Abstract Solid particles entrained in produced gas cause erosive damage in production and transportation facilities, that may eventually impact any process safety. The main purpose of this research is to determine the point on the Standalone screen (SAS) surface, where erosion rate is critical and to evaluate the uncertainties in the calculations and predictions of sand screen erosion utilizing CFD numerical simulation. A k-epsilon model was implemented to solve gas flow behavior and Discrete Phase Model (DPM) was used to track solid particles. The results of DPM were then introduced to conduct erosion simulation on the SAS utilizing four erosion equations. A full presentation of particle velocity vectors, particle velocity streamlines, total pressure contours and wall shear stress contours on the screen surface are presented and discussed. Additionally, the particle traces and path-lines are also demonstrated based on particles residence time as part of the particles’ trajectories. The erosion rates and erosion patterns from the four erosion equations, have shown similarities in their response to the change of sand characteristics. Considering the change in solid particles properties, a good agreement between CFD predictions and published data is achieved. This research can be used as a basis to offer safe operating guidelines for wells that are completed using standalone sand screens (SAS).

中文翻译：

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气砂流对独立砂筛管侵蚀的CFD数值模拟

摘要 产出气中夹带的固体颗粒会对生产和运输设施造成侵蚀性破坏，最终可能影响任何过程安全。本研究的主要目的是确定独立筛管 (SAS) 表面上侵蚀率至关重要的点，并评估利用 CFD 数值模拟计算和预测砂筛管侵蚀的不确定性。使用 k-epsilon 模型来求解气体流动行为，并使用离散相模型 (DPM) 来跟踪固体颗粒。然后引入 DPM 的结果，利用四个侵蚀方程对 SAS 进行侵蚀模拟。呈现并讨论了粒子速度矢量、粒子速度流线、总压力等值线和筛面上的壁面剪应力等值线的完整介绍。此外，还根据作为粒子轨迹一部分的粒子停留时间来演示粒子轨迹和路径线。来自四个侵蚀方程的侵蚀速率和侵蚀模式在它们对沙子特征变化的响应方面表现出相似性。考虑到固体颗粒特性的变化，CFD 预测和公布的数据之间实现了良好的一致性。这项研究可用作为使用独立砂筛管 (SAS) 完井的井提供安全操作指南的基础。考虑到固体颗粒特性的变化，CFD 预测和公布的数据之间实现了良好的一致性。这项研究可用作为使用独立砂筛管 (SAS) 完井的井提供安全操作指南的基础。考虑到固体颗粒特性的变化，CFD 预测和公布的数据之间实现了良好的一致性。这项研究可用作为使用独立砂筛管 (SAS) 完井的井提供安全操作指南的基础。