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[1]裴卓胜.兰成原油管道掺混增输工艺优化[J].油气储运,2024,43(12):1-12.
　Pei Zhuosheng.Lancheng crude oil pipeline blending transportation process optimization[J].Oil & Gas Storage and Transportation,2024,43(12):1-12.
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兰成原油管道掺混增输工艺优化

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 43 期数: 2024年12期 页码: 1-12 栏目: 出版日期: 2024-12-25
Title:
Lancheng crude oil pipeline blending transportation process optimization
作者:
裴卓胜
Author(s):
Pei Zhuosheng
关键词:
兰成原油管道; 掺混输送; 增输; 掺混比例; 停输再启动
Keywords:
lanzhou-chengdu crude oil pipeline;  mixing transportation;  increasing transmission;  mixing ratio;  shutdown and restart
分类号:
TE88
文献标志码:
A
摘要:
【目的】随着四川石化对长庆原油需求量的急剧增长，兰成原油管道现行的掺混长庆原油输送工艺面临严峻挑战，传统的输送方式难以满足下游炼厂日益增长的需求，但兰成原油管道掺混输送极为复杂，单纯改变掺混比例并非解决之道。【方法】系统剖析了兰成原油管道当前掺混输送的现状，深入探讨了制约掺混量进一步提升的关键因素，主要包括油品物性变化、管道结蜡倾向加剧及停输再启动难度增加等。基于大量运行数据与油品配比实验，详细阐述了针对兰成原油管道全年掺混输送的优化策略，重点分析了掺混后油品凝点控制、掺混比例优化、搅拌工艺改进以及清管作业效率提升等方面的具体措施，并提出了详尽的优化方案。此外，为了探索在保障安全运行的前提下掺混量的最大可提升空间，对加热输送工艺的安全性及停输再启动策略进行了科学论证。【结果】全面深入评估了掺混增输对管道运行安全的潜在影响，通过年输量的预测与掺混比例精细调控，计算得出长庆原油全年可掺混输送量的最大理论边界为300×104 t，为兰成原油管道的实际运行管理提供了重要的数据支持。【结论】研究成果不仅有助于兰成原油管道运行效率与能力的显著提升，还可为今后掺混输送计划的制定提供宝贵的实践经验与理论依据。
Abstract:
 [Objectives] With the rapid growth of Sichuan Petrochemical 's demand for Changqing crude oil, the current blending Changqing crude oil transportation process of Lanzhou-Chengdu crude oil pipeline is facing severe challenges. The traditional transportation method is difficult to meet the growing demand of downstream refineries. However, the blending transportation of Lanzhou-Chengdu crude oil pipeline is extremely complex. Simply changing the blending ratio is not the solution. It is necessary to comprehensively and deeply evaluate the potential impact of blending and increasing transportation on pipeline operation safety, so as to formulate effective optimization measures. [Method] The current situation of blending transportation was systematically analyzed, and the key factors restricting the further improvement of blending volume were discussed in depth, including the change of oil physical properties, the increase of pipeline wax deposition tendency and the increase of difficulty in shutdown and restart. Based on a large number of operation data and oil ratio experiments, the optimization strategy for the annual blending transportation of Lancheng crude oil pipeline is elaborated in detail. The specific measures of oil condensation point control, blending ratio optimization, mixing process improvement and pigging operation efficiency improvement after blending are analyzed, and a detailed optimization scheme is proposed. In addition, in order to explore the maximum room for improvement of the blending amount under the premise of ensuring safe operation, the safety of the heating and conveying process and the shutdown and restart strategy were scientifically demonstrated.[ Result ] Through comprehensive annual throughput prediction and fine regulation of blending ratio, the theoretical boundary of the maximum blending throughput of nearly 300×104 t of Changqing crude oil in the whole year was calculated, which provided important data support and decision-making reference for the actual operation and management of Lanzhou-Chengdu crude oil pipeline. [Conclusion] The research results not only contribute to the significant improvement of the operation efficiency and capacity of Lanzhou-Chengdu Crude Oil Pipeline, but also provide valuable practical experience and theoretical basis for the formulation of future blending transportation plans.

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更新日期/Last Update: 2024-09-27