叠前高精度反演方法在复杂岩性储层预测中的应用  

Prestack high precision inversion method and its application in complex lithologic reservoir prediction

作　　者：王振涛[1] 王玉梅[1] 慎国强[1] 孟宪军[1] 刘立彬[1] WANG Zhen-tao;WANG Yu-mei;SHEN Guo-qiang;MENG Xian-jun;LIU Li-bin(Geophysical Research Institute of Shengli Oilfield Branch Co.,Dongying Shandong 257022,China)

机构地区：[1]胜利油田分公司物探研究院

出　　处：《油气地球物理》2020年第1期9-15,共7页Petroleum Geophysics

基　　金：国家重点研发计划“深层钾盐地震识别技术研究”（2017YFC0602804-03）

摘　　要：叠前地震反演技术是挖掘叠前信息提高储层预测能力的重要技术手段。叠前反演方法的理论基础是Zoeppritz方程,基于该方程简化式的反演方法误差大,精度低,通过构建非线性叠前反演目标函数和直接基于Zoeppritz方程推导构建雅克比偏导矩阵,研究形成了叠前高精度反演方法。在胜坨南沙河街砂岩储层预测中开展了实际应用,通过叠前地震资料优化处理、高精度叠前地震反演以及基于岩石物理多参数解释技术的应用,提高了复杂岩性区储层预测能力。The pre-stack seismic inversion technology is an important technique for digging up the prestack information to improve the reservoir prediction ability. The theoretical basis of the prestack inversion method is the Zoeppritz Equation. The inversion method based on the simplified equation may lead to large error and low precision.The prestack high precision inversion method is developed by constructing the objective function of nonlinear prestack inversion and constructing Jakobi partial derivative matrix directly based on the derivation of the Zoeppritz Equation. It has been applied in the sandstone reservoir prediction of Es in Shengtuo area. The results show that the reservoir prediction ability in complex lithology area is improved by the optimizing processing of prestack seismic data, high precision prestack seismic inversion and multi-parameter interpretation technology based on petrophysics.

关 键 词：叠前反演 弹性参数 ZOEPPRITZ方程 叠前道集 储层预测 

分 类 号：G63[文化科学—教育学]