CAJ | 학술논문

ZG气田位于印度尼西亚苏门达腊盆地,断块复杂,发育多种沉积相体系类型.基于沉积背景和碎屑岩储层类型,利用测井沉积相研究方法,选取自然伽马、自然电位、电阻率、密度测井曲线作为研究区测井沉积相研究的测井系列,结合岩心、录井、地震等资料,综合层序地层学等多学科,建立取心井段测井相岩-电转换模版,识别出ZG气田Lumut段发育扇三角洲、辫状河三角洲和湖泊3种沉积相类型,建立了各沉积相测井微相特征图版.研究认为,Lower Lumut层为扇三角洲-辫状河三角洲-湖泊沉积体系,Middle Lumut层为辫状河三角洲-浅湖沉积体系,Upper Lumut层为辫状河三角洲前缘-浅湖沉积体系,其中辫状河三角洲分流河道砂体为有利储层.
ZG기전위우인도니서아소문체석분지,단괴복잡,발육다충침적상체계류형.기우침적배경화쇄설암저층류형,이용측정침적상연구방법,선취자연가마、자연전위、전조솔、밀도측정곡선작위연구구측정침적상연구적측정계렬,결합암심、록정、지진등자료,종합층서지층학등다학과,건립취심정단측정상암-전전환모판,식별출ZG기전Lumut단발육선삼각주、변상하삼각주화호박3충침적상류형,건립료각침적상측정미상특정도판.연구인위,Lower Lumut층위선삼각주-변상하삼각주-호박침적체계,Middle Lumut층위변상하삼각주-천호침적체계,Upper Lumut층위변상하삼각주전연-천호침적체계,기중변상하삼각주분류하도사체위유리저층.
ZG Gas Field is located in Sumatra Basin of Indonesia with complex segments and multiple of depositional systems.Based on the background of deposition and clastic reservoir type,logging sedimentary facies study method is used to identify deposition facies by analyzing the characteristics of log series including GR,SP,R_(LLD) and DEN,combined with core,master log,seismic data,sequence stratigraphy,etc.The rocks-electrical switching models of core phase are established.Fan delta,braided delta and lake deposition facies are identified and different logging microfacies characters models of depositional facies are obtained.Analyzed and recognized fan delta-braided delta-lake depositional system was developed in Lower Lumut zone,braided delta-lake depositional system was developed in Middle Lumut zone and delta front-shallow lake depositional system braided was developed in Upper Lumut zone by studying characters of microfacies distribution.Braided delta distributary channel sand body is favorable reservoir.