Safety issues are always a major concern in the oil and gas transportation facilities. Equipment damages are frequently encountered due to solid deposition such as gas hydrate deposition. A fast and efficient detection of the location, length, and rate of the accumulating blockage will significantly help relieve the potential risk. Most existing pressure wave‐based models suffer the difficulty to properly predict the blockage percentage arising from the ignorance of the wave attenuation. In the present work, an attenuation model to describe the transportation of the pressure pulse wave in gas is developed; the effects of waveform distortion and absorption as a result of the nonlinear effect and viscous dissipation are collectively considered for the first time. A simplified procedure to couple the wave attenuation in the model is proposed. The results show that the model can remarkably improve the prediction accuracy of blockage percentage by reducing the errors from −9.0% to −4.2%. Moreover, the attenuation process of the pressure pulse wave is determined to consist of three stages. The effect of waveform distortion on amplitude mainly occurs in the second stage, when our proposed model shows an improved prediction. The performance of the proposed model will help the early warning of the blockage in the pipelines and effectively avoid the potential injury and financial loss.

中文翻译：

---

用于管道堵塞检测的压力脉冲波衰减模型耦合波形失真和粘性耗散

安全问题始终是石油和天然气运输设施中的主要问题。由于诸如气体水合物沉积之类的固体沉积，经常遇到设备损坏。快速有效地检测积聚的堵塞物的位置，长度和速率将大大有助于缓解潜在的风险。现有的大多数基于压力波的模型都难以正确预测由于波衰减的无知而导致的阻塞百分比。在目前的工作中，建立了一个衰减模型来描述气体中压力脉搏波的传输。首次综合考虑了非线性效应和粘性耗散对波形失真和吸收的影响。提出了在模型中耦合波衰减的简化程序。结果表明，该模型可以通过将误差从-9.0％降低到-4.2％来显着提高阻塞百分比的预测准确性。此外，确定压力脉搏波的衰减过程包括三个阶段。当我们提出的模型显示改进的预测时，波形失真对幅度的影响主要发生在第二阶段。所提出模型的性能将有助于管道堵塞的预警，并有效避免潜在的伤害和经济损失。当我们提出的模型显示改进的预测时，波形失真对幅度的影响主要发生在第二阶段。所提出模型的性能将有助于管道堵塞的预警，并有效避免潜在的伤害和经济损失。当我们提出的模型显示改进的预测时，波形失真对幅度的影响主要发生在第二阶段。所提出模型的性能将有助于管道堵塞的预警，并有效避免潜在的伤害和经济损失。