油水驱替条件下岩石复电阻率测试与分析
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摘要
油水驱替,一个水驱油和油驱水的混合交替过程。测量了岩石的物理性质—复电阻率。复电阻率的研究建立在激发极化效应理论依据上,即在电化学的作用下,产生的人工激发极化电场规律。由其延伸的频谱激电法和复电阻率法,同样也是测试复电阻率的基础。在不同油水饱和度下迚行油水驱替实验,测量幅频、相频的变化特征。以理想的Cole模型为基础,通过反演拟合得到频谱参数。利用实验数据及模型拟合,最终得出复电阻率的测试分析规律。
Oil-water displacement is a mixing and alternating process of water displacing oil and oil displacing water.In this paper, the physical properties of the rock, the complex resistivity was determined. The study of complex resistivity is based on the theoretical basis of induced polarization effect, namely, the law of induced polarization electric field generated under the action of electrochemistry. The extended spectrum IP and complex resistivity methods are also the basis for testing complex resistivity. Oil-water displacement experiments were carried out under different oil-water saturation to measure the variation characteristics of amplitude and frequency and phase frequency.Finally, based on the ideal Cole model, the spectrum parameters were obtained by inversion and fitting. The law of test and analysis of complex resistivity was explained by means of theoretical basis, experimental measurement,experimental data and model fitting.
Oil-water displacement is a mixing and alternating process of water displacing oil and oil displacing water.In this paper, the physical properties of the rock, the complex resistivity was determined. The study of complex resistivity is based on the theoretical basis of induced polarization effect, namely, the law of induced polarization electric field generated under the action of electrochemistry. The extended spectrum IP and complex resistivity methods are also the basis for testing complex resistivity. Oil-water displacement experiments were carried out under different oil-water saturation to measure the variation characteristics of amplitude and frequency and phase frequency.Finally, based on the ideal Cole model, the spectrum parameters were obtained by inversion and fitting. The law of test and analysis of complex resistivity was explained by means of theoretical basis, experimental measurement,experimental data and model fitting.
引文
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[12]徐庆,刘义坤,王珏.薄差油层聚合物驱油效果评价斱法研究[J].当代化工,2019, 48(2):319-322.
[2]陈序三,朱留斱,赵文杰.复电阻率测井斱法应用[J].测井技术,2001,25(5):327-331.
[3]张加举,姜亦忠,童茂松,等.模拟地层条件下含水岩石的复电阻率实验研究[J].石油仪器报刊,2005,19(1):22-25.
[4]张祖波,杨默函.储层条件下砂岩岩心驱替实验斱法研究[J].北京大学学报,2006,42(6):729-733.
[5]汪益,陈振标.驱替过程中的岩石电阻率实验研究[J].内蒙古石油化工,2007,33(9):87-88.
[6]肖占山,罗延钟,朱世和,等.泥质砂岩复电阻率的频散特性研究[J].高校地质学报,2006,12(1):123-130.
[7]田晓冬,曾玉生,李颖.南堡凹陷水驱油岩石电阻率变化特征研究[J].长江大学学报,2015(26):33-36.
[8]张桂青,崔先文,罗延钟.一种反演频谱激电法视频谱求取真参数的斱法[J].地质与勘探,1987,23(4):48-54.
[9]王自力,张赛珍.一种真复电阻率频谱参数的求解斱法[J].地球物理学报,1989,33(6):712-721.
[10]张辉,李桐林.利用Cole-Cole模型组合得到SIP真参数的联合频谱最优化反演[J].西北地震学报,2004,26(2):108-112.
[11]吴孝国.柯尔模型激电时间谱的正反演斱法及应用[J].地质与勘探,1989,25(9):37-41.
[12]徐庆,刘义坤,王珏.薄差油层聚合物驱油效果评价斱法研究[J].当代化工,2019, 48(2):319-322.