地震多属性在浊积扇河道砂体识别中的应用
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摘要
浊积体中河道砂体单层厚度薄,横向变化快,受断层构造影响大,利用常规瞬时振幅沿层切片方法很难识别河道砂体展布,而用地层切片构建等时地层格架,利用谱分解技术将相干属性与地层切片结合起来,运用测井相、沉积相资料可对浊积扇的河道砂体进行综合预测.将此方法运用到渤海工区中取得了较好的实际效果,查明了河道砂体的展布规律,为后期的布井钻探提供了依据.
The channel sandbodies in turbidite body are characterized by little single-layer thickness,quick horizontal variation and the great influence of fault structure.Therefore it is difficult to identify the distribution of the channel sandbodies by conventional instantaneous amplitude attributes in stratum slicing.But if coherence attributes are combined with stratum slicing attributes by constructing isochronous stratigraphic framework and spectrum decomposition technology,the distribution of sandbodies in turbidite body can be predicted based on logging data and sedimentary facies data.This prediction method was applied to Bohai area and the distribution of sandbodies in the area was obtained,which provides basis for the arrangement of wells in later exploration.
The channel sandbodies in turbidite body are characterized by little single-layer thickness,quick horizontal variation and the great influence of fault structure.Therefore it is difficult to identify the distribution of the channel sandbodies by conventional instantaneous amplitude attributes in stratum slicing.But if coherence attributes are combined with stratum slicing attributes by constructing isochronous stratigraphic framework and spectrum decomposition technology,the distribution of sandbodies in turbidite body can be predicted based on logging data and sedimentary facies data.This prediction method was applied to Bohai area and the distribution of sandbodies in the area was obtained,which provides basis for the arrangement of wells in later exploration.
引文
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[15]刘丽薇,郝兴国,赵伟,等.多属性分析技术在薄互层条件下识别古河道的应用[J].大庆石油学院学报,2006,30(4):4-6.LIU Li-wei,HAO Xing-guo,ZHAO Wei,et al.Applicationof multi-attribute analysis to the identification of river palaeochannel in the thin interbeded reservoir[J].Journalof Daqing Petroleum Institute,2006,30(4):4-6.
[16]刘文岭,牛彦良,李刚,等.多信息储层预测地震属性提取与有效性分析方法[J].石油物探,2002,41(1):100-106.LIU Wen-ling,NIU Yan-liang,LI Gang,et al.Seismic at-tribute extraction and effectiveness analysis of multi-attrib-ute reservoir prediction[J].Geophysical Prospecting forPetroleum,2002,41(1):100-106.
[2]胡作维,黄思静,单钰铭,等.储层砂岩波阻抗及拉梅常数实验研究[J].地球科学与环境学报,2006,28(4):54-57.HU Zuo-wei,HUANG Si-jing,SHAN Yu-ming,et al.Ex-perimental study on wave impedance and Lame constant ofreservoir sandstones[J].Journal of Earth Sciences andEnvironment,2006,28(4):54-57.
[3]韩喜,高兴友,车廷信,等.利用地震属性沿层分析方法研究河流相沉积环境[J].石油地球物理勘探,2007,42(1):120-124.HAN Xi,GAO Xing-you,CHE Ting-xin,et al.Using anal-ysis of seismic attributes along horizons to study sedimen-tary environment of fluvial facies[J].Oil GeophysicalProspecting,2007,42(1):120-124.
[4]王世瑞,王树平,狄帮让,等.基于地震属性特征的河道砂体预测方法[J].石油地球物理勘探,2009,44(3):304-313.WANG Shi-rui,WANG Shu-ping,DI Bang-rang,et al.Prediction of channel sand body based on seismic attrib-utes[J].Oil Geophysical Prospecting,2009,44(3):304-313.
[5]ZENG Hong-liu,Barrow K T,Tyler N,et al.Stratal sli-cing,partⅠ:realistic 3-D seismic model[J].Geophys-ics,1998,63(2):502-513.
[6]ZENG Hong-liu,Henry S C,Riola J P.Stratal slicing,partⅡ:real 3-D seismic data[J].Geophysics,1998,63(2):514-522.
[7]ZENG Hong-liu.Stratal slicing:benefits and challenges[J].The Leading Edge,2010,29(9):1040-1047.
[8]丁晓琪,张哨楠.层序地层学在河流相地层研究中的应用[J].西安石油大学学报:自然科学版,2010,25(4):1-5.DING Xiao-qi,ZHANG Shao-nan.Application of sequencestratigraphy in the research of fluvial strata[J].Journal ofXi'an Shiyou University:Natural Science Edition,2010,25(4):1-5.
[9]赵澄林,朱筱敏.沉积岩石学[M].北京:石油工业出版社,2001:311-312.ZHAO Cheng-lin,ZHU Xiao-min.Sedimentary Petrology[C].BeiJing:Petroleum Industry Press,2001:311-312.
[10]Chopra S,Marfurt K J.Seismic attributes for prospect iden-tification and reservoir characterization[C].Tulsa:Societyof Exploration Geophysicists,2007:1-7.
[11]郎晓玲,彭仕宓,康洪全,等.利用多属性体分类技术预测扇三角洲砂体[J].西南石油大学学报:自然科学版,2010,32(1):57-62.LANG Xiao-ling,PENG Shi-mi,KANG Hong-quan,et al.Predict fan delta and body by using multi-attributes vol-ume classification technology[J].Journal of Southwest Pe-troleum University:Science&Technology Edition,2010,32(1):57-62.
[12]靳军,刘洛夫,李双文,等.用地震属性分析莫8井区J1s21砂体微相展布[J].西安石油大学学报:自然科学版,2009,24(1):41-43,51.JIN Jun,LIU Luo-fu,LI Shuang-wen,et al.Study on themicrofacies distribution of J1s21 sandbody in Mo-8 well-block of Jungar Basin by means of the characteristics ofseismic attributes[J].Journal of Xi'an Shiyou University:Natural Science Edition,2009,24(1):41-43,51.
[13]谢里夫R E,吉尔达特L P.勘探地震学[M].北京:石油工业出版社,1999:224-227.Sherif R E,Geldart L P.Exploration Seismolog[M].Bei-jing:Petroleum Industry Press,1999:224-227.
[14]曹辉.关于地震属性应用的几点认识[J].勘探地球物理进展,2002,25(5):18-22.CAO Hui.Discussion on the application of seismic attrib-utes[J].Progress in Exploration Geophysics,2002,25(5):18-22.
[15]刘丽薇,郝兴国,赵伟,等.多属性分析技术在薄互层条件下识别古河道的应用[J].大庆石油学院学报,2006,30(4):4-6.LIU Li-wei,HAO Xing-guo,ZHAO Wei,et al.Applicationof multi-attribute analysis to the identification of river palaeochannel in the thin interbeded reservoir[J].Journalof Daqing Petroleum Institute,2006,30(4):4-6.
[16]刘文岭,牛彦良,李刚,等.多信息储层预测地震属性提取与有效性分析方法[J].石油物探,2002,41(1):100-106.LIU Wen-ling,NIU Yan-liang,LI Gang,et al.Seismic at-tribute extraction and effectiveness analysis of multi-attrib-ute reservoir prediction[J].Geophysical Prospecting forPetroleum,2002,41(1):100-106.
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