王府断陷火石岭组火山岩岩性及岩相识别

王府断陷火山岩岩性及岩相复杂,利用常规方法识别难度较大。为了提高王府断陷火石岭组火山岩岩性及岩相识别的可靠性,文中从火石岭组不同类型火山岩储层的岩心观察出发,对岩石薄片、测井资料等进行详细分析,总结了火山岩储层的测井响应特征,提出了适应本区的火山岩岩性及岩相识别方法。研究中充分利用常规测井及特殊测井资料识别火山岩岩性的结构构造,并通过测井相、地震相综合标定,建立该区典型的火山岩岩相、测井相和地震相模式,从而进一步识别火山岩岩石结构构造特征。该方法对王府断陷火山岩研究具有较好的指导意义。

Identification of volcanics reservoir lithology and lithofacies in Huoshiling Formation of Wangfu fault depression

It is difficult to identify the complex lithology and lithofacies by conventional methods in Huoshiling Formation of Wangfu fault depression.In order to improve the reliability of this identification,this paper summarized the logging response characteristics through the detailed analysis of typical rock slices and logging data based on the core observation of volcanic reservoirs from different types,and an identification method of volcanic rock lithology and lithofacies is put forward for this area.The conventional and special logging data were fully used to identify the lithologic structure of volcanic rocks,and through calibration of log and seismic facies,a geological model including typical volcanic rock facies,log facies and seismic facies was established,which can effectively guide exploration and development in Wangfu fault depression.