新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (1): 44-46.

• 油气勘探 • 上一篇    下一篇

复杂断裂区深层地震资料成象技术--以大港油田千米桥地区为例

张建伟1, 程庆2, 强芳青2, 岳伏生2   

  1. 1.成都理工大学,四川成都610059;
    2.中国石油石油勘探开发科学研究院西北分院,甘肃兰州730020
  • 收稿日期:2003-03-25 出版日期:2004-02-01 发布日期:2020-08-06
  • 作者简介:张建伟(1963-), 男,山西长子人,高级工程师,在读博士研究生,石油物探。联系电话:093- 1-8686062,8686069

Seismic Data Imaging Technique in Deep Complex F aulting Area --An example of Qianmiqiao area in Dagang oilfield

ZHANG Jian-wei1, CHENG Qing2, QIANG Fang-qing2, YUE Fu-sheng2   

  1. 1. Chengdu University of Technology, Chengdu, Sichuan 610059, China;
    2. Northwest Sub-Institute, Research Institute of Petroleum Exploration and Development, PetroChina, Lanzhou, Gansu 730020, China
  • Received:2003-03-25 Online:2004-02-01 Published:2020-08-06

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摘要： 通过对以大港油田为代表的东部深层地震资料进行深入的分析,提出了解决此类问题所采用的关键技术:叠前深度偏移与模型法提高信噪比处理,即在叠前深度偏移的深度域CRP道集共反射点成象道集)上,利用模型的处理技术模型法去噪、模型法静校正),实现CRP道集无时差叠加。这项技术是把模型约束思想和地震解释思想紧密结合起来采用处理解释-体化的工作方法，使深层地震资料能够较好地成象,取得了较好的解释结果。

关键词: 深度, 叠前偏移, 模型, 信噪比, 静校正, 信息处理, 地质解释

Abstract: A key technique is put forward by analy zing the seismic data from deep strata of Dagang oilfield in East China. The technique is tocombine the prestack depth migration with model processing for improv ing the signal-to-noise ratio, namely in common reflection point (CRP)trace gather of prestack depth migration, realizing its zero time-shift stacking,by application of the model-based noise attenuation and model-based static correction methods. This tight combination bet ween the model constraint and the seismic interpretation can have the seismic datafrom deep strata better imagined, thus obtaining good results for geologic interpretation.

Key words: depth, pre-stack migration, model, signal-to- noise ratio, static correction, seismic data processing, geologic interpretation

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