双谱速度分析下的地层压力预测
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摘要
为提高依靠地震速度谱数据进行压力预测的准确度,提出将主成分分析(PCA)判断准则应用到双参数速度扫描中来拾取地震速度,从而减少扫描数据时随着反射层数的增加及偏移距的增大而造成的偏差,并将所得速度参数及时间参数应用到改进的Fillippone公式中,改善了压力预测的精度。
In order to improve the accuracy of pressure prediction relying on seismic velocity spectrum,the authors combine the principal component analysis(PCA)criterion in bispectral velocity scanning to pick up seismic velocity,which can reduce the errors by the increase of reflecting layers and offeset in data scanning.Applied the velocity and time parameters in the Fillippone formula,the pressure prediction was improved in accuracy.
In order to improve the accuracy of pressure prediction relying on seismic velocity spectrum,the authors combine the principal component analysis(PCA)criterion in bispectral velocity scanning to pick up seismic velocity,which can reduce the errors by the increase of reflecting layers and offeset in data scanning.Applied the velocity and time parameters in the Fillippone formula,the pressure prediction was improved in accuracy.
引文
[1]云美厚.地震地层压力预测[J].石油地球物理勘探,1996,31(4):575-586.YUN Mei-hou.Formation pressure prediction using seis-mic data[J].Oil Geophysical Prosepecting,1996,31(4):575-586.
[2]张传进.地震层速度预测地层压力研究[J].石油钻采工艺,1998,20(2):14-17.ZHANG Chuan-jin.Study of formation pressure predictionwith seismic interval velocity[J].Oil Drilling&Pro-duction Technology,1998,20(2):14-17.
[3]高刚,桂志先.速度谱校正及其在地层压力预测中的应用[J].工程地球物理学报,2008,5(5):560-563.GAO Gang,GUI Zhi-xian.Correction of velocity spec-trum application in predicting formation pressure[J].Chinese Journal of Engineering Geophysics,2008,5(5):560-563.
[4]张卫华,何生.地震资料预测压力方法和展望[J].地球物理学进展,2005,20(3):814-817.ZHANG Wei-hua,HE Sheng.The methods and head-wayfor pressure prediction[J].Progress in Geophysics,2005,20(3):814-817.
[5]徐善辉,韩立国,李培培.层状介质P波走时速度误差分析[J].世界地质,2009,28(1):98-102.XU Shan-hui,HAN Li-guo,LI Pei-pei.Error analysis ofP-wave non-hyperbolic moveout velocity in layered media[J].Global Geology,2009,28(1):98-102.
[6]王光杰,张中杰,滕吉文.TI介质双参数速度分析[J].地球物理学进展,2004,19(1):113-118.WANG Guang-jie,ZHANG Zhong-jie,TENG Ji-wen.Velocity analysis using nonhyperbolic moveout in trans-versely isotropic media[J].Progress in Geophysics,2004,19(1):113-118.
[7]孙祥娥,双参数速度扫描方法研究[J].石油天然气学报,2006,28(6):65-68.SUN Xiang-e.Study of velocity analysis using nonhy-per-bolic moveout[J].Journal of Oil and Gas Technology,2006,28(6):65-68.
[8]孙祥娥.地震波速度求取的若干问题研究:博士学位论文[D].成都:成都理工大学,2007.SUN Xiang-e.The study of velocity of seismic waves:Ph'D dissertation[D].Chengdu:Chengdu University ofTechnology,2007.
[9]TAN Chen-qing,WU Yan-gang.Shifted arrival pointtravel time NMO inversion[J].Applied Geophysics,2011,8(3):217-224.
[10]Fillippone W R.On the prediction of abnormally pres-sured sedimentary rocks from seismic data[J].Off-shore Technology Conference,1979,27:2667-2676.
[11]Fillippone W R.Estimation of formation parameters andthe prediction of overpressure from seismic data[C].Expanded Abstracts of 52nd Annual Inrernat SEG Mtg,1982:502,503.
[2]张传进.地震层速度预测地层压力研究[J].石油钻采工艺,1998,20(2):14-17.ZHANG Chuan-jin.Study of formation pressure predictionwith seismic interval velocity[J].Oil Drilling&Pro-duction Technology,1998,20(2):14-17.
[3]高刚,桂志先.速度谱校正及其在地层压力预测中的应用[J].工程地球物理学报,2008,5(5):560-563.GAO Gang,GUI Zhi-xian.Correction of velocity spec-trum application in predicting formation pressure[J].Chinese Journal of Engineering Geophysics,2008,5(5):560-563.
[4]张卫华,何生.地震资料预测压力方法和展望[J].地球物理学进展,2005,20(3):814-817.ZHANG Wei-hua,HE Sheng.The methods and head-wayfor pressure prediction[J].Progress in Geophysics,2005,20(3):814-817.
[5]徐善辉,韩立国,李培培.层状介质P波走时速度误差分析[J].世界地质,2009,28(1):98-102.XU Shan-hui,HAN Li-guo,LI Pei-pei.Error analysis ofP-wave non-hyperbolic moveout velocity in layered media[J].Global Geology,2009,28(1):98-102.
[6]王光杰,张中杰,滕吉文.TI介质双参数速度分析[J].地球物理学进展,2004,19(1):113-118.WANG Guang-jie,ZHANG Zhong-jie,TENG Ji-wen.Velocity analysis using nonhyperbolic moveout in trans-versely isotropic media[J].Progress in Geophysics,2004,19(1):113-118.
[7]孙祥娥,双参数速度扫描方法研究[J].石油天然气学报,2006,28(6):65-68.SUN Xiang-e.Study of velocity analysis using nonhy-per-bolic moveout[J].Journal of Oil and Gas Technology,2006,28(6):65-68.
[8]孙祥娥.地震波速度求取的若干问题研究:博士学位论文[D].成都:成都理工大学,2007.SUN Xiang-e.The study of velocity of seismic waves:Ph'D dissertation[D].Chengdu:Chengdu University ofTechnology,2007.
[9]TAN Chen-qing,WU Yan-gang.Shifted arrival pointtravel time NMO inversion[J].Applied Geophysics,2011,8(3):217-224.
[10]Fillippone W R.On the prediction of abnormally pres-sured sedimentary rocks from seismic data[J].Off-shore Technology Conference,1979,27:2667-2676.
[11]Fillippone W R.Estimation of formation parameters andthe prediction of overpressure from seismic data[C].Expanded Abstracts of 52nd Annual Inrernat SEG Mtg,1982:502,503.
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