阜新改造型盆地油气评价及勘探方向  

HYDROCARBON EVALUATION AND EXPLORATION DIRECTION OF FUXIN REFORMED BASIN

作　　者：赵洪伟[1] 张德军[1] ZHAO Hong-wei;ZHANG De-jun(Shenyang Center of China Geological Survey,Shenyang 110034,China)

机构地区：[1]中国地质调查局沈阳地质调查中心,辽宁沈阳110034

出　　处：《地质与资源》2021年第3期306-316,共11页Geology and Resources

基　　金：国家自然科学基金“松辽盆地及邻区早白垩世陆相地层高精度年代格架”(编号41790451);国家重点基础研究发展计划项目“白垩纪中期松辽盆地及邻区陆相储集层与烃源岩研究”(编号2019YFC0605404);中国地质调查局项目“松辽盆地北部及外围石炭—二叠系油气地质调查”(编号DD20190097)、“冀北-辽西中新元古界油气地质调查”(编号DD20190098).

摘　　要：阜新盆地历经了多次构造运动改造,导致油气藏保存条件遭受断层破坏、油气多次动态散聚以及油气的多源性等特征.通过盆地改造类型、油气评价及勘探方向等方面研究,认为:1)阜新盆地属于整体抬升改造剥蚀型,主要的生储盖层九佛堂组、沙海组保存完好;2)油气评价应采用从原型盆地构造演化源控论正向分析与从保存单元评价保存和富集油气储层的反向认识相结合的思路;3)构造分析是研究的主线,内容包括建造定源、改造定带、保存控藏等3个主要方面;4)海州洼陷和伊吗图洼陷的原生油气藏是主要勘探方向.Fuxin Basin has undergone the reformation of multiple tectonic movements,leading to the damage of hydrocarbon reservoir preservation conditions by faults,hydrocarbon losses and multi-sources.Through the study on basin reformation type,hydrocarbon evaluation and exploration direction,it is considered that Fuxin Basin belongs to the overall uplifting,reformed and denuded type,with the main source-reservoir-cap rocks of Jiufotang Formation and Shahai Formation well preserved.The hydrocarbon evaluation should combine the"source-control theory"forward analysis of prototype basin tectonic evolution with the reverse understanding of"preservation unit"to evaluate preservation and enrichment of reservoir.Structural analysis is the key to the study,including determination of hydrocarbon sources by formation,determination of structural-sedimentary facies belts by reformation,and reservoir controlling by preservation.The primary hydrocarbon reservoirs in Haizhou subsag and Yimatu subsag are the main exploration directions.

关 键 词：阜新盆地 改造型 油气评价 源控论 保存单元 勘探方向 辽阜地2井 

分 类 号：P618.13[天文地球—矿床学] TE155[天文地球—地质学]