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松辽盆地海坨子地区萨尔图油层三砂组沉积微相 被引量:4

Sedimentary microfacies of Saertu oil-bearing layer's 3rd sandstones assemblage, Haituozi Area, Songliao Basin
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摘要 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萨尔图油层三砂组沉积微相特征 .萨三砂组发育的沉积相有河流、湖泊和三角洲相 ,河流相可识别出点坝、天然堤、决口扇和河漫滩微相 ;湖泊相主要为浅湖亚相 ,其微相类型有混合坪、泥坪及砂坪微相 ;三角洲相识别出平原、前缘和前三角洲 3个亚相 .研究区西北角为无沉积区 ,河流相仅发育于王家炉西北侧 ,三角洲相发育于海 2 4井—海 5井一线以西 ,呈北西—南东向展布 ;河流相的河道、三角洲分流河道、河口坝、远砂坝等砂岩体发育于海 2 2井—王家炉等地及长发村南侧 ;海 2 4井—海 5井一线以东为浅湖沉积区 ,在海 14井、海 2 3井及海 11井东侧发育有浅湖砂坪沉积微相 .河道砂体、三角洲分流河道、河口坝砂体厚度和规模较大 ,具有较好的储集性能 。 Based on comprehensive application of core, logging, seismic and grain size analysis data, this paper has clarified the sedimentary Microfacies of Saertu oil\|bearing layer's 3rd sandstones assemblage in Haituozi area, Songliao Basin. Rivers, delta and lacustrine facies are developed in the area. Point bar, levee, crevasse and floodplain microfacies have been recognized in river facies. Lacustrine facies are mainly is shallow lake subfacies, sand\|mud\|mixed flat, mud flat and sand flat microfacies developed in it, and dominated by sand\|mud\|mixed flat. Delta plain, delta front and prodelta subfacies have been recognized in delta facies. The northwest corner of study area has no deposits, the river facies developed in northwest of Wangjialu, the delta facies distributed in the western of well Hai24-Hai5, stretched in NW-SE direction. River channel and deltaic distributary channel, channel\|mouth bar, distal bar sandstone bodies developed in Xingwang village\|well Tao25 and Hai22-Wangjialu, and southern of Changfa village. Shallow lake deposits developed to the east of well Hai24-Hai5, shallow lake sand flat microfacies developed near well Hai14, Hai23, Hai11 and Cha19. River channel and deltaic distributary channel, channel\|mouth bar sandstone bodies are big in thickness, size, porosity and permeability, which are favourable reservoirs for oil and gas.
出处 《大庆石油学院学报》 CAS 北大核心 2002年第4期4-6,共3页 Journal of Daqing Petroleum Institute
基金 中国石油天然气集团公司"九五"科学技术研究项目 (970 2 10 -0 3 -0 1)
关键词 松辽盆地 海坨子地区 萨尔图油层 三砂组 沉积微相 储层 Haituzi area Saertu bearing\|oil layer sedimentary microfacies reservoir
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  • 1李彦芳.松辽盆地头台地区薄层砂岩储层研究[M].北京:石油工业出版社,1993.46-64.

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