泌阳凹陷有利油气区带预测
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摘要
运用高精度层序地层学的理论,系统地划分和对比泌阳凹陷上白垩统至古近系不同级别的层序地层单元,建立了凹陷内各级层序地层单元的对比框架,指出凹陷北部斜坡带为高位进积三角洲复杂断块群油气藏,北部斜坡枢纽带内带为低位扇断层—岩性油气藏、深凹区湖扩展期和高位期为滑塌浊积体及湖底扇透镜体圈闭,南部陡坡带为岩性油气藏发育区。以此为指导,针对凹陷北部斜坡、深凹区、南部陡坡等3个构造带发育不同类型圈闭的特点,开展了圈闭的地震识别和预测技术研究,发现了一批复杂油气藏,钻探后取得了较好的效果。
High-precision sequence stratigraphy was applied to divide and correlate the different sequence stratigraphical units from the Upper Cretaceous to plaeogene in the Biyang depression,and a sequence stratigraphic framework which can correlate the different sequence stratigraphical units was set up to point out that the ramp region of the north-depression is an oil and gas reservoir featured by altitude progradational delta and complex fault blocks,the inner belt of the north slope hinge zone is a low order fault-lithologic oil and gas reservoir,the development stages and high order terms of the deep depressed area is a fluxoturbidite and sublacustrine fan lens trap,and the south actic region is a lithologic hydrocarbon reservoir development area. Guided by this and combined with the feature that the three structural belts have different traps,this paper studied on the seismic identification and the prediction techniques of complex trap,and found many complex traps. Obvious results have been achieved in the exploration drilling.
High-precision sequence stratigraphy was applied to divide and correlate the different sequence stratigraphical units from the Upper Cretaceous to plaeogene in the Biyang depression,and a sequence stratigraphic framework which can correlate the different sequence stratigraphical units was set up to point out that the ramp region of the north-depression is an oil and gas reservoir featured by altitude progradational delta and complex fault blocks,the inner belt of the north slope hinge zone is a low order fault-lithologic oil and gas reservoir,the development stages and high order terms of the deep depressed area is a fluxoturbidite and sublacustrine fan lens trap,and the south actic region is a lithologic hydrocarbon reservoir development area. Guided by this and combined with the feature that the three structural belts have different traps,this paper studied on the seismic identification and the prediction techniques of complex trap,and found many complex traps. Obvious results have been achieved in the exploration drilling.
引文
[1]邱荣华.泌阳凹陷成烃成藏基础理论研究[R].南阳:中国石化河南油田分公司,2003.
[2]李思田.陆相盆地高精度层序地层学[M].北京:地质出版社,2003.
[3]胡受权,陈萍,闫福旺,等.泌阳断陷湖盆陡坡带陆相层序油气藏成藏类型及分布规律探讨[J].河南石油,2001,15(2):27-32.
[4]林畅松,张燕梅,刘景彦,等.高精度层序地层学和储层预测[J].地学前缘,2000,7(3):33-38.
[5]李思田.沉积盆地的动力学分析[J].地学前缘,1995,2(3):1-8.
[6]贾振远,蔡忠贤.成岩地层学与层序地层学[J].地球科学,1997,22(5):538-543.
[7]陈开远,孙爱霞.成油体系中的层序地层学[J].石油与天然气地质,1998,19(3):221-226.
[8]邱荣华.泌阳富油凹陷北部斜坡带浅层复杂断块群油气勘探[J].石油与天然气地质,2006,27(6):813-819.
[9]孙耀华,张永华,罗涛.泌阳凹陷隐蔽油气藏勘探技术实践探索[J].江汉石油学院学报,2003,25(3):43-44.
[2]李思田.陆相盆地高精度层序地层学[M].北京:地质出版社,2003.
[3]胡受权,陈萍,闫福旺,等.泌阳断陷湖盆陡坡带陆相层序油气藏成藏类型及分布规律探讨[J].河南石油,2001,15(2):27-32.
[4]林畅松,张燕梅,刘景彦,等.高精度层序地层学和储层预测[J].地学前缘,2000,7(3):33-38.
[5]李思田.沉积盆地的动力学分析[J].地学前缘,1995,2(3):1-8.
[6]贾振远,蔡忠贤.成岩地层学与层序地层学[J].地球科学,1997,22(5):538-543.
[7]陈开远,孙爱霞.成油体系中的层序地层学[J].石油与天然气地质,1998,19(3):221-226.
[8]邱荣华.泌阳富油凹陷北部斜坡带浅层复杂断块群油气勘探[J].石油与天然气地质,2006,27(6):813-819.
[9]孙耀华,张永华,罗涛.泌阳凹陷隐蔽油气藏勘探技术实践探索[J].江汉石油学院学报,2003,25(3):43-44.
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