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通过岩心、薄片、常规测井以及FMI成像资料多种手段,从火山岩岩性、电性、岩相特征、孔隙类型、储集层物性等方面开展了准噶尔盆地滴西地区石炭系火山岩储集层研究,并进行了火山岩地震相勘探方法及火山岩相平面分布特征研究。分析了火山岩储集层储集空间类型、物性特征以及其影响因素。区内火山岩储集层主要为酸性岩类及火山碎屑岩,孔隙类型为次生孔缝,储集空间为气孔、微裂缝。储集层物性影响因素主要有火山岩的岩性岩相、喷发环境及后期风化淋滤和断裂改造。
Based on various methods such as core, thin slice, conventional well logging and FMI imaging data, the Carboniferous volcanic reservoirs in the Xixi area of the Junggar Basin are developed from volcanic lithology, electrical property, lithofacies characteristics, pore types and reservoir physical properties. Research and volcanic seismic facies exploration methods and volcanic facies plane distribution characteristics. The types, physical properties and influential factors of volcanic reservoirs are analyzed. The volcanic reservoirs in the area are mainly acidic rocks and volcaniclastic rocks. The types of pores are secondary pores, and the reservoir space is pores and micro-fractures. The main influencing factors of reservoir physical property are lithologic and lithofacies of volcanic rocks, eruption environment and later weathering, leaching and fracture alteration.