起伏天然气管道干空气法干燥时间预测模型

TE973; 准确预测起伏管道干燥时间可保障管道低洼处残余水干燥彻底,避免投产后天然气含水量超标.通过建立起伏天然气管道干空气法干燥时间预测模型,引入低洼处积液量与表面积的几何关系模型,对低洼处积液量及表面积随干燥时间的变化规律进行准确描述,并通过室内实验分别验证了连续吹扫过程及封堵过程的准确性.选取某标段现场大口径起伏天然气管道进行干燥模拟,结果表明:起伏管道干燥时干空气露点不宜低于-40℃,流速不宜高于6 m/s,均匀水膜从前向后逐渐被干燥,管道后端低洼处残余水最后被干燥.研究成果提高了起伏天然气管道干燥时间的预测精度,可对起伏天然气管道干燥方案设计及干燥施工过程提供指导....

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Published in油气储运 Vol. 41; no. 8; pp. 972 - 979
Main Authors 卫续, 吕晓阳, 田鑫地, 李自力
Format Journal Article
LanguageChinese
Published 国家管网集团油气调控中心%中国石油广东石化公司%中国石油大学(华东)储运与建筑工程学院 01.08.2022
Subjects
干空气干燥
起伏天然气管道
时间预测
低洼处存水
Online AccessGet full text
ISSN1000-8241
DOI10.6047/j.issn.1000-8241.2022.08.013

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Abstract TE973; 准确预测起伏管道干燥时间可保障管道低洼处残余水干燥彻底,避免投产后天然气含水量超标.通过建立起伏天然气管道干空气法干燥时间预测模型,引入低洼处积液量与表面积的几何关系模型,对低洼处积液量及表面积随干燥时间的变化规律进行准确描述,并通过室内实验分别验证了连续吹扫过程及封堵过程的准确性.选取某标段现场大口径起伏天然气管道进行干燥模拟,结果表明:起伏管道干燥时干空气露点不宜低于-40℃,流速不宜高于6 m/s,均匀水膜从前向后逐渐被干燥,管道后端低洼处残余水最后被干燥.研究成果提高了起伏天然气管道干燥时间的预测精度,可对起伏天然气管道干燥方案设计及干燥施工过程提供指导.
AbstractList TE973; 准确预测起伏管道干燥时间可保障管道低洼处残余水干燥彻底,避免投产后天然气含水量超标.通过建立起伏天然气管道干空气法干燥时间预测模型,引入低洼处积液量与表面积的几何关系模型,对低洼处积液量及表面积随干燥时间的变化规律进行准确描述,并通过室内实验分别验证了连续吹扫过程及封堵过程的准确性.选取某标段现场大口径起伏天然气管道进行干燥模拟,结果表明:起伏管道干燥时干空气露点不宜低于-40℃,流速不宜高于6 m/s,均匀水膜从前向后逐渐被干燥,管道后端低洼处残余水最后被干燥.研究成果提高了起伏天然气管道干燥时间的预测精度,可对起伏天然气管道干燥方案设计及干燥施工过程提供指导.
Author 卫续
李自力
吕晓阳
田鑫地
AuthorAffiliation 国家管网集团油气调控中心%中国石油广东石化公司%中国石油大学(华东)储运与建筑工程学院
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WEI Xu
TIAN Xindi
LI Zili
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起伏天然气管道
时间预测
低洼处存水
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Title 起伏天然气管道干空气法干燥时间预测模型
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