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《Chinese Journal of Sensors and Actuators》 2015-10
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Research on Processing Methods of Vortex Flowmeter Signal Processing in Layered Water Injection Technology

JIA Deli;YU Yong;CHEN Zhao;ZOU Tianyang;ZHAO Mingxin;Harbin University of Science and Technology;Petro China Co Ltd Exploration and Development Research Institute;Production Engineering Research Institute Daqing Oilfield Company Ltd Daqing;  
In layered Water Injection Technology of integration,the flow rate of each layer must be accurately mea-sured,and its required flowmeter must be placed underground long-term,Comprehensive consideration using thevortex flowmeter as flow rate detecting means In layered Water Injection Technology of integration. But vortex flow-meter susceptible to the noise of Piping vibration and flow field disturbance,And water pipes are more prone to in-terference signal in the process of water injection,especially at low flow is difficult to distinguish the frequency sig-nal generated by the sensor. Based on the characteristics of vortex flowmeter proposed a combination of hardwareand Mallat algorithm to deal with the problem of the low frequency unable to distinguish,and carried out the experi-mental verification and field applications. The xperimental results show that using this method can reduce noise ef-fectively and reducing the lower limit of the flowmeter and improves the accuracy.
【Fund】: 黑龙江省青年科学基金项目(QC2011C009);; 哈尔滨市青年基金(2014RFQXJ165);; 黑龙江省教育厅项目(12541135)
【CateGory Index】: TH814
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