辽河滩海新近系油气勘探前景探析  

Prospect Analysis of Neogene Oil and Gas Exploration in Liaohe Offshore

作　　者：吴兴录[1] 颜新林[1] 李鑫[1] WU Xing-lu;YAN Xin-lin;LI Xin(Research Institute of Exploration and Development,Liaohe Oilfield of CNPC,Panjin 124010,Liaoning,China)

机构地区：[1]中国石油辽河油田勘探开发研究院,辽宁盘锦124010

出　　处：《承德石油高等专科学校学报》2021年第1期1-6,11,共7页Journal of Chengde Petroleum College

基　　金：国家油气重大专项(渤海湾盆地精细勘探关键技术)下属专题(辽河坳陷增储领域地质评价与勘探实践):2016ZX05006005-002。

摘　　要：从盆地演化和新构造运动的特点及成藏地质条件等方面综合分析出发,对辽河滩海新近系的油气勘探前景进行了展望。研究表明:沉降中心由陆域向海域规律性转移、海域新构造运动较陆域更活跃等特点反映出海域成藏环境要优于陆域;富生烃洼陷、储集性能良好的河流成因砂体、区域性稳定分布的盖层、披覆背斜和扭动背斜为主的构造圈闭、以控凹断裂为主的通源断裂体系等配套成藏条件,揭示辽河滩海新近系具有形成规模型油气田的良好地质基础。最终提出了两类目标作为新近系油气勘探的战略主攻对象。Based on comprehensive analysis of basin evolution,Neotectonic movement and reservoir-forming geological conditions,this paper puts forward Neogene oil and gas exploration prospect in Liaohe offshore.The study shows that the subsidence center transfers from land area to sea area regularly and the Neotectonic movement in sea area is more active than that in land area.The matching reservoir forming conditions include hydrocarbon generating sag,fluvial sand body with good reservoir performance,cap rock with regional stable distribution,structural traps dominated by drape anticline and torsion anticline,and oil source fault system dominated by depression controlling faults.The above conditions reveal that the Neogene of Liaohe offshore has a good geological foundation for the formation of large-scale oil and gas fields.At last,two kinds of targets are proposed as the main targets of Neogene oil and gas exploration.

关 键 词：辽河滩海 新近系 油气勘探 地质条件 勘探前景 

分 类 号：TE155[石油与天然气工程—油气勘探]