地震储层预测技术在塔里木盆地雅克拉地区的应用
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摘要
塔里木盆地雅克拉地区油气资源丰富,但成藏规律不明显,针对该区侏罗系砂岩储层的展布及物性开展地震综合预测研究。通过叠后纯波地震资料,开展拟声波反演、频谱成像技术刻画砂砾岩体的纵横向分布。在此基础上开展叠前弹性波阻抗反演,包括目标储层段的纵横波阻抗,拉梅系数等分布特征及高频吸收衰减流体检测技术,分析不同岩性、物性、含油气性的地震响应特征。综合地震储层预测技术,研究侏罗系下统砂砾岩体有效储层的分布,寻找油气勘探有利靶区。
Oil and gas resources are rich in Yakela area of Tarim Basin,but the accumulation rule was not recognized obviously.The authors did the research on seismic comprehensive prediction for Jurassic sandstone reservoir in extension and its physical property.The inversion of pseudo-acoustic curves and spectrum imaging technology were made by means of post-stack pure wave seismic data in order to depict vertical and horizontal distribution of sandstone.On the basis of which,the impedance inversion of prestack elastic waves including the P-wave and S-wave impedance,distribution characteristics of Lame coefficient and liquid detection technique of high frequency absorption attenuation for target reservoir were developed to analyze the seismic response characteristics for different lithological,physical and petroliferous properties.The technology of seismic reservoir prediction depicted the distribution of effective reservoir of Lower Jurassic sandstone in the studied area,in order to search for petroleum exploration favorable target.
Oil and gas resources are rich in Yakela area of Tarim Basin,but the accumulation rule was not recognized obviously.The authors did the research on seismic comprehensive prediction for Jurassic sandstone reservoir in extension and its physical property.The inversion of pseudo-acoustic curves and spectrum imaging technology were made by means of post-stack pure wave seismic data in order to depict vertical and horizontal distribution of sandstone.On the basis of which,the impedance inversion of prestack elastic waves including the P-wave and S-wave impedance,distribution characteristics of Lame coefficient and liquid detection technique of high frequency absorption attenuation for target reservoir were developed to analyze the seismic response characteristics for different lithological,physical and petroliferous properties.The technology of seismic reservoir prediction depicted the distribution of effective reservoir of Lower Jurassic sandstone in the studied area,in order to search for petroleum exploration favorable target.
引文
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[10]刘喜武,年静波,吴海波.几种地震波阻抗反演方法的比较分析与综合应用[J].世界地质,2005,24(3):270-274.LIU Xi-wu,NIAN Jing-bo,WU Hai-bo.Comparison of seismic impedance inversion methods and an application case[J].Global Geology,2005,24(3):270-274.
[11]Li G F,Ma Y Y,Xiong J L,et al.Analysis of the am-biguity of log-constrained seismic impedance inversion[J].Petroleum Science,2011,8(2):151-156.
[12]Dai X F,Gan L D,Du W H,et al.Application of joint elastic impedance inversion in the GD oilfield[J].Ap-plied Geophysics,2006,3(1):37-41
[13]Li X Y.Processing PP and PS waves in multicomponent sea-floor data for azimuthal anisotropy:theory and over-view[C]//Proceedings of8th International Workshop on Seismic Anisotropy,Revue de I'Inst.Francais du Petro,1998,53:607-620.
[14]Walid M.Acoustic impedance inversion approach from petrophysical data[J].Journal of Petroleum Science and Engineering,2010,73(1/2):181-184.
[15]Mohamed K.Seismic velocity and Poisson's ratio tomo-graphy of the crust beneath East Anatolia[J].Journal of Asian Earth Sciences,2011,40(3):746-761.
[2]杨宁,吕修祥,周新源,等.塔里木盆地碳酸盐岩油气聚集带[J].地质学报,2006,80(3):398-404.YANG Ning,LXiu-xiang,ZHOU Xin-yuan,et al.Hydrocarbon accumulation zones of carbonate in the Tarim Basin[J].Acta Geologica Sinica,2006,80(3):398-404.
