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。%Petrophysical evaluation of shale reservoirs is the basis of the fracturing project. The drilling project of Chaiye 1 well was or⁃ganized by China Geological Survey in 2013. The results of conventional logging and element capture spectroscopy of Chaiye1 well provided data for shale gas exploration and development of Qaidam Basin. Based on the open hole logging data, core analysis data, li⁃thology, physical properties, geochemical characteristics, gas-bearing properties and geomechanics, this paper has summarized reser⁃voir evaluation and fracturing characteristics. The organic-rich shale with high gamma, high acoustic, high neutron, high resistivity, low density features at least has the thickness of 128.1m, the total organic carbon content is between 3.20%and 4.20%, the total gas content is between 1.50~4.50m3/t, and the brittle mineral content is between 45%and 76%, as shown by the result of petrophysical evaluation. In addition, three potential layers are recognized in Chaiye1 well, with the shale in Ⅰ and Ⅱ intervals characterized by high Young's modulus and low Poisson's ratio being most favorable for perforation optimization design.
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