模拟退火法剩余静校正在山地资料处理中的应用  

Application of the residual statics of the simulated annealing method on mountainous data processing

作　　者：何鑫[1] 李苏光[1] 李晓英[1] 

机构地区：[1]中国石化勘探南方分公司勘探研究院

出　　处：《油气地球物理》2012年第2期64-65,68,共3页Petroleum Geophysics

摘　　要：南方某山地资料由于地表高程起伏大,表层结构纵横向变化剧烈,岩性纵横向变化大,有些甚至是老地层出露,信噪比低,层析静校正后仍残留有大的剩余静校正量,常规的地表一致性剩余静校正方法对该地区的剩余静校正处理效果不理想。本文介绍了模拟退火法剩余静校正技术在该地区地震资料处理中的应用情况,该方法是一种全局收敛的方法,它不但克服了线性算法的地表一致性剩余静校正法局部收敛不足的缺点,而且对低信噪比资料有很好的稳定性,在低信噪比山地资料剩余静校正处理中取得了显著的效果。A great number of the value of residual statics remain in the data after processed by the tomographic statics because of fluctuating surface elevation, dramatic changing of sub-surface structure and lithology, even some old strata are exposed in some places, so the S/N of the data in the area is low. The data processed by the traditional surface consistent residual statics is not good. This paper introduces the application of the annealing residual statics in this processing. The simulated annealing is a method of global convergence, not only overcoming the defect that the local convergence is deficient in the surface consistent residual statics based on linear method, but also has very good stability for low S/N data and obtained a good result in the low S/N mountainous seismic data processing.

关 键 词：模拟退火法 剩余静校正 山地资料处理 

分 类 号：P631.443[天文地球—地质矿产勘探]