松辽盆地海坨子地区葡萄花油层沉积微相

Sedimentary microfacies of Putaohua oil-bearing layer, Haituozi area, Songliao Basin

:为预测葡萄花油层的油藏分布 ,综合应用岩心、录井、测井、地震及粒度分析资料 ,采用沉积学、地震地层学方法 ,阐明了松辽盆地南部海坨子地区葡萄花油层沉积微相特征 .葡萄花油层在研究区西部逐渐减薄、尖灭 ,乃至缺失 .沉积区由西向东依次发育河流相、三角洲相、湖泊相 .西部地层尖灭线附近的河道砂发育区可形成砂岩尖灭地层圈闭 。

Based on comprehensive application of core, logging, seismic and grain size analysis data, this paper has clarified the sedimentary microfacies of sandstone of Putaohua oil-bearing layer in Haituozi area, Songliao Basin. The strata of Putaohua oil-bearing Layer is thinning out gradually in west part of studied area. River, delta and lacustrine facies are developed in deposited area from west to east. The area riched river sandstone near the strata pinch out line probably forming stratigraphic trap, which is the favorable position of pool formation of Putaohua oil-bearing layer in studied area.