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基于随机单斜介质的井间时延地震记录模拟

Simulation Based on Cross-hole Time-Lapse Seismic Record of Random Monoclinic Media

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【作者】 唐启军韩立国窦喜英王恩利刘前坤

【Author】 TANG Qi-jun,HAN Li-guo,DOU Xi-ying (College of Geoexploration Science and Technology,Jilin University,Changchun 130026,Jilin,China)WANG En-li (Northwest Branch,PetroChina Exploration and Development Research Institute,Lanzhou 730020,Gansu,China)LIU Qian-kun (China Aero Geophysical Survey and Remote Sensing Center,Beijing 100083,China)

【机构】 吉林大学地球探测科学与技术学院中国石油勘探开发研究院西北分院中国国土资源航空物探遥感中心

【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。

【Abstract】 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.

【基金】 国家“973”规划项目(2007CB209603)
  • 【文献出处】 石油天然气学报 ,Journal of Oil and Gas Technology , 编辑部邮箱 ,2010年02期
  • 【分类号】P631.44
  • 【下载频次】59
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