Measuring solid particles in sand-carrying gas flow using multiscale vibration response statistics and deep learning algorithms

作者：Kai Wang, Ziang Chang, Jiaqi Tian, Min Qin, Guangming Fu, Yichen Li, Gang Wang · 发表于：Mechanical Systems and Signal Processing · 年份：2024 · DOI：10.1016/j.ymssp.2024.111103 · 被引用次数：7 · 研究领域：Drilling and Well Engineering、Hydraulic Fracturing and Reservoir Analysis、Flow Measurement and Analysis

A method to quantitate sand particles in turbulent gas flow that combines the multiscale triaxial vibration response and deep learning algorithms is proposed. First, an optimized adaptive wavelet-empirical mode decomposition (EMD) denoising method is proposed based on multifrequency coherent and statistical analysis. Second, complex gas–solid turbulent flow information under multiple gas–particle coupling is characterized based on Hilbert-Huang transform (HHT), Hurst analysis, EMD entropy, etc. In addition, a deep learning algorithm that integrates multiscale flow information to determine sand content that includes two independent branches, a pure deep convolutional neural network (CNN) model driven by microscale triaxial response and a shallow long short-term memory (LSTM) network with regularization driven by mesoscale triaxial response, is proposed. Finally, a quantitative model to characterize sand-carrying turbulent gas flow based on the entropy weight effect of the triaxial vibration response is constructed as follows: C sand = A · p . ∑ i = x z S i Q i . Experimental validation indicates that the proposed deep learning algorithm has recognition and prediction accuracy of 97.8% and 96.97% for sand particle size and the power spectrum, respectively, which are higher than those of the existing intelligent models to characterize sand information. Moreover, the quantitative sand content model based on the multiscale response and deep learning algorithm has a maximum error o...