松辽盆地徐深气田汪深1—达深3区块深层火山岩酸性、中基性都比较发育,岩性难于识别,岩相不易划分。在岩心观察、镜下鉴定和全岩分析进行火山岩岩性判别基础上,利用常规测井、电成像测井资料结合录井地震资料进行了全井段岩性识别。研究结果:识别出爆发相、溢流相、火山通道相和火山沉积相等4种火山岩岩相和11种亚相,亚相包括爆发相中的空落亚相、热碎屑流亚相、热基浪亚相,溢流相中的下部亚相、中部亚相、上部亚相,火山通道相中的火山颈亚相、次火山亚相、隐爆角砾亚相,火山沉积相中的再搬运亚相、含外碎屑亚相。 The deep volcanic rocks in Wangshen-Dadaoshan Block 3 of the Xushen Gas Field in Songliao Basin are relatively acidic and medium in nature, and their lithology is difficult to be identified and their lithofacies can not be easily separated. On the basis of core observation, microscopic identification and whole rock analysis, the lithology identification of volcanic rocks was made based on the logging data of conventional logging and electrical imaging combined with logging seismic data. The results show that four volcanic rock facies and 11 subfacies are identified as explosive facies, overflow facies, volcanic channel facies and volcanic sedimentary facies. The subfacies include emplacement subfacies in the explosive facies, hot-melt flow subfacies, hot The Kilun subfacies, the lower subfacies in the overflow phase, the middle subfacies, the upper subfacies, the volcanic neck subfacies in volcanic channel facies, the subvolcanic subfacies, the cryptoexplosive breccia subfacies, and the volcanic sedimentary facies Carrying subfacies, including the outer clastic subfacies.