南阳凹陷缓坡弯折带样式及其油气勘探意义  

The Pattern of Gentle Slope-Break Zone in Nanyang Depression and Its Significance in Petroleum Exploration

作　　者：蔡佳[1,2] 罗家群[3] 姜华[1,2] 赵忠新[4] 陈少平 

机构地区：[1]中国地质大学(武汉)资源学院,湖北省武汉市430074 [2]中国地质大学(武汉)构造与油气资源教育部重点实验室,湖北省武汉市430074 [3]中国石化河南油田分公司勘探开发研究院,河南省南阳市473132 [4]中国石油冀东油田分公司,河北省唐山市063004 [5]中海石油研究中心,北京100027

出　　处：《中国石油勘探》2008年第5期26-30,共5页China Petroleum Exploration

基　　金：2007年国家自然基金项目(40702023);中国地质大学(武汉)构造与油气资源教育部重点实验室基金资助

摘　　要：准确识别弯折带,是建立陆相断陷盆地低位体系域分布模式、层序构成样式和层序发育边界的关键因素,也是隐蔽岩性圈闭和隐蔽油气藏准确预测的基石。通过对南阳凹陷的研究表明,凹陷北部缓坡的弯折带是由南部控凹正断层在非平面上滑动造成。在建立弯折带层序地层格架的基础上,总结南阳凹陷缓坡弯折带的特征及其控制因素。将弯折带理论与南阳凹陷的勘探实践相结合,建立其有利储集体分布的预测模型,对指导下一步的油气勘探有着及其重要的意义。To recognize the break zone exactly is critical to establish the distribution model, the sequence constitution pattern, and the sequence development boundary of lower system tracts in terrestrial rift basins. It is also the basis for the exact prediction of subtle lithologic traps and subtle oil and gas reservoirs. It is indicated by the research on Nanyang Depression that the break zone on the northern slope is developed as a result of the slip of normal faults of the southern depression on the negative plane. On the basis of the sequence stratigraphic framework of the break zone, the characteristics of the gentle slope-break zone of the depression and its controlling factors are summed up. Combining the theory of break zones and the exploration practice in Nanyang Depression, the model predicting favorable reservoir bodies distribution is built, which is of great significance to the oil and gas exploration henceforth.

关 键 词：南阳凹陷 弯折带 层序地层格架 油气勘探 

分 类 号：TE111[石油与天然气工程—油气勘探]