阵列成像算法的应用,用于在水平井内的气-水两相流中测量水保持量
Haimin Guo1,2, Ao Li1, Yongtuo Sun1
1College of Geophysics and Petroleum Resources, Yangtze University, Wuhan 430100, China.
Sensors (Basel, Switzerland)
|August 14, 2025
概括
在水平井中准确的保持水位成像对于理解气-水流量至关重要. 这项研究使用各种插值方法评估了电容阵列工具 (CAT) 的测量结果,揭示了不同流动模式的最佳算法.
科学领域:
- 石油工程是石油工程中的一个.
- 流体动力学 流体动力学
- 多相流程 多相流程
背景情况:
- 井中的气水双相流是复杂的,因为重力和不对称性.
- 精确的保持水量测量对于分析相位分布和流动行为至关重要.
- 水保持成像提供了井口内的气体和水相的可视化.
研究的目的:
- 为了评估一个电容阵列工具 (CAT) 的性能,用于水平井的保持水量测量.
- 为了比较不同的插值算法 (线性,反向距离,拉格朗日) 的精度,用于保持水的成像.
- 评估CAT测量在各种流量和水切割的可靠性.
主要方法:
- 在水平井设置中使用空气和自来水模拟气水流.
- 使用电容阵列工具 (CAT) 在不同条件下收集228个数据集.
- 在MATLAB中使用线性,逆距离和拉格朗日插值算法处理数据.
- 将成像结果与算术平均和整合方法进行比较,以验证.
主要成果:
- CAT可靠地测量了保持水量,特别是在低到中流量条件下.
- 线性插值清楚地描绘了气-水界面在分层流.
- 反向距离和拉格朗的方法提供了精细的相位分布图像在低到中流的高含水量.
- 拉格朗的非线性插值在分散流量条件下实现了最高的精度.
结论:
- 容量阵列工具 (CAT) 成像对于可视化水平井中的气水分布是有效的.
- 插值算法的选择显著影响成像准确性和清晰度.
- 特定的算法对于不同的流动模式是最优的,使多相流动行为能够更好地分析.
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