| 摘要: |
| 鉴于现有油气分离器效率较低,为改善高含气井中井下多相混抽泵或电潜泵机组效率低下的问题,选择雷诺 应力模型作为湍流模型,代数滑移混合模型作为多相流模型，对井下水力旋流油气分离器内的两相流场进行了数值 模拟。通过数值计算得到了两相介质等浓度分布图和轴向速度矢量图,并将数值计算结果与同结构的水力旋流油 气分离器样机的室内模拟试验结果进行了对比。研究结果表明，数值计算得到的各种图完全符合已知的旋流器流 场分布规律。水力旋流器经过结构优化设计不仅可以进行井下油气分离，且分离效果较好,适用于较大流量和高含 气率的油井条件。 |
| 关键词: 油气分离 水力旋流器 分离效率 数值模拟 |
| DOI： |
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| 基金项目:中国石油天然气股份有限公司科技风险创新基金资助项目(050511-6-2) |
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| Numerical simulation of flow Held in downhole hydrocyclone oil-gas separator |
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ZHAO Huan-qing1,LI Zeng-liang2,SUN Hao-yu3
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(1.Scientyic and Technological Company in China University of Petroleurn Dongying 257061，bhandong Province，Ckina;2. College of Mechanical and Electronic Engineering in China University of Petroleum f Dongying 257061, Shandong Province, China;3. Drilling Technology Research Institute，Shengli Petroleum Admmistraswri Bureau, Dongying 257017，Shandong Province，China)
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| Abstract: |
| As the efficiency of the current oil-gas separators is very low， and to improve the efficiency of downhole multiphase pump or electrical submersible pumping unit in high gas-content wells, the numerical simulation was studied on the two-phase flow in downhole hydpocyclone oil-gas separator. Meanwhile，the Reynolds stress model was chosen as turbulence model and the algebraic slip model was chosen as multiphase flow model. With the numerical calculation，the two phase media equocon-centration distribution map and die axial velocity ventogrph were obtained and proved to completely accord with the flow field distribution in cyckwie- A contrast between the numerical simulated result and the result of pre-industrial prototype which has the same structure was carried on. The results show that the optimized hydrocyclone oil-gas separator not only runs weU but also possesses good separating perfonnance，and can satisfy the requirement of high flux and high GOR wells. |
| Key words: oil-gas separation hydiocyclonei separation efficiency numerical simulation |
