埋地热油管道正反输温降影响因素分析
Analysis of the Temperature Drop Influence Factors During the Process of Forward and Reverse Pumping of Buried Hot Oil Pipeline Based on SPS
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- 引用格式:
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金钰昕,姚安林,周刚,刘杨,吴宏雷.埋地热油管道正反输温降影响因素分析[J].天然气与石油,2018,36(4):0.doi:
Jin Yuxin , Yao Anlin , Zhou Gang , Liu Yang , Wu Honglei.Analysis of the Temperature Drop Influence Factors During the Process of Forward and Reverse Pumping of Buried Hot Oil Pipeline Based on SPS [J].Natural Gas and Oil,2018,36(4):0.doi:
- DOI:
- 作者:
- 金钰昕1,2 姚安林1 周 刚3 刘 杨4 吴宏雷3
Jin Yuxin1 , Yao Anlin1 , Zhou Gang2 , Liu Yang3 , Wu Honglei2
- 作者单位:
- 1. 西南石油大学石油与天然气工程学院, 2. 中国石油工程建设有限公司西南分公司,3. 中国电建集团山东电力建设有限公司4. 中国石化胜利油田石油开发中心有限公司
1. College of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, China 2. SEPCO Electric Power Construction Corporation, Jinan, Shandong, 250014, China 3. Petroleum Development Center Co., Ltd., Sinopec Shengli Oilfield
- 关键词:
- 正反输;非稳态;温降分析
Hot oil; Forward and reverse pumping; Unsteady state; Analysis of temperature drop
- 摘要:
- 将正反输非稳态过程进行合理的简化假设,建立正反输非稳态计算物理模型。在验证正输稳态运行具有一定可靠性和准确性的基础上,对反输稳态运行时的温降进行求解,得出的正反输工艺温度变化对正确、合理、安全地制定反输方案具有重要的指导作用。创新性地将反输温降过程分为反输初始阶段、冷油头控制阶段、热油头控制阶段和反输温降稳定阶段四个阶段,详细地分析了出站油温、反输输量、埋地温度及管径在四个阶段中对反输温降的影响。结果表明,增大反输输量对正反稳态运行具有最积极的影响,在夏季进行反输更易实现,采用小管径管道进行反输,达到稳定所需时间较短,进而为以后更合理地安排正反输方案提供一定依据。
The non-steady state heat transfer calculation model for forward and reverse pumping is established according to reasonable simplified assumption in this paper.Then solve the temperature drop in the reverse transportation on the basis of verifying the reliability and accuracy of steady-state operation in forward transportation.Innovatively, the reverse transportation temperature drop process can be divided into initial stage of reverse transmission, control stage of cold oil head, control stage of hot oil head, and steady stage of reverse transportation temperature drop.Detailed analysis on the effect of outlet temperature, reverse flow rate, buried temperature and pipe diameteron the temperature drop in the four stages has been performed.The results shows that increasing the reverse flow has the most positive effect on the forward and reverse pumping, and that it is easier to execute the reverse transportation in the summer.The use of small-diameter pipelines for reverse transportation will take a relatively short time to reach steady stage.This result will provide certain basis for more rational arrangements for forward and reverse transportation plans in the future.