| 摘要: |
| 针对蒸汽辅助重力泄油（SAGD）双管热采井口装置内冲蚀磨损严重问题，研究冲蚀磨损的影响因素。采用正交试验设计对SAGD井口装置进行流体动力学模拟和优化设计，应用ANSYS软件中FSI （fluid-structure interaction）单向流固耦合模块，对正交优化设计试验进行轴向速度、径向速度、全域最大磨损率及壁面剪切应力模拟，判定井口装置中冲蚀破坏的危险区域。结果表明：入口端速度为0.1 m/s，颗粒粒度为0.125 mm，过渡圆角半径为8 mm，管壁壁厚为21.8 mm，管材种类取35CrMo基体与WC-12Co涂层。优化方案使多相流体减轻了对井口管壁的冲蚀磨损作用。 |
| 关键词: SAGD井口 冲蚀磨损 流固耦合 仿真分析 优化设计 |
| DOI：10.3969/j.issn.1673-5005.2018.03.015 |
| 分类号:TE832 |
| 文献标识码:A |
| 基金项目:江苏省产学研联合创新资金（产学研前瞻性联合研究）项目（BY2012094） |
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| Erosion wear resistance of double thermal recovery wellheads |
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PEI Junfeng1, WANG Bing1, YIN Shunshi2, QIN Zhijian2, SHAO Jinhai2, XU Yanhai2
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(1.College of Mechanical Engineering, Changzhou University, Changzhou 213016, China;2.Jiangsu Jinshi Machinery Group Limited Company, Jinhu 211600, China)
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| Abstract: |
| In face of serious erosion problems in the steam assisted gravity drainage(SAGD) wellhead in the double thermal recovery, the influence factors of erosion wear are analyzed. By using the orthogonal test design, we perform CFD simulation and optimization to the SAGD wellhead. In use of the FSI (fluid-structure interaction) single-phase fluid-solid coupling module in ANSYS, the maximum axial velocity, radial velocity, global maximum wear rate and wall shearing stress were simulated for the orthogonal test, and the danger zone caused by the erosion damage in the wellhead equipment was judged. The results show that the optimized parameters are the inlet velocity of 0.1 m/s, particle size of 0.125 mm, transition radius of 8 mm, wall thickness of 21.8 mm, and the pipe materials are selected as 35CrMo for the matrix and WC-12Co for the coating. The optimization scheme of the multiphase fluid reduces the erosion effect on the wellhead pipe wall. |
| Key words: SAGD wellhead erosion wear fluid solid interaction simulation analysis optimal design |
