高压大直径天然气-凝析液管流计算模型

doi:10.3969/j.issn.0438-1157.2013.09.003

化工学报 ›› 2013, Vol. 64 ›› Issue (9): 3096-3101.DOI: 10.3969/j.issn.0438-1157.2013.09.003

高压大直径天然气-凝析液管流计算模型

邓道明¹, 董勇², 涂多运^1,2, 张强³, 宫敬¹, 李清平⁴

1. 中国石油大学(北京)油气管道输送安全国家工程实验室/城市油气输配技术北京市重点实验室, 北京 102249;
2. 中国石油集团工程设计有限责任公司西南分公司, 四川成都 610041;
3. 中国国际石油化工联合有限责任公司, 北京 100027;
4. 中海油研究总院, 北京 100027

收稿日期:2013-01-09 修回日期:2013-03-13 出版日期:2013-09-05 发布日期:2013-09-05
通讯作者: 邓道明(1965- ),男,博士,副教授
作者简介:邓道明(1965- ),男,博士,副教授。
基金资助:
国家科技重大专项子课题项目(2011ZX05026-004-03);国家自然科学基金重点项目(51134006)。

Modeling of gas-condensate flow in high pressure and large diameter pipelines

DENG Daoming¹, DONG Yong², TU Duoyun^1,2, ZHANG Qiang³, GONG Jing¹, LI Qingping⁴

1. National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum, Beijing 102249, China;
2. China Petroleum Engineering Co., Ltd.Southwest Company, Chengdu 610041, Sichuan, China;
3. China International United Petroleum & Chemicals Co., Ltd, Beijing 100027, China;
4. China National Offshore Oil Corporation Research Institute, Beijing 100027, China

Received:2013-01-09 Revised:2013-03-13 Online:2013-09-05 Published:2013-09-05
Supported by:
supported by the National Natural Science Foundation of China(51134006).

摘要/Abstract

摘要： 前人提出的平界面和曲界面模型大多是基于低压、小管径、水平或接近水平管道空气-水条件的实验数据得来的,如何选择长距离、高压、大直径、起伏地形天然气-凝析液管道水力计算模型是一个需要研究的问题。针对高压、大直径、起伏地形条件下的天然气-凝析液混输管线,运用相态与物性、水力、热力耦合的计算方法对分离流的气-液平界面和曲界面机理模型进行了适用性比较研究。将平界面和曲界面模型下的几何关系和摩阻系数计算相关式运用于实际的高压天然气-凝析液长距离地形起伏管道中,对比水力热力计算结果与实际生产数据,认为平界面模型较曲界面模型能更准确地预测高压、大直径天然气-凝析液两相流管线的压降和积液量。

关键词: 天然气-凝析液, 分离流, 平界面, 曲界面, 机理模型

Abstract: The flat and curved interface models for gas-liquid separated flows in pipes are developed mostly from air-water flow experiments in low pressure,small diameter,horizontal or nearly horizontal pipes,which may not be suitable for high pressure,large diameter and undulating natural-gas-condensate pipelines.By use of methods for phase behavior and physical properties and coupled thermo-hydraulic computations,the suitability of these two mechanistic separated flow models to gas-condensate flow in long-distance,high-pressure,large-diameter and undulating pipelines was studied.Different combinations of friction factor correlations for the flat and curved interface models were embedded in thermo-hydraulic computations of an actual high-pressure,large-diameter,undulating natural-gas-condensate long-distance pipeline.The computational results of pressure drops and accumulated liquid contents for the flat gas-liquid interface model in this study agreed better with the field operating data than the curved interface model.

Key words: gas-condensate, separated flow, flat interface, curved interface, mechanistic modeling

中图分类号:

TE86
TE83

邓道明, 董勇, 涂多运, 张强, 宫敬, 李清平. 高压大直径天然气-凝析液管流计算模型[J]. 化工学报, 2013, 64(9): 3096-3101.

DENG Daoming, DONG Yong, TU Duoyun, ZHANG Qiang, GONG Jing, LI Qingping. Modeling of gas-condensate flow in high pressure and large diameter pipelines[J]. CIESC Journal, 2013, 64(9): 3096-3101.

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高压大直径天然气-凝析液管流计算模型

Modeling of gas-condensate flow in high pressure and large diameter pipelines

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