控压钻井节流阀液-固两相流冲蚀预测及验证

doi:10.7623/syxb201506013

石油学报 ›› 2015, Vol. 36 ›› Issue (6): 754-759.DOI: 10.7623/syxb201506013

控压钻井节流阀液-固两相流冲蚀预测及验证

王国荣¹, 楚飞¹, 陶思宇¹, 朱颢², 张敏¹, 陈宝康¹, 周然¹, 刘鹏¹

1. 西南石油大学机电工程学院四川成都 610500;
2. 中国石油化工集团石油工程机械有限公司湖北武汉 430205

收稿日期:2014-12-14 修回日期:2015-05-05 出版日期:2015-06-25 发布日期:2015-08-06
通讯作者: 楚飞,男,1989年3月生,2013年获中国石油大学(北京)学士学位,现为西南石油大学硕士研究生,主要从事石油井控设备的研究工作。Email:chufei02@163.com
作者简介:王国荣,男,1977年9月生,1998年获西南石油学院学士学位,2004年获西南石油大学博士学位,现为西南石油大学机电工程学院教授,主要从事岩石破碎学与钻头、机械系统动力学和计算机仿真等方面的研究工作。Email:swpi2002@163.com
基金资助:
国家重大科技专项(2011ZX05048-04HZ)和西南石油大学机电学院研究生创新基金(CX2014SY33)资助。

Prediction and verification on liquid-solid two-phase flow erosion of managed pressure drilling throttle valve

Wang Guorong¹, Chu Fei¹, Tao Siyu¹, Zhu Hao², Zhang Min¹, Chen Baokang¹, Zhou Ran¹, Liu Peng¹

1. College of Mechanical and Electrical Engineering, Southwest Petroleum University, Sichuan Chengdu 610500, China;
2. Sinopec Petroleum Machinery Company, Hubei Wuhan 430205, China

Received:2014-12-14 Revised:2015-05-05 Online:2015-06-25 Published:2015-08-06

摘要/Abstract

摘要：

运用欧拉-拉格朗日法和离散相模型,预测了节流阀内部粒子运动和分布规律,利用半经验冲蚀模型求解了颗粒对阀芯的冲蚀率,并设计相关实验验证了数值模拟的准确性。结果表明,数值模拟能够较为精确地预测节流阀阀芯的冲蚀轮廓;5 h以内的预测冲蚀损失量与实验数据贴合度很高,5 h以后的预测数据经合理修正后与实验结果相近,随冲蚀时间增长,预测误差逐渐减小,最终达到1% 以下;该模型能够用于预测控压钻井节流阀复杂流场的冲蚀,有望为控压钻井节流阀的进一步优化设计提供参考。

关键词: 控压钻井节流阀, 液-固两相流, 离散相模型, 冲蚀预测, 实验, 控压钻井节流阀, 液-固两相流, 离散相模型, 冲蚀预测, 实验

Abstract:

The Eulerian-Lagrangian model and discrete phase model are used to predict the internal particle movement and distribution law of throttle valve. The semi-empirical erosion model is applied to calculate the erosion rate of grain on valve spool. Meanwhile, relevant experiments have been designed to validate the accuracy of numerical simulation. Results show that the erosion profile of throttle valve spool can be predicted more precisely with the use of numerical simulation. The predicted erosion loss within five hours has a high consistency with experimental data, while that after five hours is close to the experiment results through reasonable correction. With the extension of erosion time, the prediction error will decrease gradually, eventually less than 1%. This method can be applied to predict the erosion of complex flow field in managed pressure drilling throttle valve, thus providing a reference for further optimization of the throttle valve.

Key words: managed pressure drilling throttle valve, solid-liquid two-phase flow, discrete phase model, erosion prediction, experiment, managed pressure drilling throttle valve, solid-liquid two-phase flow, discrete phase model, erosion prediction, experiment

中图分类号:

TE98

王国荣, 楚飞, 陶思宇, 朱颢, 张敏, 陈宝康, 周然, 刘鹏. 控压钻井节流阀液-固两相流冲蚀预测及验证[J]. 石油学报, 2015, 36(6): 754-759.

Wang Guorong, Chu Fei, Tao Siyu, Zhu Hao, Zhang Min, Chen Baokang, Zhou Ran, Liu Peng. Prediction and verification on liquid-solid two-phase flow erosion of managed pressure drilling throttle valve[J]. Acta Petrolei Sinica, 2015, 36(6): 754-759.

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控压钻井节流阀液-固两相流冲蚀预测及验证

Prediction and verification on liquid-solid two-phase flow erosion of managed pressure drilling throttle valve

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