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

Qingchun Gao | Zendy; Zhiming Wang | Zendy; Quanshu Zeng | Zendy

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

Author(s) -

Qingchun Gao,

Zhiming Wang,

Quanshu Zeng

Publication year - 2021

Publication title -

geofluids

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.44

H-Index - 56

eISSN - 1468-8123

pISSN - 1468-8115

DOI - 10.1155/2021/3756577

Subject(s) - pipeline (software) , pipeline transport , flow (mathematics) , petroleum engineering , computational fluid dynamics , two phase flow , mechanics , radius , phase (matter) , computer science , pressure drop , flow coefficient , environmental science , geology , physics , environmental engineering , computer security , quantum mechanics , programming language

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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