剩余时差校正及泊松比反演
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
利用突出泊松比变化的Shuey简化方程推导出逐点计算泊松比的反演公式.在泊松比反演之前,对地震数据进行剩余时差校正,可以使振幅随炮检距(或入射角)的变化趋势更明显,可以提高反演的精度.通过对理论模型及实际资料的处理,说明这种反演方法是可行的,由反演结果可以预测低泊松比异常,寻找天然气.
The Poisson's ratio inversion formula is derived from reduced Shuey equation which stresses Poisson's ratio change.Residual moveout correction to seismic data will make the change trend of the amplitude versus offset(or incident angle) more obvious than before Poisson's ratio inversion.It can improve the precision of inversion.Though the treatment to theory models and real data,this inversion method is proved practicable.Low Poisson's ratio anomalies can be predicted and natural gas can be found from inversion results.
引文
[1]顾汉明,江涛,王家映.改进快速模拟退火方法进行AVO岩性参数反演[J].地球科学—中国地质大学学报,1999,24(4):418~422.
    [2]刘斌,席道瑛,葛宁洁,等.不同周压下岩石中泊松比的各向异性[J].地球物理学报,2002,45(6):880~890.
    [3]Shuey R T.A simplification of the Zoeppritz Equations[J].Geophysics,1985,50(4):609~614.
    [4]殷八斤,曾灏,杨在岩.AVO技术的理论与实践[M].北京:石油工业出版社,1995.68~86.
    [5]林伯香,孙建国.相位替换法剩余时差校正[J].石油物探,2001,40(3):15~22.
    [6]Eugene Lichman.Automated phase-based moveout correction[A].In:Expanded Abstract of 69th SEG Mtg[C],1999,1150~1153.
    [7]冯贤钟,顾万勇.一种AVO反演泊松比的方法[J].石油物探,1994,33(3):1~7.

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