坳陷湖盆浅水三角洲沉积特征与油气成藏研究——以饶阳凹陷蠡县斜坡为例
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摘要
浅水三角洲是大规模岩性油气藏发育的基础,其形成的弥散状分布的砂体和频繁进退的湖平面是大规模岩性地层圈闭形成的有利条件。在岩心精细描述的基础上,利用测井、地震等地球物理手段,分析饶阳凹陷蠡县斜坡沙河街组沉积相类型及成因,建立了浅水三角洲的沉积模式,为在构造圈闭不发育的背景下寻找岩性、地层油气藏提供了勘探方向。
Shallow-water delta is fundamental for development of large scale lithologic reservoirs.Dispersed distribution of sands and frequent transgression-regression of lake level are favorable conditions of forming lithologic-stratigraphic traps.Sedimentary facies and genesis are analyzed for the Shahejie formation in Lixian slope in Raoyang depression based on detailed core description in conjunction with logging and seismic methods.A depositional model of shallow-water delta has been built.This research provides exploration guide for finding lithologic and stratigraphic reservoirs in regions where structural traps were not developed.
Shallow-water delta is fundamental for development of large scale lithologic reservoirs.Dispersed distribution of sands and frequent transgression-regression of lake level are favorable conditions of forming lithologic-stratigraphic traps.Sedimentary facies and genesis are analyzed for the Shahejie formation in Lixian slope in Raoyang depression based on detailed core description in conjunction with logging and seismic methods.A depositional model of shallow-water delta has been built.This research provides exploration guide for finding lithologic and stratigraphic reservoirs in regions where structural traps were not developed.
引文
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[9]王建功,天琦,卫平生,等.大型坳陷湖盆浅水三角洲沉积模式——以松辽盆地北部葡萄花油层为例[J].岩性油气藏,2007,19(2):28-34.
[10]张昌民,尹太举,朱永进,等.浅水三角洲沉积模式[J].沉积学报,2010,28(5):933-944.
[2]柳成志,辛仁臣,王刚.松辽盆地北部头台地区扶余油层浅水湖泊三角洲沉积特点[J].大庆石油学院学报,1998,22(1):68-70.
[3]余逸凡,戴胜群,尹太举,等.鄂尔多斯盆地下寺湾油区延长组浅水三角洲沉积研究[J].特种油气藏,2009,16(5):28-31.
[4]邹才能,赵文智,张兴阳,等.大型敞流坳陷湖盆浅水三角洲与湖盆中心砂体的形成与分布[J].地质学报,2008,82(6):813-825.
[5]刘柳红,朱如凯,罗平,等.川中地区须五段—须六段浅水三角洲沉积特征与模式[J].现代地质,2009,23(4):667-675.
[6]Reading H G.沉积环境和相[M].周明鉴,等译.北京:科学出版社,1986:127-133.
[7]杨帆,于兴河,张峰,等.冀中坳陷饶阳凹陷蠡县斜坡带层序地层发育模式及主控因素[J].岩相古地理学报,2010,12(1):82-89.
[8]杨帆,于兴河,李胜利,等.冀中坳陷蠡县斜坡油藏分布规律与主控因素研究[J].石油天然气学报,2010,32(4):37-41.
[9]王建功,天琦,卫平生,等.大型坳陷湖盆浅水三角洲沉积模式——以松辽盆地北部葡萄花油层为例[J].岩性油气藏,2007,19(2):28-34.
[10]张昌民,尹太举,朱永进,等.浅水三角洲沉积模式[J].沉积学报,2010,28(5):933-944.
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