南海西部文昌地区测井数据标准化方法与应用
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摘要
为解决测井资料标准化这个重要而复杂的问题,以南海西部文昌地区常规测井资料为研究对象,充分利用岩心分析资料制定如下测井数据标准化方案:在深入分析研究区地质资料的基础上确定标准层优选关键井,并对关键井进行岩心刻度以确保关键井信息的正确;继而通过Grubbs公式对关键井的测井曲线频率直方图主频值进行处理,得到研究区第一个测井标准化值;再利用拟合度限定趋势面函数次数的趋势面求值法,处理全部井标准层内的测井曲线频率直方图主频值,得到研究区第二个测井标准化值;最终选取第一与第二标准化值的均值作为研究区校正标准。对比岩心分析资料,认为校正后的测井数据更加合理,这为研究区后续利用测井资料进行储层综合评价奠定了基础。
Logging data standardization is an important and complicated issue.To deal with it,we made a logging data standardization program by taking full advantage of core analysis data from Wenchang region,western part of South China sea.The program is as follow:After a deep analysis of the geological condition of the research area,the optimal key wells of marker bed were determined.Then the key wells were further core calibrated to make sure the obtained information was correct.The first standardized logging value could be obtained by processing the main frequency value of logging frequency histogram of key wells with Grubbs formula,and the second value could be obtained by processing the main frequency value of logging frequency histogram of all wells with trend surface analysis.Finally,the average of these two standardized values was chosen as the calibration standard for the research area.Comparing with core analysis data,the logging data after calibration is more reasonable.The present work has laid a good foundation for the comprehensive evaluation of reservoirs by using logging data.
Logging data standardization is an important and complicated issue.To deal with it,we made a logging data standardization program by taking full advantage of core analysis data from Wenchang region,western part of South China sea.The program is as follow:After a deep analysis of the geological condition of the research area,the optimal key wells of marker bed were determined.Then the key wells were further core calibrated to make sure the obtained information was correct.The first standardized logging value could be obtained by processing the main frequency value of logging frequency histogram of key wells with Grubbs formula,and the second value could be obtained by processing the main frequency value of logging frequency histogram of all wells with trend surface analysis.Finally,the average of these two standardized values was chosen as the calibration standard for the research area.Comparing with core analysis data,the logging data after calibration is more reasonable.The present work has laid a good foundation for the comprehensive evaluation of reservoirs by using logging data.
引文
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[13]李汉林,赵永军,王海起.石油数学地质[M].东营:中国石油大学出版社,2008.Li Han Lin,Zhao Yong Jun,Wang Hai Qi.Oil Mathematics Geology[M].DongYing:China university of petroleum press,2008.
[2]薛桂霞,刘秀娟,邓世坤.测井约束的地震反演在鄂尔多斯盆地大牛地气田中的应用[J].地球物理学进展,2004,19(4):909-917.Xue Gui Xia,Liu Xiu Juan,Deng Shi Kun.Seismic inversion constrained by wells in the Daniu gas-field in Eerduosi Basin[J].Procress in geophysics,2004,19(4):909-917.
[3]刘爱锋.测井资料归一化方法探讨[J].中国石油大学胜利学院学报,2008,22(2):14-16.Liu Ai Feng.Logging data normalization method is discussed[J].Journal of Shengli College China University of Petroleum,2008,22(2):14-16.
[4]任彬,曹佳佳,夏朝辉,等.印尼RIPAH油田LTAF组地层测井资料标准化研究[J].国外测井技术,2011(2):23-25.Ren Bin,Cao Jia Jia,Xia Zhao Hui,et al.Ltaf formation log normalization of ripah oilfield in indonesia[J].World well logging technology,2011(2):23-25.
[5]夏宏泉,刘红歧.BP神经网络在测井资料标准化中的应用[J].测井技术,1996,20(3):201-206.Xia Hong Quan,Liu Hong Qi.Application of BP Neural Network to Normalizationof Logging Data[J].Well Logging Technology,1996,20(3):201-206.
[6]何胜林,曾少军,杨燕,等.南海西部海域文昌A、B油田低阻成因分析[J].世界地质,2011,30(3):404-409.He Sheng Lin,Zeng Shao Jun,Yang Yan,et al.Analysis on low-resistivity origin of Wenchang A and B oilfields in western South China Sea[J].Global geology,2011,30(3):404-409.
[7]张迎朝,甘军,邓勇,等.珠江口盆地西部文昌B凹陷及周边油气成藏组合[J].中国海上油气,2009,21(5):303-307.Zhang Ying Zhao,Gan Jun,Deng Yong,et al.Hydrocarbon plays in Wenchang B sag and its surr ounding ar eas,the western Pear l River Mouth basin[J].China offshore oil and gas,2009,21(5):303-307.
[8]姜华,王华,李俊良,等.珠江口盆地珠三坳陷层序地层样式分析[J].海洋地质与第四纪地质,2009,29(1):87-92.Jiang Hua,Wang Hua,Li Jun Liang,et al.Analysis on sequence formation styles of zhu-3depression in pearl river mouth basin[J].Marine geology&quaternary geology,2009,29(1):87-92.
[9]姜巍,廖明光,陈小强.文昌13~2油田珠江组一段储层特征研究[J].国外测井技术,2009,169:24-27.Jiang Wei,Liao Guang Ming,Chen Xiao Qiang.Wenchang oilfield 13~2pearl river group a reservoir characteristics research[J].World well logging technology,2009,169:24-27.
[10]戴启德,纪友亮.油气储层地质学[M].东营:中国石油大学出版社,1996.Dai Qi De,Ji You Liang.Hydrocarbon Reservoir Geology[M].DongYing:China university of petroleum press,1996.
[11]ERCILL HUNT,金羽龙,虞绍永.测井分析基础[J].石油物探译丛,1997(4):70-76.Ercill Hunt,Jin Yu Long,Yu Shao Yong.Basis of Well Logging Analysis[J].Geophysical prospecting for petroleum,1997(4):70-76.
[12]王营营,孙莉莉,王志章.测井资料趋势面分析法标准化流程建立[J].油气地球物理,2010,8(4):5-8.Wang Ying Ying,Sun Li Li,Wang Zhi Zhang.The establishment of the trend surface analysis normalization flow chart for logging data[J].Petroleum geophysics,2010,8(4):5-8.
[13]李汉林,赵永军,王海起.石油数学地质[M].东营:中国石油大学出版社,2008.Li Han Lin,Zhao Yong Jun,Wang Hai Qi.Oil Mathematics Geology[M].DongYing:China university of petroleum press,2008.
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