输气管道水合物预测模型及防治研究现状

Study on the Forecasting Model and Control of Hydrate in Gas Pipelines

石油天然气工业中普遍存在天然气水合物,油气企业为此付出的代价十分巨大,因此研究成熟的水合物的预测与防治技术迫在眉睫。总结了现今国际上的水合物热力学预测模型并评价其精准度;详细阐述了动力学预测模型的原理和类型,提出今后应结合热力学和动力学来综合建模才能准确预测,最后介绍了水合物防治措施的发展与不足。并对未来研究重点提出建议。

There is a widespread risk of natural gas hydrate in today＇s oil and gas industry, and oil and gas enterprises have to pay great cost for treating it, so the research of mature technology on hydrate forecasting and control is eagerly needed. In this paper, current natural gas hydrate thermodynamics forecast models were systematically summarized, and their accuracies were evaluated; and the principles and types of the kinetic forecast models were described in detail. At the same time, it＇s pointed out that we should combine both thermodynamics and dynamics to propose new more accurate model. Finally, the development and deficiency of hydrate control measures were introduced, and recommendations for future research were put forward.