CAJ | 학술논문

俄罗斯萨哈林3号V区块位于东萨哈林-鄂霍茨克盆地中南部,是中俄第一个油气勘探合作项目,主要勘探层系中新统发育海相三角洲沉积体系,沉积相以三角洲前缘、前三角洲以及浅海相为主,构造演化主要经历了晚白垩世-古近纪的裂谷期、渐新世中晚期-上新世早期的转换拉伸期和早上新世以后-近代的转换拉伸期3个阶段,形成了近南北走向、东西分带的"两隆三凹"的构造格局.烃源岩以达耶-胡林组硅质页岩、威宁组和奥科贝凯组暗色泥岩为主,有机质丰度高,生烃能力强.中新统两套储盖组合为油气的聚集和保存提供了有利条件.圈闭类型以断层控制的背斜和断背斜为主.研究表明,油气的生成、运移、储盖组合、圈闭形成、保存条件等成藏配置关系合理,油气主要富集于两个构造带上,分别是维尼背斜构造带和南阿雅什构造带.
아라사살합림3호V구괴위우동살합림-악곽자극분지중남부,시중아제일개유기감탐합작항목,주요감탐층계중신통발육해상삼각주침적체계,침적상이삼각주전연、전삼각주이급천해상위주,구조연화주요경력료만백성세-고근기적렬곡기、점신세중만기-상신세조기적전환랍신기화조상신세이후-근대적전환랍신기3개계단,형성료근남북주향、동서분대적"량륭삼요"적구조격국.경원암이체야-호림조규질혈암、위저조화오과패개조암색니암위주,유궤질봉도고,생경능력강.중신통량투저개조합위유기적취집화보존제공료유리조건.권폐류형이단층공제적배사화단배사위주.연구표명,유기적생성、운이、저개조합、권폐형성、보존조건등성장배치관계합리,유기주요부집우량개구조대상,분별시유니배사구조대화남아아십구조대.
Block V,located in the south-central of East Sakhalin-Okhotsk basin in Russia,has one major Eocene deltaic sedimentary systems.The main sedimentary facies include delta front,prodelta plain and shallow marine facies.Block V experienced three main tectonic evolution phases including the rifting,transformation tensile,and inversion.The tectonic framework of the Block V is characterized by NS-trending and EW-zoning"two uplifts and three depressions".The quality marine source rocks in Block V are dominated by the Dae-Khurye formation siliceous shale in Oligocene,Uyni-Dagi formation dark shale in Lower Miocene and Okobykai-Nutovian Forma-tion dark shale in Middle Miocene.They feature in high organic abundance and strong hydrocarbon potential.Moreover,two reservoir-seal cap combinations in Miocene provide favorable conditions for effective hydrocar-bon accumulation and preservation.The main trap style in Block V is anticline trap controlled by faults.Study of thermal evolution of source rocks indicates that the timing of hydrocarbon generation,migration,trap formation and reservoir--seal cap combination is rational.The potential plays of Block V mainly occur in two structural belts including Veni anticline belt and South-Ayash anticline belt.