摘要
渤海湾盆地黄骅坳陷歧口凹陷西南缘沙一段下部为封闭—半封闭的湖湾相沉积环境,在沙一段下部的板2油组—板4油组沉积了一套白云岩储层。通过对该套储层系统地取心归位和描述,进一步明确了白云岩储层的分布特征。根据白云岩储层电性特征并结合分析化验资料,开展了岩性识别,建立了白云岩储层和油层电性识别图版;在此基础上利用铸体薄片鉴定及FMI成像测井资料分析了白云岩储层的孔隙类型,应用岩心物性分析、核磁共振、双侧向测井等资料探讨了裂缝、基质有效孔隙度和含油饱和度的计算。
The sedimentary environment of low part of Es1 in the southwest Qikou sag is closed and half- closed bend facies. There is a set of dolomite reservoir deposit from ban2 to ban4 oil layers. Through sys tematic sampling and description, we get the distribution of dolomite reservoir. We use the electric property and measured data of dolomite reservoir to do the lithologic discrimination, and then setup the identified pattern between electric property of dolomite reservoir and oil layers. Finally, we use the cast thin section and FMI imagery log information to determine the porosity type of dolomite reservoir. We also use the information about core physical property, nuclear magnetic resonance and dual lateral log to describe the fissure, matrix effective porosity and oil saturation calculation.
出处
《天然气地球科学》
EI
CAS
CSCD
北大核心
2010年第4期584-588,共5页
Natural Gas Geoscience
