利用模拟退火算法实现地震叠前反演  

Using simulated annealing algorithm to pre-stack seismic inversion

作　　者：刘全新[1] 方光建[1] 

机构地区：[1]中国石油勘探开发研究院西北分院

出　　处：《岩性油气藏》2010年第1期87-92,共6页Lithologic Reservoirs

摘　　要：讨论了叠前同步反演和模拟退火算法的基本原理,介绍了利用模拟退火算法实现叠前同步反演的技术流程,把实现叠前同步反演分为高保真地震数据处理、共角度道集生成、子波提取和同步反演四大步骤,并重点叙述了模拟退火算法在叠前同步反演中的应用。该方法在苏里格气田砂岩分布及有利含气区预测的应用结果,验证了其有效性,同时表明该方法具有运算速度快、算法稳定、预测效果好等特点。The principle of pre-stack simultaneous inversion and simulated annealing algorithm is discussed. It introduced the technical process to achieve the pre-stack simultaneous inversion using simulated annealing algorithm, and departed the process into four steps： high-fidelity seismic data processing, common angle gather generation, wavelet extraction and synchronous inversion. The application of simulated annealing algorithm in pre-stack simultaneous inversion is described. This method was proved in Sulige Gas field, and the result shows the features： fast calculation, stable algorithm and good prediction effect. Forecasting results verify the effectiveness of this proposed method.

关 键 词：模拟退火 子波 弹性波阻抗 叠前同步地震反演 地震数据 

分 类 号：P631.4[天文地球—地质矿产勘探]