鄂尔多斯盆地东部张台区长6油层组沉积微相特征与控油因素分析Study on sedimentary microfacies and oil-controlling factors of Chang-6 reservoirs in Zhangtai area,Eastern Ordos Basin
孟选刚,单旭光,代晓旭,李沼,朱海涛,王宝萍
摘要(Abstract):
位于鄂尔多斯盆地东部的张台区主要产油层段长6油层组的岩性以浅灰色、灰色细粒长石砂岩为主,夹深灰色、灰黑色泥页岩。通过岩心观察、薄片鉴定、粒度分析和物性分析认为,长6油层组砂岩储层为湖泊三角洲沉积产物,发育三角洲平原和三角洲前缘两大亚相类,有多种微相。油层分布主要受沉积特征控制,水上、水下河道砂体是最主要的含油部位,但同时局部也受其他因素的影响。
关键词(KeyWords): 沉积微相;油气分布;延长组;张台区;鄂尔多斯盆地
基金项目(Foundation): 国家自然科学基金(编号:41102083)
作者(Author): 孟选刚,单旭光,代晓旭,李沼,朱海涛,王宝萍
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