An example of fluvial facies sandstone reservoir in a waterflood oilfield at stage of moderate-high water cuts is taken for this study, and perfect effectiveness for application is obtained.
结合实际以某注水开发中后期油田的河流相砂岩储集层为例展开研究，应用效果较为理想。
It is very difficult to forecast the thin and narrow sandstone of fluvial facies because of the limit of seismic distinguish ment.
受到地震分辨率的限制，河流相薄而窄的砂体展布很难预测。
Major sedimentary facies in the Huanhe-Huachi Formation include lacustrine facies, delta facies, meandering fluvial facies, and interbedded eolian sandstone facies.
而在环河华池组主要沉积了湖相、三角洲相、曲流河相及风成砂岩夹层。
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