[3]秦月霜,梁海龙.利用井约束反演技术进行油藏描述研究[J].世界地质,2003,22(1):91-94.QIN Yue-shuang,LIANG Hai-long.Study of oil reservoir characterization with inversion technique constrained by log data[J].Global Geology,2003,22(1):91-94.
[4]李舟波.地球物理测井数据处理与综合解释[M].长春:吉林大学出版社,2003:60-75.LI Zhou-bo.Geophysical well logging data processing and comprehensive interpretation[M].Changchun:Jilin Uni-versity Press,2003:60-75.
[5]郑四连,刘百红,张秀容,等.伽马拟声波曲线构建技术在储层预测中的应用[J].石油物探,2006,45(3):256-261.ZHENG Si-lian,LIU Bai-hong,ZHANG Xiu-rong,et al.The application of gamma pseudo-acoustic curve construc-ting technique in reservoir prediction[J].Geophysical Prospecting for Petroleum,2006,45(3):256-261.
[6]王西文,刘全新,赵应成,等.小波域的波阻抗体反演方法[J].石油地球物理勘探,2000,35(1):89-95.WANG Xi-wen,LIU Quan-xin,ZHAO Ying-cheng,et al.A method for wave impedance inversion in wavelet domain[J].Oil Geophysical Prospecting,2000,35(1):89-95.
[7]杨谦,李正文.地震资料宽带约束反演方法及应用[J].石油物探,1996,35(4):37-42.YANG Qian,LI Zheng-wen.Broadband constrained of data and its application[J].Geophysical Prospecting for Petroleum,1996,35(4):37-42.
[8]朱伟,朱玲,吴新民.宽带约束反演在江陵凹陷谢凤桥油田储层预测中的应用[J].石油与天然气地质,2001,22(3):273-276.ZHU Wei,ZHU Ling,WU Xin-min.Application of wide-brand constrained inversion to prediction of Xiefengqiao oil-field reservoir in Jiangling depression[J].Oil&Gas Ge-ology,2001,22(3):273-276.
[9]李守巨,刘迎曦,王登刚.基于模拟退火算法的含水层参数非线性反演[J].西安交通大学学报,2001,35(5):546-548.LI Shou-ju,LIU Ying-xi,WANG Deng-gang.Nonlinear inversion of aquifer parameters based on simulated annea-ling algorithm[J].Journal of Xi'an Jiaotong University,2001,35(5):546-548.
[10]刘喜武,年静波,吴海波.几种地震波阻抗反演方法的比较分析与综合应用[J].世界地质,2005,24(3):270-274.LIU Xi-wu,NIAN Jing-bo,WU Hai-bo.Comparison of seismic impedance inversion methods and an application case[J].Global Geology,2005,24(3):270-274.
[11]Li G F,Ma Y Y,Xiong J L,et al.Analysis of the am-biguity of log-constrained seismic impedance inversion[J].Petroleum Science,2011,8(2):151-156.
[12]Dai X F,Gan L D,Du W H,et al.Application of joint elastic impedance inversion in the GD oilfield[J].Ap-plied Geophysics,2006,3(1):37-41
[13]Li X Y.Processing PP and PS waves in multicomponent sea-floor data for azimuthal anisotropy:theory and over-view[C]//Proceedings of8th International Workshop on Seismic Anisotropy,Revue de I'Inst.Francais du Petro,1998,53:607-620.
[14]Walid M.Acoustic impedance inversion approach from petrophysical data[J].Journal of Petroleum Science and Engineering,2010,73(1/2):181-184.
[15]Mohamed K.Seismic velocity and Poisson's ratio tomo-graphy of the crust beneath East Anatolia[J].Journal of Asian Earth Sciences,2011,40(3):746-761.
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