基于随机单斜介质的井间时延地震记录模拟
|
摘要
以Von Karman型随机裂隙单斜介质为例,模拟了背景纵波速度、裂隙方位角、裂隙分布密度随标准差连续变化时的一系列井间地震记录,并利用相关系数分别研究了上述模型井间地震记录的线性相关性及相像程度。结果表明:随机单斜介质模型正演可以在一定程度上近似井间时延地震,随着标准差的增大,相关系数随之减小,相应的地震记录的线性相关性、相像程度也随之减小。
By taking the Von Karman type of random crack monoclinic media as an example,a series of cross-hole seismic records were simulated,which described the background P-wave velocity,fracture azimuth,fracture density with the standard deviation of a continuous change,and the correlation coefficients were used to study the model of cross-hole seismic records of the linear correlation,imaging degree. The results show that the random monoclinic medium forward modeling can be used to a certain extent to approximate the cross-hole time-lapse seismic,with the increasing of standard deviation,correlation coefficient subsequently reduces,the corresponding linear correlation of seismic records,imaging degree decrease with it.
By taking the Von Karman type of random crack monoclinic media as an example,a series of cross-hole seismic records were simulated,which described the background P-wave velocity,fracture azimuth,fracture density with the standard deviation of a continuous change,and the correlation coefficients were used to study the model of cross-hole seismic records of the linear correlation,imaging degree. The results show that the random monoclinic medium forward modeling can be used to a certain extent to approximate the cross-hole time-lapse seismic,with the increasing of standard deviation,correlation coefficient subsequently reduces,the corresponding linear correlation of seismic records,imaging degree decrease with it.
引文
[1]赵改善.油藏动态监测技术的发展现状与展望:时延地震[J].勘探地球物理进展,2005,28(3):157~168.
[2]易维启,李明,云美厚,等.时移地震方法概论[M].北京:石油工业出版社,2002.
[3]孙晶梅.储层地球物理研究的深入发展[C].第68届SEG年会论文集[A].北京:石油工业出版社,1999.
[4]黄绪德,郭正吾.致密砂岩裂缝气藏的地震预测[J].石油物探,2000,39(2):2~13.
[5]高希勤,侯安宁,白俊辉,等.利用P波源三分量VSP检测裂缝[J].石油地球物理勘探,1998,33(1):109~117.
[6]王新红.稠油热采的地震监测技术[J].石油地球物理勘探,1992,27(2):294~302.
[7]庄东海,许云,乌达巴拉.四位地震及其实施要求[J].石油天然气地质,1999,20(4):361~364.
[8]杨勤勇,钟炜.油气田开发中的思维地震技术[J].石油物探,1999,38(3):50~57.
[9]奚先,姚姚.随机介质模型的模拟与混合型随机介质[J].地球科学(中国地质大学学报),2002,27(1):67~71.
[10]姚姚,奚先.随机介质模型正演模拟及其地震波场分析[J].石油物探,2002,41(1):31~36.
[11]唐启军,韩立国,王恩利,等.基于随机各向同性背景的粘弹性单斜介质二维三分量正演模拟[J].西北地震学报,2009,31(1):35~39.
[12]Ramos-Martinez J,Ortega A A,Mc Mechan G A.3-Dseismic modeling for cracked media:shear-wave splitting at zero offset[J].Geophysics,2000,65(1):211~221.
[13]王德利,何樵登.裂隙型单斜介质中弹性系数的计算及波的传播特性研究[J].吉林大学学报(地球科学版),2002,32(2):91~96.
[14]王德利,何樵登,韩立国.裂隙型单斜介质中多方位地面三分量记录模拟[J].地球物理学报,2005,48(2):386~393.
[15]Wang En-li,Han Li-guo,Wang De-li.Multi-azi muth three-component surface seismic modeling for viscoeiasitic cracked monoclinic media[J].Applied Geophysics,2007,4(1):16~24.
[16]Hudson J A.Overall properties of a cracked solid[J].Math Proc Camb phil Soc,1980,88:371~384.
[17]Thomas B.Parallel3-D visco-elastic finite-difference modeling[J].Computers&Geoseciences,2002,28:887~899.
[2]易维启,李明,云美厚,等.时移地震方法概论[M].北京:石油工业出版社,2002.
[3]孙晶梅.储层地球物理研究的深入发展[C].第68届SEG年会论文集[A].北京:石油工业出版社,1999.
[4]黄绪德,郭正吾.致密砂岩裂缝气藏的地震预测[J].石油物探,2000,39(2):2~13.
[5]高希勤,侯安宁,白俊辉,等.利用P波源三分量VSP检测裂缝[J].石油地球物理勘探,1998,33(1):109~117.
[6]王新红.稠油热采的地震监测技术[J].石油地球物理勘探,1992,27(2):294~302.
[7]庄东海,许云,乌达巴拉.四位地震及其实施要求[J].石油天然气地质,1999,20(4):361~364.
[8]杨勤勇,钟炜.油气田开发中的思维地震技术[J].石油物探,1999,38(3):50~57.
[9]奚先,姚姚.随机介质模型的模拟与混合型随机介质[J].地球科学(中国地质大学学报),2002,27(1):67~71.
[10]姚姚,奚先.随机介质模型正演模拟及其地震波场分析[J].石油物探,2002,41(1):31~36.
[11]唐启军,韩立国,王恩利,等.基于随机各向同性背景的粘弹性单斜介质二维三分量正演模拟[J].西北地震学报,2009,31(1):35~39.
[12]Ramos-Martinez J,Ortega A A,Mc Mechan G A.3-Dseismic modeling for cracked media:shear-wave splitting at zero offset[J].Geophysics,2000,65(1):211~221.
[13]王德利,何樵登.裂隙型单斜介质中弹性系数的计算及波的传播特性研究[J].吉林大学学报(地球科学版),2002,32(2):91~96.
[14]王德利,何樵登,韩立国.裂隙型单斜介质中多方位地面三分量记录模拟[J].地球物理学报,2005,48(2):386~393.
[15]Wang En-li,Han Li-guo,Wang De-li.Multi-azi muth three-component surface seismic modeling for viscoeiasitic cracked monoclinic media[J].Applied Geophysics,2007,4(1):16~24.
[16]Hudson J A.Overall properties of a cracked solid[J].Math Proc Camb phil Soc,1980,88:371~384.
[17]Thomas B.Parallel3-D visco-elastic finite-difference modeling[J].Computers&Geoseciences,2002,28:887~899.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心