A Unified Model of Oil/Water Two-Phase Flow through the Complex Pipeline

Oil-water two-phase flow through the complex pipeline, consisting of varying pipes and fittings in series or parallel, is commonly encountered in the petroleum industry. However, the majority of the current study is mainly limited to single constant-radius pipe. In this paper, a unified model of oil...

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Main Authors: Qingchun Gao, Zhiming Wang, Quanshu Zeng
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2021/3756577
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author Qingchun Gao
Zhiming Wang
Quanshu Zeng
author_facet Qingchun Gao
Zhiming Wang
Quanshu Zeng
author_sort Qingchun Gao
collection DOAJ
description Oil-water two-phase flow through the complex pipeline, consisting of varying pipes and fittings in series or parallel, is commonly encountered in the petroleum industry. However, the majority of the current study is mainly limited to single constant-radius pipe. In this paper, a unified model of oil-water two-phase flow in the complex pipeline is developed based on the combination of pipe serial-parallel theory, flow pattern transformation criterion, two-fluid model, and homogenous model. A case is present to verify the unified model and compare with CFD results. The results show that the proposed unified model can achieve excellent performance in predicting both the flow distributions and pressure drops of oil-water two-phase flow in the complex pipeline. Compared with CFD results for water volumetric fractions ranging from 0% to 100%, the highest absolute percentage error of the proposed model is 14.4% and the average is 9.8%.
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publishDate 2021-01-01
publisher Wiley
record_format Article
series Geofluids
spelling doaj-art-0a846be968674e818e77cb7e8a66554f2025-08-20T02:03:12ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/37565773756577A Unified Model of Oil/Water Two-Phase Flow through the Complex PipelineQingchun Gao0Zhiming Wang1Quanshu Zeng2State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, ChinaOil-water two-phase flow through the complex pipeline, consisting of varying pipes and fittings in series or parallel, is commonly encountered in the petroleum industry. However, the majority of the current study is mainly limited to single constant-radius pipe. In this paper, a unified model of oil-water two-phase flow in the complex pipeline is developed based on the combination of pipe serial-parallel theory, flow pattern transformation criterion, two-fluid model, and homogenous model. A case is present to verify the unified model and compare with CFD results. The results show that the proposed unified model can achieve excellent performance in predicting both the flow distributions and pressure drops of oil-water two-phase flow in the complex pipeline. Compared with CFD results for water volumetric fractions ranging from 0% to 100%, the highest absolute percentage error of the proposed model is 14.4% and the average is 9.8%.http://dx.doi.org/10.1155/2021/3756577
spellingShingle Qingchun Gao
Zhiming Wang
Quanshu Zeng
A Unified Model of Oil/Water Two-Phase Flow through the Complex Pipeline
Geofluids
title A Unified Model of Oil/Water Two-Phase Flow through the Complex Pipeline
title_full A Unified Model of Oil/Water Two-Phase Flow through the Complex Pipeline
title_fullStr A Unified Model of Oil/Water Two-Phase Flow through the Complex Pipeline
title_full_unstemmed A Unified Model of Oil/Water Two-Phase Flow through the Complex Pipeline
title_short A Unified Model of Oil/Water Two-Phase Flow through the Complex Pipeline
title_sort unified model of oil water two phase flow through the complex pipeline
url http://dx.doi.org/10.1155/2021/3756577
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