岩性油气藏 ›› 2015, Vol. 27 ›› Issue (3): 103–107.doi: 10.3969/j.issn.1673-8926.2015.03.016

• 技术方法 • 上一篇    下一篇

约束稀疏脉冲反演在杜坡油田核三段中的应用

张 义,尹艳树   

  1. 长江大学 地球科学学院,武汉 430100
  • 出版日期:2015-05-26 发布日期:2015-05-26
  • 第一作者:张义( 1990- ),男,长江大学在读硕士研究生,研究方向为精细油藏描述。 地址:( 430100 )湖北省武汉市蔡甸区大学路长江大学地球科学学院。 E-mail : 1551269385@qq.com
  • 基金资助:

    国家重大科技专项“精细油藏描述技术及剩余油赋存方式研究”(编号: 2011ZX05011-001 )资助

Application of constrained sparse spike inversion in the third member of Hetaoyuan Formation in Dupo Oilfield

ZHANG Yi,YIN Yanshu   

  1.  College of Geosciences , Yangtze University , Wuhan 430100 , China
  • Online:2015-05-26 Published:2015-05-26

摘要:

杜坡油田储层受构造和河道砂体的双重控制,断裂极为发育,储层横向变化快,阻碍了油田后期的开发生产。 为了更加清楚地认识储层平面展布特征,亟需通过地震反演技术来刻画储层砂体的发育和分布情况。通过分析研究区地质、地震及测井等资料,对核三段Ⅱ—Ⅵ油组进行储层预测。 根据约束稀疏脉冲反演的基本原理,首先对数据进行可行性分析;其次进行井震联合标定、子波提取;然后利用解释的层位、断层构建框架模型;最后在低频模型基础上通过设置重要的反演参数完成约束稀疏脉冲反演研究。利用反演成果分析了杜坡油田核三段砂体的发育和分布情况,这在一定程度上刻画了储层的展布特征,为杜坡油田下一步开发调整提供了参考依据。

关键词: 约束稀疏脉冲反演, 子波提取, 低频模型, 核三段, 储层预测, 杜坡油田

Abstract:

 The reservoir in Dupo Oilfield is controlled by structure and channel sand body, and has fast lateral variation and well developed fracture, which restricts the development of oilfield in the late production. In order to make clear the reservoir distribution characteristics, we need to depict the development and distribution of sand body through seismic inversion technique. Based on the geologic, seismic and logging data, this paper carried out reservoir prediction of ⅡⅥ oil groups of the third member of Hetaoyuan Formation. According to the basic principle of constrained sparse spike inversion, carried out feasibility analysis, well-to-seismic calibration and wavelet extraction, formed frame model by using interpreted formation and fault, then established low frequency model, and finally completed the study on constrained sparse spike inversion by setting important parameters. Through analyzing inversion results, the development and distribution of sand body of the third member of Hetaoyuan Formation in Dupo Oilfield are clear, which depicts the distribution characteristics of reservoir to a certain extent and provides a reference for the next development and adjustment of Dupo Oilfield.

Key words: constrained sparse spike inversion, wavelet extraction, low frequency model, the third member of Hetaoyuan Formation, reservioir prediction, Dupo Oilfield, Dupo Oilfield

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