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油水两相流中2种含水率计算模型比较
引用本文:李利品,党瑞荣,黄燕群,高国旺. 油水两相流中2种含水率计算模型比较[J]. 仪器仪表学报, 2012, 33(4): 924-929
作者姓名:李利品  党瑞荣  黄燕群  高国旺
作者单位:1. 西北工业大学 西安710072;西安石油大学光电油气测井与检测教育部重点实验室 西安710065
2. 西安石油大学光电油气测井与检测教育部重点实验室 西安710065
3. 中国兵器工业第203研究所 西安710065
基金项目:国家科技重大专项(2008ZX05026-001-03);陕西省教育厅(2010JK781)资助项目
摘    要:油水两相流广泛存在于石油开采、储运、化工、能源等工业领域。含水率是油水两相流系统的重要参数之一,含水率的准确测量不仅与采用的测量方法有关,而且还与计算模型有很大关系。结合电导式测量方法建立了电阻-电容并联网络含水率计算模型,并在3种流型下与Maxwell含水率模型进行了仿真和实验对比。结果表明,建立的并联电阻-电容网络含水率模型,在泡状流下与Maxwell含水率计算模型的误差基本相同,而在环状流、分层流下,测试误差均小于Maxwell含水率计算模型的误差,具有更高的测试精度,可适用于环状流、分层流、泡状流等流型。

关 键 词:并联电阻-电容模型  Maxwell模型  含水率  油水两相流

Comparison of two water-fraction calculation models in oil-water two-phase flow
Li Lipin , Dang Ruirong , Huang Yanqun , Gao Guowang. Comparison of two water-fraction calculation models in oil-water two-phase flow[J]. Chinese Journal of Scientific Instrument, 2012, 33(4): 924-929
Authors:Li Lipin    Dang Ruirong    Huang Yanqun    Gao Guowang
Affiliation:1 Northwestern Polytechnical University,Xi’an 710072,China;2 Key Laboratory of Photoelectric Logging and Detecting of Oil and Gas,Ministry of Education,Xi’an Shiyou University,Xian 710065,China; 3 No.203 Research Institute of China Ordnance Industries,Xi’an 710065,China)
Abstract:Oil-water two-phase flow exists widely in oil exploration,storage and transportation,chemical engineering,energy resource and other industrial fields.Water fraction is one of the important parameters in oil-water two-phase system.Accurate measurement of water fraction is related not only to measurement method,but also to calculation model.Using conductance measurement method,a water fraction calculation model was built based on parallel resistance-capacitance network.And the simulation and experiment results are compared with those applying Maxwell calculation model for 3 different flow patterns.Simulation and experiment results show that the measurement errors are basically identical for the parallel resistance-capacitance network model and Maxwell model in bubble flow.While the errors using parallel resistance-capacitance network model are lower than those using Maxwell model in annular flow and stratified flow.Therefore the parallel resistance-capacitance network model has higher precision for water-fraction calculation than Maxwell model and is suitable for annular flow,stratified flow and bubble flow.
Keywords:parallel resistance-capacitance model  Maxwell model  water fraction  oil-water two-phase flow
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