江家店地区沙三段高分辨率层序地层研究
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摘要
以钻／测井、高分辨率三维地震资料为基础,以多级次基准面旋回为参照面的高分辨率层序地层理论为指导,对惠民凹陷沙三段不同级别的基准面旋回层序进行分析,从中识别出4个中期旋回,从上至下命名为C1, C2,C3和C4旋回,由此建立了惠民凹陷沙三段的层序地层对比格架。在区域层序地层格架的基础上,根据岩性和电性资料,对研究区沙三段开展了高频层序划分与对比,共识别出9个短期基准面旋回。以短期旋回为基本的时间地层单元,在连井剖面的层序地层对比基础上,建立了江家店地区高分辨率层序地层对比格架。在高频层序内研究了沉积微相的构成与演化特征以及储层分布规律。最后在高精度层序划分与对比、层序的沉积微相构成分析、砂体分布规律研究基础上,对有利的岩性圈闭勘探目标区作出了预测。
Based on comprehensive study of seismic data, well logging and drilling data, different base levels of cycles in Sha-3 member are analyzed, with 4 mid term cycles named C1, C2, C3, and C4 cycle, recognized according to the theory of high resolution sequence stratigraphy for dividing multiple grade base level cycles. On the basis of this, the sequence stratigraphic framework of Sha-3 member in the depression is built. Then the high-frequency sequence of Sha-3 member is divided and contrasted, with 9 short-term base level cycles being recognized according to the lithologic and electric data. By regarding the short-term cycle as the basic time stratigraphic unit, the sequence strata on linked-well section are contrasted and the high-resolution sequence stratigraphic framework in Jiangjiadian area established. The constitution and e-volution features of sedimentary facies and reservoir distribution rules are studied within the high frequency sequence. At last, favorable exploration target area is predicted based on high frequency sequence division and comparison, constitution analysis of sequence sedimentary microfacies, and sand body distribution.
Based on comprehensive study of seismic data, well logging and drilling data, different base levels of cycles in Sha-3 member are analyzed, with 4 mid term cycles named C1, C2, C3, and C4 cycle, recognized according to the theory of high resolution sequence stratigraphy for dividing multiple grade base level cycles. On the basis of this, the sequence stratigraphic framework of Sha-3 member in the depression is built. Then the high-frequency sequence of Sha-3 member is divided and contrasted, with 9 short-term base level cycles being recognized according to the lithologic and electric data. By regarding the short-term cycle as the basic time stratigraphic unit, the sequence strata on linked-well section are contrasted and the high-resolution sequence stratigraphic framework in Jiangjiadian area established. The constitution and e-volution features of sedimentary facies and reservoir distribution rules are studied within the high frequency sequence. At last, favorable exploration target area is predicted based on high frequency sequence division and comparison, constitution analysis of sequence sedimentary microfacies, and sand body distribution.
引文
1宋维琪,仝兆岐．惠民凹陷江家店地区隐蔽油藏储集层预测[J]．石油勘探与开发,2000,27(6):6-7
2崔世凌,韩宏伟,魏瑞香等,临南洼陷砂岩岩性油气藏描述方法及效果分析[J]．石油物探,2002,41(2): 186-190
3崔世凌,秦爽,杨泽蓉等,惠民凹陷复杂断块精细描述技术及应用[J]．石油物探,2002,41(3):347-353
4王秉海,钱凯主编．胜利油区地质研究与勘探实践[M]．山东东营:石油大学出版社,1992．50-75
5邓宏文．美国层序地层研究中的新学派——高分辨率层序地层学[J]．石油与天然气地质,1995,16(2):89- 97
6邓宏文．沉积物体积分配原理——高分辨率层序地层学的理论基础[J]．地学前缘,2000,7(4):305-313
7邓宏文,王红亮,祝永军等．高分辨率层序地层学-原理及应用[M]．北京:地质出版社,2002．1-253
8徐刚,刘传虎．埕岛东坡陆相箕状断陷缓坡带层序地层学研究[J]．勘探地球物理进展,2004,27(6):422-427
9李忠,雷雪,晏礼．川东石炭系黄龙组层序地层划分及储层特征分析[J]．石油物探,2005,44(1):39-43
10潘元林,宗国洪,郭玉新等．济阳断陷湖盆层序地层学及砂砾岩油气藏群[J]．石油学报,2003,24(3):17-19
2崔世凌,韩宏伟,魏瑞香等,临南洼陷砂岩岩性油气藏描述方法及效果分析[J]．石油物探,2002,41(2): 186-190
3崔世凌,秦爽,杨泽蓉等,惠民凹陷复杂断块精细描述技术及应用[J]．石油物探,2002,41(3):347-353
4王秉海,钱凯主编．胜利油区地质研究与勘探实践[M]．山东东营:石油大学出版社,1992．50-75
5邓宏文．美国层序地层研究中的新学派——高分辨率层序地层学[J]．石油与天然气地质,1995,16(2):89- 97
6邓宏文．沉积物体积分配原理——高分辨率层序地层学的理论基础[J]．地学前缘,2000,7(4):305-313
7邓宏文,王红亮,祝永军等．高分辨率层序地层学-原理及应用[M]．北京:地质出版社,2002．1-253
8徐刚,刘传虎．埕岛东坡陆相箕状断陷缓坡带层序地层学研究[J]．勘探地球物理进展,2004,27(6):422-427
9李忠,雷雪,晏礼．川东石炭系黄龙组层序地层划分及储层特征分析[J]．石油物探,2005,44(1):39-43
10潘元林,宗国洪,郭玉新等．济阳断陷湖盆层序地层学及砂砾岩油气藏群[J]．石油学报,2003,24(3):17-19
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