化工进展 ›› 2021, Vol. 40 ›› Issue (12): 6441-6449.DOI: 10.16085/j.issn.1000-6613.2021-1489

• 专栏:多相流测试 • 上一篇    下一篇

管内相分隔高含水油水两相流双参数测量方法

杨杨1,2(), 胡海航1,2, 哈雯1,2, 杨斌1,2, 王栋3   

  1. 1.上海理工大学能源与动力工程学院,上海 200093
    2.上海市动力工程多相流动与传热重点实验室,上海 200093
    3.西安交通大学动力工程多相流国家重点实验室,陕西 西安 710049
  • 收稿日期:2021-07-14 修回日期:2021-08-16 出版日期:2021-12-05 发布日期:2021-12-21
  • 通讯作者: 杨杨
  • 作者简介:杨杨(1989—),女,讲师,硕士生导师,研究方向为多相流测量。E-mail:yangyang@usst.edu.cn
  • 基金资助:
    国家重大科学仪器设备开发专项(51527808)

Method of high water-cut oil-water two-phase flow measurement based on phase-isolation

YANG Yang1,2(), HU Haihang1,2, HA Wen1,2, YANG Bin1,2, WANG Dong3   

  1. 1.School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
    2.Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
    3.State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
  • Received:2021-07-14 Revised:2021-08-16 Online:2021-12-05 Published:2021-12-21
  • Contact: YANG Yang

摘要:

针对目前油田高含水油水两相流流动复杂、通常存在于密闭管道难于在线检测等问题,本文提出了一种基于管内相分隔的高含水油水两相流双参数测量方法。通过旋流器将难以测量的细小、分散油滴集中到管道中心,形成油芯-水环的相分隔状态,引入轴向压差和径向压差,建立两个差压之比的实验关联式,结合电磁流量计和差压方法测量总流量和含水率。通过数值模拟方法对差压的取压位置进行了优化设计,并开展油水两相流双参数测量实验。实验结果表明,在84%~100%高含水率范围内,油水总流量和含水率的测量误差几乎都在±5%以内。这为高含水油水两相流实时测量提供一种新的双参数测量方法和理论指导。

关键词: 两相流, 测量, 实验验证, 相分隔, 含水率, 流量

Abstract:

The high water-cut oil-water two-phase flow in the oil field is complex and usually exists in closed pipelines, so it is difficult for on-line measurement. In this paper, a dual-parameter measurement method of high water-cut oil-water two-phase flow based on phase-isolation was proposed. The small, dispersed oil droplets that were difficult to measure were concentrated to the center of the pipeline by the cyclone to form the phase-isolation with a phase distribution of oil core-water ring. The axial differential pressure and the radial differential pressure were introduced and the experimental correlation of the ratio of the two differential pressures was established. Then the total flow rate and water-cut were measured combined electromagnetic flowmeter with differential pressure method. The pressure taking position was optimized by numerical simulation method. And the double-parameter measurement experiment was carried out in oil-water two-phase flow. The results showed that the measurement errors of the total oil-water flow rate and the water-cut were both within ±5% in the range of 84%—100% water-cut. This work provides a new dual-parameter measurement method and theoretical guidance for on-line measurement of high water-cut oil-water two-phase flow.

Key words: two-phase flow, measurement, experimental validation, phase-isolation, water-cut, flow rate

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