不同密度下水力射流泵动态特性方程建立及应用  

Establishment and Application of Dynamic Characteristic Equations for Hydraulic Jet Pumps under Different Densities

作　　者：褚英杰[1] 谢双喜[1] 丁鹏飞 丁程祥 徐浩[1] Chu Yingjie;Xie Shuangxi;Ding Pengfei;Ding Chengxiang;Xu Hao(CNOOC Energy Development Co.,Ltd.Engineering Technology Branch,Tianjin 300452;CNOOC(China)Co.,Ltd.Tianjin Branch,Tianjin 300459)

机构地区：[1]中海油能源发展股份有限公司公司工程技术分公司,天津300452 [2]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《石化技术》2024年第6期38-40,共3页Petrochemical Industry Technology

摘　　要：水力射流泵具有无运动部件,产量调节范围广,检泵不动管柱,作业时间短且作业成本低等优点,因次,该设备在海上油田前期排液注水井将有广泛的应用前景。然而,当前水力射流泵选型所用的特性方程是建立在动力液密度和产液密度相同的假设条件下推导的。该特性方程对流体密度相近的排液井选择出的射流泵型较合适,而对流体密度差异大的排液井,选出的泵型及工作参数与泵实际运行参数差异较大,影响了泵排液效果。为更准确描述流体密度差异对泵特性影响,进一步提高选泵水平。根据能量方程和动量方程,我们建立了不同密度下水力射流泵动态特性方程,并将该方程应用于选泵中,油井排液效果良好。The hydraulic jet pump has the advantages of no moving parts,a wide range of lifting flow rate,no POOH and RIH during pump inspection,short workover time,and low workover cost.Therefore,this equipment will have a wide application prospect in the early stage of liquid discharge and injection wells in offshore oil fields.However,the characteristic equation used in the current selection of hydraulic jet pumps is derived based on the assumption that the dynamic liquid density and production liquid density are the same.The characteristic equation is more suitable for selecting the jet pump type for drainage wells with similar fluid densities,while for drainage wells with large differences in fluid densities,the selected pump type and working parameters differ greatly from the actual operating parameters of the pump,which affects the pumping effect.To more accurately describe the impact of fluid density differences on pump characteristics and further improve the level of pump selection.Based on the energy equation and momentum equation,we established the dynamic characteristic equations of hydraulic jet pumps at different densities and applied these equations to pump selection,resulting in good oil well drainage performance.

关 键 词：水力射流泵 液体密度差异 泵特性方程 泵选型 

分 类 号：TE952[石油与天然气工程—石油机械设备]