Influence of hydrate formation on wax precipitation in subsea multiphase pipeline

被引：2

作者：

机构：

[1] College of Pipeline and Civil Engineering in China University of Petroleum

[2] CNPC Research Institute of Engineering Technology

来源：

Kou, J. (koujie@upc.edu.cn) | 2013年 / University of Petroleum, China卷 / 37期

关键词：

Hydrate; Pipeline; Thermodynamic phase equilibrium; Wax precipitation;

D O I：

10.3969/j.issn.1673-5005.2013.01.025

中图分类号：

学科分类号：

摘要：

Wax thermodynamic model and hydrate thermodynamic model were selected to study the influence of hydrate formation on wax precipitation. The results show that wax and hydrate may form in the subsea multi-phase pipeline at the lower environmental temperature. The formation of hydrate or wax will affect the thermodynamics and kinetics behavior of the other. On the thermodynamic side consideration, the hydrate formation will take away the light component in the system, which leads to the solubility of heavy component reduction, and makes the mole fraction of heavy component increase, and affects wax phase equilibrium. The influence of hydrate formation on wax precipitation depends on light component content, and the more the light component content, the greater the influence.

引用

页码：144 / 146+153

共 12 条

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