一种切向入口倒锥式旋流器最大磨蚀率方程模型的构建  

Construction of the Maximum Erosion Rate Equation Model of an Inverted Cone Hydrocyclone with Tangential Inlet

作　　者：裴金源 张勇[1] 胡卫 宋晶鑫 PEI Jinyuan;ZHANG Yong;HU Wei;SONG Jinxin(School of Mechanical Science and Engineering, Northeast Petroleum University, Heilongjiang Daqing 163318, China;Wuhan Meilite Communications Co., Ltd, Hubei Wuhan 430000, China;The Fifth Oil Production Plant of Daqing Oilfield Company Limited, Heilongjiang Daqing 163318, China)

机构地区：[1]东北石油大学机械科学与工程学院,黑龙江大庆163318 [2]武汉迈力特通信有限公司,湖北武汉430000 [3]大庆油田有限责任公司第五采油厂,黑龙江大庆163318

出　　处：《北京石油化工学院学报》2022年第2期17-23,34,共8页Journal of Beijing Institute of Petrochemical Technology

基　　金：国家高技术研究发展计划项目(2012AA061303);东北石油大学培育基金项目(NEPUPY-1-15)。

摘　　要：同井注采系统分离器使用的切向入口倒锥式旋流器在井下含砂条件下使用时,固相砂粒会对壁面产生磨蚀作用,从而破坏壁面质量,影响流动状态,降低分离效果,影响使用寿命。为探究固相颗粒对切向入口倒锥式旋流器壁面的磨蚀规律,采用DPM模型对其进行仿真,获得了切向入口倒锥式旋流器最大磨蚀率的主要影响因素,基于响应面方法对磨蚀效果影响显著的因素进行响应分析,形成壁面最大磨蚀率的多元回归拟合方程模型。结果表明:井下切向入口倒锥式旋流器在含砂井液作用下,入口及圆柱段区域受固相颗粒进液流速、固相颗粒浓度和固相颗粒粒径的影响显著;基于响应面法构建的壁面最大磨蚀率的多元回归拟合方程模型的预测性良好,相关系数R-Squared可达0.9403,最大相对误差为4.91%,平均相对误差为3.52%,验证了模型预测结果的准确性,该模型可用于井下切向入口倒锥式旋流器在井下含砂环境使用时最大磨蚀程度和使用寿命的预测。Inverted cone hydrocyclone,used as the downhole separator in the DOWS systems,could be affected by the particles in the produced water,which leads to the erosion on its inlet and the wall,damaging the wall quality,affecting the flow state,thus reducing the separation effect and affecting the service life.In order to investigate the erosion law of the solid particles on the hydrocyclone,the DPM model and the response surface method were used to simulate the interaction between the particles and the separator.The main parameters were found out in this paper along with a multiple regression fitting equation model of the maximum wear rate of the hydrocyclone's wall.The results show that under the action of sand-bearing well fluid,the flow velocity,the concentration and the size of the solid particles have significant effects on the inlet and cylindrical section of the downhole inverted cone hydroyclone with the tangential inlet.Within the range of operating parameters,the maximum wear rates of the inlet and cylindrical section increase significantly with the increase of these three parameters.The multiple regression fitting equation model can be used to predict the abrasion degree and service life of the inverted cone hydrocyclone,as the correlation coefficient R-squared is 0.9403,the maximum relative error is 4.91%,and the average relative error is 3.52%.

关 键 词：倒锥式旋流器 磨蚀规律 DPM 响应面方法 多元回归拟合方程模型 

分 类 号：TH138[机械工程—机械制造及自动化]