SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (2): 369-377.DOI: 10.1016/j.cjche.2019.07.024

• Fluid Dynamics and Transport Phenomena • Previous Articles     Next Articles

Hydrate formation in oil-water systems: Investigations of the influences of water cut and anti-agglomerant

Guangchun Song, Yuxing Li, Wuchang Wang, Kai Jiang, Zhengzhuo Shi, Shupeng Yao   

  1. Shandong Province Key Laboratory of Oil-Gas Storage and Transportation Safety, China University of Petroleum, Qingdao 266580, China
  • Received:2018-09-22 Revised:2019-06-12 Online:2020-05-21 Published:2020-02-28
  • Contact: Wuchang Wang
  • Supported by:
    This work was supported by Shandong Provincial Natural Science Foundation, China (Grant No. ZR2017MEE057), the Fundamental Research Funds for the Central Universities (14CX02207A, 17CX05006, 17CX06017) and the Graduate Innovation Project of China University of Petroleum (East China) (YCX2017062), which are gratefully acknowledged.

Hydrate formation in oil-water systems: Investigations of the influences of water cut and anti-agglomerant

Guangchun Song, Yuxing Li, Wuchang Wang, Kai Jiang, Zhengzhuo Shi, Shupeng Yao   

  1. Shandong Province Key Laboratory of Oil-Gas Storage and Transportation Safety, China University of Petroleum, Qingdao 266580, China
  • 通讯作者: Wuchang Wang
  • 基金资助:
    This work was supported by Shandong Provincial Natural Science Foundation, China (Grant No. ZR2017MEE057), the Fundamental Research Funds for the Central Universities (14CX02207A, 17CX05006, 17CX06017) and the Graduate Innovation Project of China University of Petroleum (East China) (YCX2017062), which are gratefully acknowledged.

Abstract: To investigate the characteristics of hydrate formation in oil-water systems, a high-pressure cell equipped with visual windows was used where a series of hydrate formation experiments were performed from natural gas + diesel oil + water systems at different water cuts and anti-agglomerant concentrations. According to the temperature and pressure profiles in test experiments, the processes of hydrate formation under two kinds of experimental procedures were analyzed first. Then, based on the experimental phenomena observed through the visual windows, the influences of water cut and anti-agglomerant on the places of hydrate formation and distribution, hydrate morphologies and hydrate morphological evolvements were investigated. Hydrate agglomeration, hydrate deposition and hydrate film growth on the wall were observed in experiments. Furthermore, three different mechanisms for hydrate film growth on the wall were identified. In addition, the influences of water cut and anti-agglomerant on the induction time of hydrate formation were also studied.

Key words: Hydrates, Formation, Oil-water system, Water cut, Anti-agglomerant

摘要: To investigate the characteristics of hydrate formation in oil-water systems, a high-pressure cell equipped with visual windows was used where a series of hydrate formation experiments were performed from natural gas + diesel oil + water systems at different water cuts and anti-agglomerant concentrations. According to the temperature and pressure profiles in test experiments, the processes of hydrate formation under two kinds of experimental procedures were analyzed first. Then, based on the experimental phenomena observed through the visual windows, the influences of water cut and anti-agglomerant on the places of hydrate formation and distribution, hydrate morphologies and hydrate morphological evolvements were investigated. Hydrate agglomeration, hydrate deposition and hydrate film growth on the wall were observed in experiments. Furthermore, three different mechanisms for hydrate film growth on the wall were identified. In addition, the influences of water cut and anti-agglomerant on the induction time of hydrate formation were also studied.

关键词: Hydrates, Formation, Oil-water system, Water cut, Anti-agglomerant