Facies logging identification of intermediate-basic volcanic rocks in Huoshiling Formation of Songliao Basin

作     者：LI Yonggang YAN Bo LI Yonggang;YAN Bo

作者机构：Northeast Oil and Gas CompanySINOPECChangchun 130022China College of Earth SciencesJilin UniversityChangchun 130061China 

出 版 物：《Global Geology》 (世界地质（英文版）)

年 卷 期：2024年第27卷第2期

页      面：93-104页

学科分类：081801[工学-矿产普查与勘探] 081802[工学-地球探测与信息技术] 0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：Supported by projects of the National Natural Science Foundatio n of China(Nos.41972313 41790453) 

主　　题：Lishu fault-depression Huoshiling Formation volcanic lithofacies logging identification whole-coring well SN165C 

摘      要：Volcanic oil and gas reservoirs are generally buried deep,which leads to a high whole-well coring cost,and the degree of development and size of reservoirs are controlled by volcanic ***,accurately identifying volcanic facies by logging curves not only provides the basis of volcanic reservoir prediction but also saves costs during *** Songliao Basin is a‘fault-depression superimposed’composite basin with a typical binary filling *** types of volcanic lithologies and facies are present in the Lishu fault *** activity is frequent during the sedimentary period of the Huoshiling *** systematic petrographic identification of the key exploratory well(SN165C)of the Lishu fault-depression,which is a whole-well core,it is found that the Huoshiling Formation in SN165C contains four facies and six subfacies,including the volcanic conduit facies(crypto explosive breccia subfacies),explosive facies(pyroclastic flow and thermal wave base subfacies),effusive facies(upper and lower subfacies),and volcanogenic sedimentary facies(pyroclastic sedimentary subfacies).Combining core,thin section,and logging data,the authors established identification markers and petrographic chart logging phases,and also interpreted the longitudinal variation in volcanic petro-graphic response characteristics to make the charts more applicable to this area s volcanic petrographic interpretation of the Huoshiling *** charts can provide a basis for the further exploration and development of volcanic oil and gas in this area.