泌阳凹陷北坡油气富集规律与二次勘探潜力分析  

Oil and Gas Enrichment Rules and Analysis on Secondary Exploration Potential in the Noruh Slope of Biyang Depression

作　　者：蔡佳[1] 罗家群[2] 李连生[2] 姜华[1] 李国良[1] 廖计华[1] 夏存银[1] 陈少平 

机构地区：[1]中国地质大学(武汉)资源学院,湖北武汉430074 [2]河南油田分公司勘探开发研究院,河南南阳473132 [3]中海石油研究中心,北京100027

出　　处：《石油天然气学报》2007年第6期25-28,共4页Journal of Oil and Gas Technology

摘　　要：泌阳凹陷北部斜坡带是油气大规模运移的指向地区,受鼻状构造、断层和砂体的影响,该带以复杂断鼻断块、断层-岩性和断层-不整合油气藏为主。在划分泌阳凹陷北部斜坡带油藏类型和分析其分布特征的基础上,建立了北部斜坡的成藏模式,分为3类:汇集式运聚成藏模式;沿断层运聚成藏模式;斜坡自生自储式成藏模式。总结了北部斜坡油气富集规律,即是油气富集于继承性的沉积-构造斜坡的鼻状隆起区,斜坡内带和凹陷中心则是形成低位扇岩性油气藏和断层-岩性油气藏的有利地区。根据以上分析,该区带二次油气勘探存在3大领域,有望探明一定规模的石油地质储量,对油田的增产上储有重要的意义。The northern slope zone in Biyang Depression was the guiding area of large-scale of oil and gas migration.It was reflected by fault-nose structures,faults and sand bodies.There were various kinds of reservoirs,within which fault-nose,fault-block,fault-lithology and fault-unconformity were the main types.On the basis of dividing the types of oil and gas pools and analyzing their distribution characteristics,the oil and gas accumulation models of the northern slope region were built,the accumulation models were divided into three types:such as convergent type,accumulating along the faults,forming model of self-generating and self-preserving reservoirs in the slope region.The rules of oil and gas accumulation in the northern slope region were summed up,gas could be accumulated in the nose uplift of the inherited sedimentary structural slope,internal belt of the slope region and the center of the depression were beneficial areas of low fan-lithologic and fault-lithologic reservoirs.According to the analysis above,it is concluded that there are three areas for secondary oil exploration,it is very hopeful to find some geological reserves and it is of great significance for improving oilfield production output and reserves.

关 键 词：泌阳凹陷 北坡 油气 富集规律 二次勘探 

分 类 号：P618.13[天文地球—矿床学]