运用层序地层学模式预测河流相砂岩储层  

River-facies sand reservoir prediction using sequence stratigraphic pattern

作　　者：罗立民[1] 王英民[1] 李晓慈[2] 张学军[2] 

机构地区：[1]成都理工学院石油系 [2]新疆石油管理局准东勘探开发公司

出　　处：《石油地球物理勘探》1997年第1期130-136,共7页Oil Geophysical Prospecting

摘　　要：迄今为止，利用层序地层学理论研究陆相地层层序内部的岩性变化规律和对传集层的分布进行预测，仍是一个未能圆满解决的复杂问题。与海相环境不同，在陆相盆地中，影响沉积物可容空间的因素更为复杂多样，这主要裹现为河流平衡剖面对基准面的影响，以及气候和构造运动对沉积物的补给作用。本文根据准噶尔盆地东部地区储油砂体的地震反射特征，提出了利用三维地震资料追踪对比储层的相应模式，以准层序为单元的地震对比方案，成功地重构了河沈沉积在不同发育阶段的原始沉积而。在此基础上，利用反射地震资料的沿是振幅信息，即可有效地预测河流砂岩储层分布范围。It is still a troublesome problem so far for us to predict both the inside litholog-ic variation of land-facies sedimentary sequence and reservoir distribution by adopt-ing sequence stratigraphy theory. The influence factors on land-facies sedimentspace are more various and complicated than those on sea-facies sediments,which isincarnated mainly as the influence of river balanced section on the datum,and thesediment supplements from climate or tectonic movement.According to the seismic reflection characteristics of sand reservoir in the east-ern Zhungeer basin,we take both the pattern corresponding to 3D seismic reservoircorrelation and the seismic horizon correlation using pseudo-sequence as a unit to re-construct nicely the original deposional surfaces of river facies sediments in diffe-rent periods. As a result,river-facies sand reservoir can be ascertained by analysingthe seismic reflection amplitudes along the interested formations.

关 键 词：层序地层学 河流沉积 储层 油气预测 

分 类 号：P618.130.2[天文地球—矿床学]