南阳凹陷南部陡坡带成藏规律及有利勘探目标预测  

Reservoir-forming rule and favorable exploration target in south steep slope of Nanyang sag

作　　者：蔡佳 甘华军[2,3] 印斌浩 

机构地区：[1]中海石油研究总院,北京100027 [2]中国地质大学(武汉)资源学院,湖北武汉430074 [3]中国地质大学(武汉)构造与油气资源教育部重点实验室,湖北武汉430074

出　　处：《油气地质与采收率》2012年第3期22-24,28,共4页Petroleum Geology and Recovery Efficiency

基　　金：国家自然科学基金资助项目"典型断陷富油气凹陷层序构成样式的差异性研究"(40872077)

摘　　要：通过对南阳凹陷南部陡坡带成藏主控因素的分析,认为烃源岩、断层、砂岩储集体分布及其物性是油气成藏的主控因素。油气生烃中心控制着油气藏的分布,靠近南阳凹陷南部沉降中心的储集体具有较优越的油源条件,以发育断层控制的构造油气藏为主;断裂在油气运移、聚集及成藏过程中主要起输导及局部侧向遮挡的作用,断层是否封闭是其成为油气运移通道的关键;研究区油气藏主要分布于三角洲前缘部位,储层含油气性与其物性特征具有良好的相关性。总结出南阳凹陷南部陡坡带的油气成藏规律,晚期混源的油气沿断层垂向运移和砂层侧向运移聚集成藏,并根据多项评价指标及勘探程度提出了1个有利的勘探目标,即位于边界断裂下降盘边缘的核三段一亚段砂体(砂体Ⅰ)。The main controlling factors of oil and gas reservoir in south steep slope of Nanyang sag is hydrocarbon source rock, fault,sand reservoir body and physical properties based on the analysis.The distribution of oil and gas reservoir is controlled by center of hydrocarbon source rock,the structural reservoir has the predominant position controlled by fault,and fault acts as the transportation channel and partial sealing effect in hydrocarbon accumulation,delta front is the favorable fields of oil reservoir, and it has good correlation between the oil-gas possibility and characteristics of pore permeability.Two types of reservoir-forming model are summed up and one favorable exploration target is proposed based on the study.

关 键 词：成藏规律 主控因素 有利目标 南部陡坡带 南阳凹陷 

分 类 号：TE112[石油与天然气工程—油气勘探]