叠前弹性参数反演在黄珏油田的应用
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
为了预测苏北盆地高邮凹陷黄珏油田岩性油气藏Ed24有利砂体发育区,提出了利用叠前弹性参数反演预测砂体的思路。通过研究区地层弹性参数对砂岩的敏感性分析试验,筛选出2个对砂岩反应较敏感的弹性参数(弹性波阻抗和体积模量)。在精细地震AVO处理的基础上进行AVO属性反演,然后将常规波阻抗反演算法应用于AVO属性数据,最终得到纵波速度、30°弹性波阻抗和体积模量3个弹性参数。针对黄珏油田Ed24地层特征,利用30°弹性波阻抗、体积模量和弹性波阻抗的反射率预测有利砂体发育区。Ed24砂体在平面上整体呈扇形展布,主要可分为2个大的朵叶体,其中位于H83井—H32井西侧的②号砂体发育区最为有利,是下一步岩性油气藏勘探的有利目标。图6参14
The prediction of lithology using elastic parameters is presented for the exploration of lithologic oil reservoirs in the Huangjue area.Two elastic parameters (bulk modulus(K) and EI(30)) are more sensitive to sandstone and claystone based on the sensitivity analysis of eight elastic parameters.Three elastic parameters(P wave velocity,bulk modulus(K) and EI(30)) were inverted using pre-stack time migration CRP gather data and well log data through pre-stack elastic parameter inversion.It is obvious that bulk modulus(K) and EI(30) are better than P-wave velocity for sand discrimination.Two fans (Ed24) develop in the study area,one is located at the west of Wells H83 and H32,N-S trending;the other is located at the area between Well H83 and Well H11,N-E trending.Number 2 sandbody of the six sandbodies is the most favorable exploration target in the area.
引文
[1]吴向阳,李宝刚.高邮凹陷油气运移特征研究[J].中国石油大学学报(自然科学版),2006,30(1):22-25.
    [2]贾承造,赵文智,邹才能,等.岩性地层油气藏勘探研究的两项核心技术[J].石油勘探与开发,2004,31(3):3-9.
    [3]Patrick A Connolly.P-wave elastic impedance[J].The LeadingEdge,1999,18(4):438-552.
    [4]Whitcombe.Elastic impedance normalization[J].Geophysics,2002,67(1):63-67.
    [5]倪逸.弹性波阻抗计算的一种新方法[J].石油地球物理勘探,2003,38(2):147-155.
    [6]马劲风.地震勘探中广义弹性阻抗的正反演[J].地球物理学报,2003,46(1):118-124.
    [7]甘利灯,赵邦六,杜文辉,等.弹性阻抗在岩性和流体预测中的潜力分析[J].石油物探,2005,44(5):504-508.
    [8]Robert W Hanna.Virgil Kauffman award for Patrick a connolly[J].The Leading Edge,2001,20(11):1296-1301.
    [9]王晓平,陈波,孙维昭,等.用保真保幅处理三维地震资料解释YW3井区东河砂岩尖灭线[J].石油勘探与开发,2005,32(1):63-66.
    [10]钟思瑛,邵先杰,廖光明,等.苏北盆地3种退积型三角洲沉积体系及砂体储集性能对比[J].石油勘探与开发,2005,32(2):26-30.
    [11]宋岩,赵孟军,柳少波,等.中国3类前陆盆地油气成藏特征[J].石油勘探与开发,2005,32(3):1-6.
    [12]隋淑玲.井间地震资料的属性分析及应用[J].石油勘探与开发,2005,32(3):76-77.
    [13]汲生珍,刘震.波阻抗反演技术在层序地层与沉积分析中的应用[J].石油勘探与开发,2005,32(6):66-68.
    [14]徐正顺,王渝明,庞彦明,等.大庆徐深气田火山岩气藏储集层识别与评价[J].石油勘探与开发,2006,33(5):521-531.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心