分频带预测反褶积方法研究
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摘要
随着油气勘探难度不断增大,地震勘探开发工作不断深入,地震资料分辨率直接制约着油藏描述的精度。文中针对地震资料不同频带之间信噪比不同的特点,提出了基于经验模态分解的分频带预测反褶积方法。首先采用经验模态分解方法,将地震资料分解成一系列不同频率范围的分频带数据,然后,根据分频带数据的信噪比高低,分别进行不同预测步长的反褶积处理。分频带预测反褶积方法能够较好地兼顾分辨率与信噪比的关系,实现地震资料分辨率的有效提高,为储层精细描述提供高分辨率的地震资料,在地震资料试处理中取得了较好的效果。
The difficulty of exploration is increasing continuously with the deepening of seismic exploration. The accuracy of reservoir characterization is restricted by seismic resolution. The method of separate frequency predictive deconvolution based on empirical mode decomposition, which compromises the seismic resolution and signal to noise ratio, is proposed aimed at the different signal to noise ratio of different separate frequency. The separate frequency seismic data are decomposed with empirical mode decomposition, and it is processed by predictive deconvolution with different deconvolution operator. The separate frequency predictive deconvolution method can effectively give consideration to the relationship between seismic resolution and signal to noise ratio and improve the seismic resolution, which provides high resolution seismic data for reservoir description. A good effect has been gotten in the trial process of seismic data.
引文
[1]刘立彬,新民,韩站一.高分辨率处理技术在车排子地区的应用[J].断块油气田,2010,17(2):185-187.
    [2]刁瑞,尚新民,芮拥军,等.时频域谱模拟反褶积方法研究[J].岩性油气藏,2013,25(1):116-121.
    [3]李敏杰.数据规则化技术在三维地震老资料叠前偏移中的应用[J].断块油气田,2012,19(4):430-433.
    [4]尚新民,刁瑞,冯玉苹,等.谱模拟方法在高分辨率地震资料处理中的应用[J].物探与化探,2014,38(1):75-80.
    [5]王小祥.反褶积在大庆外围中浅层气井试井解释中的应用[J].断块油气田,2012,19(5):670-673.
    [6]范小冬,曾灏,刘益强.地震资料时空变谱白化处理[J].石油地球物理勘探,1995,30(4):550-555.
    [7]曹务祥.利用小波包算法提高地震资料分辨率[J].石油地球物理勘探,1996,31(5):704-711.
    [8]章珂,李衍达,刘贵忠,等.多分辨率地震信号反褶积[J].地球物理学报,1999,42(4):529-535.
    [9]陈传仁,周熙襄.小波谱白化方法提高地震资料的分辨率[J].石油地球物理勘探,2000,35(6):703-709.
    [10]王季.基于Hilbert谱白化的高分辨率地震资料处理[J].煤炭学报,2012,37(1):50-54.
    [11]张军华,周振晓,钟磊,等.地震资料信噪比定量计算及比较[J].油气地球物理,2008,6(4):9-14.
    [12]闫安菊,蔡涵鹏.改进的各向异性扩散滤波方法压制地震数据噪声[J].断块油气田,2012,19(5):592-595.
    [13]高喜龙.埕岛油田东斜坡地震资料特殊处理及储层预测[J].断块油气田,2012,19(1):88-91.
    [14]周喆,桂志先,王宁.基于小波变换提取吸收系数方法及应用[J].断块油气田,2013,20(3):289-292.
    [15]陈伟,王尚旭,啜晓宇.基于经验模态分解的属性优化方法[J].石油地球物理勘探,2013,48(1):121-127.
    [16]徐敏,刘克难,梅莉.三维地震勘探技术在多组系发杂构造区的应用[J].断块油气田,2011,18(4):453-456.

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