52474011);四川省科教科学基金(2025NSFSC2052)

An Experimental and Simulation Study on Material Erosion of Orifice Manifold at High Speed

ZENG Jing1, DENG Kuanhai1, ZHOU Junping2, LIU Bing1,3, LIN Yuanhua1   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. School of Resources and Safety Engineering, Chongqing University, Shapingba, Chongqing 400044, China;
    3. Guizhou Aerospace Tianma Electromechanical Science and Technology Co. Ltd., Zunyi, Guizhou 563000, China
  • Received:2023-09-18 Published:2025-11-04

摘要: 高压高产气井井控装置的节流管汇内高压差、高流速、高含砂使得高速气-固冲蚀磨损问题尤为突出、节流管汇失效频繁,极易诱发溢流、井涌及井喷事故,加剧井控风险,带来安全隐患。为此,依据标准ASTM G76—2013,采用气-固喷嘴冲蚀实验法和空气射流冲蚀实验台,开展了不同入口气压(0.06~0.15 MPa)和冲击角(15? ~90?)下节流管汇材料30CrMo合金钢的高速(107~149 m/s)气-固喷嘴冲蚀实验,得到了30CrMo合金钢在不同实验条件下的冲蚀速率,创建了适用于高速固体颗粒冲击的30CrMo合金钢冲蚀速率方程;依据冲蚀实验结果,构建了适用于高速可压缩流动的最佳颗粒运动模型;结合离散相模型和气-固两相耦合计算方法,建立了“缩径管-喷嘴-冲蚀腔”三维CFD冲蚀模型,开展了节流管汇材料30CrMo合金钢在不同冲击角和入口气压下的气-固喷嘴冲蚀模拟,揭示了流场分布特征和颗粒运动轨迹、冲击速度分布和滑移特征,并通过实验验证了模拟结果的准确性及可靠性。

关键词: 高压高产气井, 节流管汇, 气-固喷嘴冲蚀, CFD冲蚀模型, 冲蚀速率

Abstract: High pressure difference, high flow rate and high sand content in throttling manifold of high pressure and high production gas wells make the problems of high speed gas-solid erosion wear especially prominent, and the failure of throttling manifold is frequent, which is easy to induce overflow, kick and blowout accidents, aggravating well control risks and bringing safety risks. Therefore, according to ASTM G76—2013, this paper adopts gas-solid nozzle erosion test method and air jet erosion test rig. The high speed (107 to 149 m/s) gas-solid nozzle erosion test of 30CrMo alloy steel was carried out under different inlet pressure (0.06 to 0.15 MPa) and impact angle (15° to 90°), and the erosion rate of 30CrMo alloy steel under different experimental conditions was obtained. The erosion rate equation of 30CrMo alloy steel suitable for high speed solid particle impact is established. Based on the results of erosion experiments, the optimal particle motion model for high speed compressible flow is constructed. Combined with discrete phase model and gas-solid two-phase coupling calculation method, a three-dimensional CFD erosion model of “reduced-tuber-nozzle-erosion cavity” was established. The erosion simulation of gas-solid nozzle of 30CrMo alloy steel, a throttling manifold material, was carried out at different impact angles and inlet pressure, and the distribution characteristics of flow field, particle movement trajectory, impact velocity distribution and slip characteristics were revealed. The accuracy and reliability of the simulation results are verified by the experimental results.

Key words: high pressure and high production gas wells, choke manifold, gas-solid nozzle erosion, CFD erosion model, erosion rate

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