基于地震层速度的储层物性预测方法——以WJG地区S_4~上纯下亚段为例  

The prediction of reservoir based on the seismic horizon velocity——A case study for Chunxia Member in WJG area

作　　者：罗荣涛[1] 

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》2012年第2期13-16,共4页Petroleum Geophysics

摘　　要：基于层速度的储层物性预测方法,能够利用地震资料覆盖范围广的优势,有效弥补测井资料横向上分辨率的不足。本文利用地震层速度方法预测研究区纯下亚段地层的砂岩百分含量,在已钻井区建立层速度与孔隙度的相关关系,利用层速度横向预测孔隙度,对层速度与砂岩百分含量、孔隙度等物性的关系进行探索,并形成了一套利用层速度对储层物性进行预测的技术方法。The prediction method of reservoir prediction based on the bed velocity and the advantage of wide seismic coverage can make up the shortage of vertical definition of well logging. The percentage of sand in Chunxia formation is predicted in this paper. In the condition of lacking porosity, the horizon velocity is normalized. The relationship between the horizon velocity and the porosity is made in the study area. And the horizontal porosity is also predicted. The relationship between horizon velocity and percentage of sand and porosity is explored to form a prediction method for horizon velocity in this area.

关 键 词：层速度 归一化 储层物性预测 WJG地区 

分 类 号：P618.130.2[天文地球—矿床学]