水平井双腔螺旋式AICD实验研究  

Experimental study on double-cavity spiral AICD of horizontal well

作　　者：刘承婷[1] 陈甜 闫作秀 Liu Chengting;Chen Tian;Yan Zuoxiu(School of Petroleum Engineering,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318

出　　处：《南京理工大学学报》2021年第6期743-750,共8页Journal of Nanjing University of Science and Technology

基　　金：中国石油科技创新基金(2018D-5007-0206)。

摘　　要：为了更好地解决现有水平井存在的水脊现象和趾跟效应,设计了一种双腔螺旋式自动流入控制装置(AICD)。利用多因素实验的方法,对不同流体粘度、流量、含水率进行研究,分析水相、油相以及不同含水率油水两相流通过装置的流动压降、分离效率以及控水性能。实验结果表明:流体压降随着粘度的增大而减小,纯水流过该装置的过阀压降最大,可以达到粘度为200 mPa·s纯油压降的4倍;该装置使井筒中水相、低粘度流体与高含水流体的阻液率提高了3.5%;流量25 m^(3)/d且含水率30%时,该装置能够稳定高粘流体的产量,抑制水相的流出,达到最佳的稳油控水效果。In order to solve the ridge phenomenon and toe heel effect of horizontal wells,a double-cavity spiral automatic inflow control device(AICD)is designed.The flow pressure drop,separation efficiency and water control performance of water-phase,oil-phase and oil-water two-phase flow device are analyzed by a multi-factor test,and different viscosities,flows,water contents are researched.The experimental result show that the pressure drop of the fluid decreases with the increase of viscosity,and the valve’s pressure drop of pure water flowing through the device is the largest,which can reach 4 times the valve’s pressure drop of the pure oil with viscosity of 200 mPa·s.The device increases the liquid resistance of water phase,low viscosity fluid and high water content fluid by 3.5%;when the flow rate is 25 m^(3)/d and the water content is 30%,the device can stabilize the output of high viscosity fluid,inhibit the outflow of water phase,and achieve the best oil stability and water control effect.

关 键 词：水平井 双腔螺旋 自动流入控制装置 流体粘度 含水率 水脊现象 趾跟效应 

分 类 号：TE99[石油与天然气工程—石油机械设备]