收稿日期: 2010-03-07
修回日期: 2010-05-27
网络出版日期: 2010-08-10
Identification of Lake Facies Dolomite Reservoir and Parameter Determination of Reserves Calculation in Es1 of Southwest Qikou Sag
Received date: 2010-03-07
Revised date: 2010-05-27
Online published: 2010-08-10
刘玉梅, 刘艳芬, 彭彬, 张绍辉, 周育文, 谭守强, 赵同泽 . 歧口凹陷西南缘沙一段湖相白云岩储层识别及储量参数计算[J]. 天然气地球科学, 2010 , 21(4) : 584 -588 . DOI: 10.11764/j.issn.1672-1926.2010.04.584
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 systematic 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.
Key words： Dolomite; Matrix porosity; Fracture porosity; Saturation.
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