气液混输管道水合物冻堵模拟及解堵方案研究
Study on Simulation and Solution of Hydrate Freezing Blockage in Gas-liquid Mixed Transport Pipeline
刘志明 1王恒 1杨耀辉 1庞文彬 1唐志 1唐鑫2
作者信息
- 1. 中国石油化工股份有限公司西北油田分公司,新疆 乌鲁木齐 830011;中国石化缝洞型油藏提高采收率重点实验室,新疆 乌鲁木齐 830011
- 2. 西南石油大学石油与天然气工程学院,四川 成都 610500
- 折叠
摘要
文章针对气液混输管道气体携液能力较弱、低洼处积液较多,使管道生成水合物风险增加,管道输送效率降低的问题,采用OLGA软件对处于沙漠环境中的从 1 号阀室到分输站之间的管线的水合物形成风险部位进行定量计算,得出了甲醇抑制剂的浓度要求.基于分析结果提出了"加注水合物抑制剂+清管器推送甲醇段塞化冻/全面清除积液"的解堵工艺,为混输管道地解堵提供了可靠的理论和技术支撑.
Abstract
Aiming at the problems that the gas carrying capacity of the gas-liquid mixed transport pipeline is weak and the accumulation of liquid in low-lying areas increases the risk of hydrate formation in the pipeline and reduces the pipeline transportation efficiency,the paper uses OLGA software to quantitatively calculate the risk parts of hydrate formation in the pipeline from the No.1 valve chamber to the sub-delivery station in the desert environment,and obtains the concentration requirements of methanol inhibitors.Based on the analysis results,the plugging removal process of"adding hydrate inhibitor+pig pushing methanol slug to defreeze/removing liquid comprehensively"is proposed,which provides reliable theoretical and technical support for plugging removal of mixed transport pipeline.
关键词
水合物冻堵/清管工艺/OLGA模拟/甲醇加注/混输管道/石油化工Key words
hydrate blocking/pigging process/olga simulation/methanol filling/mixed-transport pipeline/petrochemical industry引用本文复制引用
出版年
2024
NETL
NSTL
万方数据