石油与天然气地质 ›› 2009, Vol. 30 ›› Issue (6): 779-785.doi: 10.11743/ogg20090617

• 方法技术 • 上一篇    下一篇

地震频谱成像的地质含义及在沉积特征研究中的应用

张雷1, 卢双舫1, 张学娟1, 杨志如2, 何欣1   

  1. 1. 大庆石油学院, 黑龙江, 大庆, 163318;
    2. 中国石油天然气股份有限公司, 东方地球物理公司, 河北, 涿州, 072751
  • 收稿日期:2009-10-30 出版日期:2009-12-25 发布日期:2012-01-16
  • 基金项目:

    教育部新世纪优秀人才支持计划(NCET-04-0345)

Geologic implications of seismic spectrum imaging and its application to researches on sedimentary features

Zhang Lei1, Lu Shuangfang1, Zhang Xuejuan1, Yang Zhiru2, He Xin1   

  1. 1. Daqing Petroleum Institute, Daqing, Heilongjiang 163318, China;
    2. BGP, PetroChina Company Limited, Zhuozhou, Hebei 072751, China
  • Received:2009-10-30 Online:2009-12-25 Published:2012-01-16

PDF (PC)

766

被引次数

10

摘要：

在总结地震频谱成像几方面地质含义的基础上,通过井资料、砂岩预测厚度及地震属性等资料,验证了松辽盆地北部朝阳沟油田朝86井区振幅调谐体分频切片所能反映出的地质信息:该区扶余Ⅰ油层东西两侧具有不同的沉积特点。东部单期河道发育厚度大,但期次少,砂岩总厚度小,沉积物来自东北方向;西侧河道发育厚度薄,期次多,砂岩总厚度较大,沉积物来自西南方向。利用分频切片不但可以较准确地识别河道砂体展布形态、反映砂岩厚度分布特征,同时还可反映出研究区沉积物源、薄储层纵向变化及平面分布规律等沉积特征。

关键词: 频谱成像, 分频切片, 河道, 储层预测, 朝阳沟油田, 松辽盆地北部

Abstract:

The accurate understanding and rational application of the geologic implications of seismic spectrum imaging are helpful to precise description of reservoir distribution patterns and sedimentary features.On the basis of summarizing geological implications of seismic spectrum imaging,we validated the geological imformation reflected by the frequency division slice of amplitude tuning cube of the Chao-86 wellblock in the Chaoyanggou oilfield with well data,estimated thickness of sandstone and seismic attributes.The Fu-I oil layer in the study area has different sedimentary features in the east and west sides.In the east side,although the single channel sandbody is thick,the total thickness of sandstones is small due to the small number of superimposed channel sands.The sediments are sourced from the provenance in the northeast.In contrast,in the west side,although the single channel sandbody is thin,the total thickness of sandstones is relatively large,thanks to the large number of superimposed channel sands.The sediments came from the provenance in the southwest.Frequency division slices not only can accurately reflect the areal distribution and vertical thickness of the channel sandbodies,but also can indicate the provenance,vertical variation and areal distribution of thin reservoirs.

Key words: spectrum imaging, frequency division slice, reservoir prediction, channel, Chaoyaogou oilfield, North Songliao Basin

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