期刊
POWDER TECHNOLOGY
卷 404, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.powtec.2022.117496
关键词
Sand retention; Premium square mesh screen; Wire-wrapped screen; CFD-DEM; Retention model; Bridging mechanism
资金
- Australian Research Council (ARC)
This paper presents a comprehensive evaluation of premium square mesh screens, wire-wrapped screens, and modified wire-wrapped screens with converging slots. The results show that the premium square mesh screens outperform the wire-wrapped screens, and it is the best choice for achieving uniform sand retention modes and stable bridging.
Selecting a suitable sand screen type and size has been a challenge. This paper presents a comprehensive evalu-ation of premium square mesh screens (SMS), wire-wrapped screens (WWS), and modified wire-wrapped screens with converging slots (CSS). This is done by the combined approach of computational fluid dynamics (CFD) and discrete element method (DEM). The evaluation considers the sand production, retention mode, and bridging mechanism at different slot/pore-particle size ratios and solid concentrations. The results show that the SMS and CSS outperform the WWS, and the SMS is the best. The SMS is preferred in developing uniform sand retention modes and achieving stable bridging. The predicted flow and force structures are also analyzed. It is shown that a higher flow area in the SMS provides a better dispersed fluid flow path, resulting in relatively low and uniform fluid flow through pore openings and thus the formation of stable bridging.(c) 2022 Elsevier B.V. All rights reserved.
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