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复杂管路油水两相流动的统一机理模型
赵麟,汪志明,曾泉树
1 胜利石油管理局博士后科研工作站,东营 257001 2 中国石油大学( 北京) 石油工程学院,北京 102249
A unified model of oil-water two-phase flow in a complex pipeline
ZHAO Lin, WANG Zhiming, ZENG Quanshu
1 Post-Doctoral Research Station of Shengli Petroleum Administration Bureau, Dongying 257001, China 2 College of Petroleum Engineering, China University of Petroleum-Beijing, Beijing 102249, China

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摘要  石油行业中的复杂管路通常由各种不同的管道和管件通过串联或并联组合而成,油水两相混合流动是其中最常见的流动形式。目前对复杂管路的研究主要局限于单一恒径管道。本文基于管路串并联理论、流型转变准则、双流体模型和均相流模型,建立了复杂管路油水两相流动的统一机理模型,通过实例对该模型进行了验证,并与数值模拟结果进行了比较。研究结果表明,该模型对油水两相在复杂管路中的分流情况和压降均表现出了良好的预测性,在体积含水率为 0%~100%条件下,模型预测的绝对平均偏差最高为 14.4%,总体平均偏差为 9.8%。
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关键词 : 复杂管路;油水两相;流型转变;机理模型;案例研究
Abstract

Oil-water two-phase flow in a complex pipeline, consisting of varying pipes and fittings in series/parallel, is commonly encountered in the petroleum industry. However, previous study has been mainly limited to a single constant-radius pipe. In this paper, a unified model of oil-water two-phase flow in a complex pipeline is developed based on the combination of pipe serial-parallel theory, flow pattern transformation criterion, two-fluid and homogenous models. A case is presented to verify the unified model and compare with CFD results. The results show that the unified model performs well in predicting both the flow distribution and pressure drops of oil-water two-phase flow in a complex pipeline. Compared with CFD results for water volumetric fractions ranging from 0% to 100%, the highest absolute percentage errors of the proposed model is 14.4% and the average is 9.8%.  

Key words: complex pipeline; oil-water two-phase; flow pattern transformation; mechanism model; case study
收稿日期: 2018-03-29     
PACS:    
基金资助:国家科技重大专项“胜利油田特高含水期提高采收率技术”(2016ZX05011) 资助
通讯作者: 赵麟 wellcompletion@126.com
引用本文:   
赵麟, 汪志明, 曾泉树. 复杂管路油水两相流动的统一机理模型. 石油科学通报, 2018, 04: 410-421
链接本文:  
ZHAO Lin, WANG Zhiming, ZENG Quanshu. A unified model of oil-water two-phase flow in a complex pipeline. Petroleum Science Bulletin, 2018, 04: 410-421. doi: 10.3969/j.issn.2096-1693.2018.04.037
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