水下采油树本体内生产流道流动性数值模拟分析  

Numerical Simulation Analysis of Flow Characteristic of the Production Channel in Subsea Tree Body

作　　者：刘兴铎 祝贺[1,2] 周发学[1] 李中华[1,2] 严金林[1,2] 

机构地区：[1]宝鸡石油机械有限责任公司,陕西宝鸡721002 [2]国家油气钻井装备工程技术研究中心,陕西宝鸡721002

出　　处：《石油矿场机械》2016年第3期54-57,共4页Oil Field Equipment

基　　金：国家高技术研究发展计划(863计划)"水下卧式采油树系统研制"(2012AA09A204)

摘　　要：水下采油树内部管道是海洋油气生产通道,具有多次转向、变径的特点,生产流道内流体流动十分复杂。建立了水下采油树本体内部管道流体域模型,采用CFD流场分析软件,以速度入口、压力出口、光滑壁面为边界条件,分析不同输出管道夹角α、不同尺寸的输出管道对本体生产流道内流体运动特性的影响。分析结果表明,当生产流道内流体的流向发生变化时,近壁面处产生较高的流速,严重冲蚀管壁;合理尺寸的输出管道可以获得均匀的流体,避免产生较大的压力降。该研究结果可为设计水下采油树的生产流道提供参考。The inner channel of the subsea tree is the oil and gas outflow channel for the subsea well with the characters of multiple turning and multiple mutation of the tube diameters.So the flow in the production channel is full of complexity.The inner flow domain in the subsea tree body was set up in the essay.Based on the velocity inlet,pressure outlet and smooth wall boundary condition,through CFD software,to analyze the influence on flow in the production path with different angles and various diameters of the outlet channel.The results show when the flow in the production channel is changing,the maximum velocity is near the wall,resulting in serious erosion of wall.The proper diameter of outflow channel could produce steady flow and avoid great pressure drop.The research result could provide the reference to production channel design of the Subsea tree.

关 键 词：水下 采油树 生产流道 流动性 数值模拟 CFD 

分 类 号：TE952[石油与天然气工程—石油机械设备]