基于Fluent分层注水工具过桥短节的压力损失数值模拟

Numerical Simulation of Pressure Loss of Crossing Bridge Short Joints of Layered Water Injection Tool Based on Fluent

张立刚 娄绢平 温晓红 陈喜田 刘照义 孙道坤 谭甲兴

Ligang Zhang Juanping Lou Xiaohong Wen Xitian Chen Zhaoyi Liu Daokun Sun Jiaxing Tan

东北石油大学 石油工程学院，黑龙江 大庆 163318 中国石油集团科学技术研究院有限公司，北京 100083

School of Petroleum Engineering，Northeast Petroleum University，Daqing Heilongjiang 163318，China CNPC Research Institute of Science and Technology Co. ，Ltd. ，Beijing 100083，China

分层注水工具是分层注水系统中的核心部件，对分层注水开发具有十分重要的意义。为研究不同管道粗糙度、不同流量对分层注水工具过桥短节摩阻压耗的影响，利用Fluent软件进行模拟分析。结果表明，分层注水工具过桥短节流量为500~2 000 m3/d工况下，外管压耗为 1.90×104~6.16×105 ?Pa，内管压耗为 3.61×105~4.03×106?Pa；当粗糙度不变时，液体流量越大，引起的局部阻力越大，引起的分层注水工具摩阻压耗越大，管道粗糙度对摩阻压耗的影响较小,可以忽略不计。以上研究结果为新分层注水管道设计及参数的选择提供了依据。

Layered water injection tool is the core part of layered water injection system,which is of great significance to the development of layered water injection technique.In order to study the influence of different pipeline roughness and flow rate on friction and pressure consumption of crossing bridge short joints of layered water injection tools,Fluent software is used.The simulation results show that the flow rate of crossing bridge short joints of layered water injection tool is 500~2 000 m3/d,the pressure consumption range of the outer pipe is 1.90×104~6.61×105 Pa,and the pressure consumption of the inner pipe is 3.61×105~4.03×106 Pa.When the roughness is constant,the larger the liquid flow would induce greater the local resistance and the greater the friction pressure consumption of the layered water injection tool.The effect of pipeline roughness on friction and pressure loss is small and can be ignored.The above research results can provide the basis for the design and parameter selection of the new layered water injection pipeline.

龙江英才培育计划(15011030105);省级优秀青年人才计划(15041260518)

10.3969/j.issn.1006-396X.2021.06.010