基于模拟退火地震反演技术——以X油田某区为例  

Seismic Inversion Technology Based on Simulate Anneal Method——a case study from some area in x oilfield

作　　者：李占东[1] 李萌[1] 刘赛[1] 刘岩[2] 

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318 [2]东北石油大学地球科学学院,黑龙江大庆163318

出　　处：《数学的实践与认识》2014年第5期134-141,共8页Mathematics in Practice and Theory

基　　金：863计划项目"高精度可控震源技术"所属课题"海量三维地震数据深层成像技术与装备(SS2012AA060203)"

摘　　要：为了提高地震反演预测的分辨率和可信度,提出了线性反演与非线性反演二者相结合的反演方法——以稀疏脉冲反演结果为约束背景的基于模拟退火的反演方法,阐述了基于模拟退火法的反演机理,并以X油田某区为例,开展了基于模拟退火地球物理反演预测,从反演分辨率、可信度和误差三个方面进行分析和定量研究.结果表明,非线性的随机反演与线性反演相结合有效地提高了反演分辨率,纵向上能够精细到单砂体级,反演结果多个概率的实现最大程度上降低反演的多解性,并且,反演结果的精度较高,2m以上砂岩反演符合率均在90%以上.In order to improve the resolution and credibility of seismic inversion, we proposed a inversion method of a combination of both linear and nonlinear inversion - in the constraints background of sparse pulse inversion results and based on the invertion method of simulated annealing, describing the inversion mechanism based on simulated annealing method, and in X oilfield certain district as an example,we carry out geophysical inversion predicted which based on simulated annealing, from inversion resolution, reliability and error these three aspects to analysis and quantitative research. The results show that the nonlinear stochastic inversion combined with linear inversion effectively improve the resolution of invertion, and it can be refined to a single sand body level in the longitudinal direction, the realization of the multiple probability of invertion results, minimizes the inversion of multiple solution, and the high precision of inversion results, the sandstone above 2m the inversion compliance rate above 90%.

关 键 词：线性反演 模拟退火 储层预测 分辨率 单砂体 

分 类 号：P631.4[天文地球—地质矿产勘探] P618.13[天文地球—地质学]