求解油井中的两相流

IF 1.1 4区地球科学 Q3 ASTRONOMY & ASTROPHYSICS

Geophysical and Astrophysical Fluid Dynamics Pub Date : 2019-11-05 DOI:10.1080/03091929.2019.1682568

Victoria Pereira, A. Fowler

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引用次数: 1

摘要

油井中含有两相的液体和气体混合物，由于压力梯度而向上驱动。在本文中，我们研究了垂直上升流的双流体模型，并明确地解释了当压力沿井减小时溶解气体的溶解。我们发现溶解气体浓度的亨利定律预示着泡沫的快速转变，这与直觉相反。为了研究可以避免这种快速转变的方法，我们通过在两相模型中结合成核和气泡生长动力学来检查速率限制非平衡动力学。

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Exsolving two-phase flow in oil wells

ABSTRACT Oil wells contain two-phase liquid and gas mixtures driven upwards due to a pressure gradient. In this paper, we study a two-fluid model for vertical upwelling flow and explicitly account for the exsolution of the dissolved gas as the pressure decreases along the well. We find that the application of Henry's law for the dissolved gas concentration predicts a rapid transition to a foam, which runs counter to intuition. In order to study ways in which this rapid transition could be avoided, we examine rate limiting non-equilibrium dynamics by incorporating nucleation and bubble growth dynamics in the two-phase model.

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来源期刊

Geophysical and Astrophysical Fluid Dynamics 地学天文-地球化学与地球物理

CiteScore

3.10

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Geophysical and Astrophysical Fluid Dynamics exists for the publication of original research papers and short communications, occasional survey articles and conference reports on the fluid mechanics of the earth and planets, including oceans, atmospheres and interiors, and the fluid mechanics of the sun, stars and other astrophysical objects. In addition, their magnetohydrodynamic behaviours are investigated. Experimental, theoretical and numerical studies of rotating, stratified and convecting fluids of general interest to geophysicists and astrophysicists appear. Properly interpreted observational results are also published.