滴南凸起石炭系油气勘探再突破条件分析  

Carboniferous Oil and Gas Exploration Breakthrough Condition Analysis of Di'nan Bulge

作　　者：赖世新[1] 李艳平[1] 宁良[1] Lai Shixin;Li Yanping;Ning Liang(Research Institute of Exploration and Development,Xinjiang Oilfield Company,PetroChina,Urumqi,Xinjiang,830011,China)

机构地区：[1]中国石油新疆油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《新疆地质》2018年第4期490-496,共7页Xinjiang Geology

摘　　要：为寻找滴南凸起勘探新突破,展开系统的石油地质条件综合分析研究,认为滴南凸起发育演化始于早石炭世谢尔普霍夫期,伴随发育滴水泉北断裂等多条高角度逆冲断裂,滴南凸起分化发育为北次凸、中部凹槽、西南次凸和东南次凸。研究区内下石炭统滴水泉组发育暗色泥岩、砂岩、红色泥岩和砂砾岩为主的4个岩性段,松喀尔苏组下亚组主要发育各种火山岩层,上亚组主要为暗色泥岩、碳质泥岩夹火山岩,上石炭统巴塔玛依内山组(以下简称巴山组)发育玄武岩、安山岩和流纹岩等火山岩层。地化分析表明,具良好生烃潜力的滴水泉组和松喀尔苏组上亚组,在滴南凸起及周边凹陷进入成熟、高成熟和过成熟演化阶段,为凸起石炭系松喀尔苏组下亚组和巴山组火山岩圏闭天然气成藏提供了充足油气来源。除北次凸卡拉麦里气田和中部凹槽m6、m8井获得勘探成功外,东南次凸和北次凸中东部可能是滴水泉组自生自储油气勘探突破的新领域。In order to find a new breakthrough of oil and gas exploration in the Di’nan bulge,analyzed the petroleum geology condition of the unfolding system.It is believed that the development and evolution of the Di’nan bulge began with the Early Carboniferous,Along with the development of Multiple high Angle thrust faults such as the Dishuiquan north faults,The differentiation development of Di’nan bulge into north minor convex,central groove and Southwest minor convex and southeast convex.In the study area,the Carboniferous Dishuiquan group develop four lithologic section such as dark mudstone,sandstone,red mudstone and glutenite,the under subgroup of Songkaersu formation mainly develop of volcanic rock,the upper subgroup of Songkaersu formation mainly develop the dark mudstone,carbonaceous mudstone and other sedimentary strata,upper Carboniferous Batamayineishan formation develop basalt Andesite and rhyolitic volcanic rock formation,Geochemical analysis shows that Dishuiquan formation and Songkaersu formation have good potential of hydrocarbon generation,and turn into the maturity,high mature and over mature stage of evolution in Di’nan bulge and surrounding sag,which provide fully oil and gas resource for natural gas reservoir forming,In addition to the success exploration of Kelamaili field and m6,m8,Southeast minor convex and the east-central of north minor convex may be the new field of oil and gas exploration in Dishuiquan formation.

关 键 词：滴南凸起 石炭系 构造演化 烃源岩 成藏 新领域 

分 类 号：P618.13[天文地球—矿床学]