柴达木盆地北缘柴页1井中侏罗统大煤沟组页岩储层测井评价

发布时间：2018-06-05 15:52

本文选题：中侏罗统 + 页岩气　；参考：《地质通报》2016年Z1期

【摘要】：页岩储层测井评价是后期压裂改造工程的基础,通过分析柴页1井常规测井曲线特征,结合特殊测井和岩心样品分析化验数据,综合评价了中侏罗统大煤沟组页岩岩性、物性、地球化学、含气性、可压裂性等特征,获得了储层评价及工程改造参数。柴页1井中侏罗统大煤沟组至少发育128.1m厚的富有机质页岩,具有高伽马、高声波时差、高中子、高电阻、低密度的特点;测井计算有利的富有机质页岩的总有机碳含量介于3.20%~4.20%之间,总含气量介于1.50~4.50m3/t之间,有利页岩层段脆性矿物含量介于45%~75%之间,划分出3个有利层组,第Ⅰ层组和第Ⅱ层组具有杨氏模量高、泊松比低的特点,有利于后期射孔压裂。
[Abstract]:The logging evaluation of shale reservoir is the basis of the later fracturing reconstruction engineering. By analyzing the characteristics of conventional logging curves in Chaiping1 well, combining with the special logging and core sample analysis data, the shale lithology and physical properties of the Dachaigou formation in the Middle Jurassic are comprehensively evaluated. The characteristics of geochemistry, gas bearing and fracturing are obtained, and the reservoir evaluation and engineering reconstruction parameters are obtained. At least 128.1m thick organic shale is developed in Dawagou formation of Middle Jurassic in Chaiping1 well, which has the characteristics of high gamma, high sonic time difference, high resistance and low density. The total organic carbon content, total gas content and brittle mineral content of the favorable organic shale are between 3.20% and 4.20%, and the total gas content is between 1.50~4.50m3/t and 45%, respectively. The first layer and the second layer have the characteristics of high Young's modulus and low Poisson's ratio, which is beneficial to later perforation fracturing.
【作者单位】：中国地质调查局油气资源调查中心;中国石油青海油田勘探事业部;
【基金】：中国地质调查局项目(编号:1212011221045,12120113040000)
【分类号】：TE357;P631.81

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