埕岛油田东斜坡地震资料特殊处理及储层预测
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摘要
针对埕岛油田东斜坡地区东营组目的层段砂岩储层较薄,砂、泥速度差异较小,三维地震资料品质较差,储层描述难度大等问题,从小波分频处理基本原理出发,阐述了小波分频处理技术对提高地震资料分辨率的可行性,探索应用了该技术提高地震资料分辨率、以测井资料为约束地震反演储层描述新技术,对东斜坡东营组储层分布空间和展布规律进行了反演、预测和描述。应用结果表明:通过对三维地震资料的小波分频特殊处理,地震资料主频有所提高,频带得到了进一步拓宽,资料品质得到明显改善,识别薄储层能力得到加强;在此基础上,通过测井约束反演,充分发挥了井、震各自优势,精细刻画了储层的展布特征,落实了储量规模,有效解决了储层预测的困难,为下步勘探开发部署提供了可靠的依据。
The target sandstone layers of Dongying Formation in eastern slope area of Chengdao Oilfield can not be distinguished because the thickness of sandstone reservoir is thin,the velocity difference between sands and mudstone is small,the quality of seismic data is poor and the difficulty of reservoir description is great.From the basic principle of wavelet frequency division processing,the feasibility of technique for improving the resolution of seismic data is elaborated.The reservoir distribution space and law of Dongying Formation in eastern slope area are inverted,described and predicted by the wavelet frequency division processing and logging constrained inversion.The application results show that the main frequency is increased,the band of frequency is further widened,the quality of seismic data is obviously improved and the identification of thin layer is strengthened by the wavelet frequency division processing.On this basis,the features of reservoir distribution and reserves scale are delineated with logging constrained inversion technique.Furthermore,the difficulties of reservoir prediction are effectively solved,which can provide a reliable basis for further exploration and development of Dongying Formation in eastern slope area.
引文
[1]黄悍东,张如伟,郭迎春.地震信号的小波分频处理[J].石油天然气学报,2008,30(3):87-91.Huang Handong,Zhang Ruwei,Guo Yingchun.Wavelet frequency-division process for seismic signals[J].Journal of Oil and GasTechnology,2008,30(3):87-91.
    [2]管振清,郭树祥,单联瑜.利用低频信息改善地震成像质量[J].断块油气田,2009,16(1):39-41.Guan Zhenqing,Guo Shuxiang,Shan Lianyu.Using low-frequencyinformation to improve quality of seismic imaging[J].Fault-Block Oil&Gas Field,2009,16(1):39-41.
    [3]罗玲.DZ地区高精度地震资料处理技术与效果分析[J].石油地质与工程,2010,24(1):43-45.Luo Ling.DZ regional high-precision seismic data processingtechnology and effect analysis[J].Petroleum Geology and Engineering,2010,24(1):43-45.
    [4]王华桥,邹伟,罗群.纯东地区目的层反射资料小波分频处理与解释[J].勘探地球物理进展,2006,29(4):287-289.Wang Huaqiao,Zou Wei,Luo Qun.Frequency-division data processingand interpretation for target of Sha 4 in Chundong Region[J].Progress in Exploration Geophysics,2006,29(4):287-289.
    [5]高喜龙,孙希瑞,李顺玲,等.测井约束反演在埕岛油田储层预测中的应用[J].石油地球物理勘探,2001,36(3):334-338.Gao Xilong,Sun Xirui,Li Shunling,et al.Application of logging-restrained inversion in reservoir prediction of Chengdao Oilfield[J].Oil Geophysical Prospecting,2001,36(3):334-338.
    [6]肖阳,朱敏,朱文奎,等.测井约束反演技术在油藏描述中的应用[J].石油地球物理勘探,2001,3(5):633-639.Xiao Yang,Zhu Min,Zhu Wenkui,et al.Application of logging-constrained in version in reservoir description[J].Oil GeophysicalProspecting,2001,3(5):633-639.
    [7]杜锦霞,黄哲.测井约束反演及在JD地区的应用[J].断块油气田,2009,16(5):126-128.Du Jinxia1,Huang Zhe.Well logging constrained inversion and itsapplication in JD Region[J].Fault-Block Oil&Gas Field,2009,16(5):126-128.
    [8]陈新军,汪立君,季东明.利用地震反演技术预测东濮凹陷文243井区储层[J].天然气地球科学,2003,14(5):422-424.Chen Xinjun,Wang Lijun,Ji Dongming.Using seismic severse sechniquePredict Reservoir in Wen 243 Hole Area,Dongpu Sag[J].Natural GasGeoscience,2003,14(5):422-424.

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