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基于正交匹配追踪的深度波数谱分解及其在含油气储层预测中的应用

唐甜 巴素玉 时瑞坤 王楠 田媛 顾汉明

唐甜, 巴素玉, 时瑞坤, 王楠, 田媛, 顾汉明. 基于正交匹配追踪的深度波数谱分解及其在含油气储层预测中的应用[J]. 地质科技通报, 2024, 43(1): 360-370. doi: 10.19509/j.cnki.dzkq.tb20220237
引用本文: 唐甜, 巴素玉, 时瑞坤, 王楠, 田媛, 顾汉明. 基于正交匹配追踪的深度波数谱分解及其在含油气储层预测中的应用[J]. 地质科技通报, 2024, 43(1): 360-370. doi: 10.19509/j.cnki.dzkq.tb20220237
TANG Tian, BA Suyu, SHI Ruikun, WANG Nan, TIAN Yuan, GU Hanming. Depth wavenumber spectral decomposition based on orthogonal matching pursuit and its application in hydrocarbon reservoir prediction[J]. Bulletin of Geological Science and Technology, 2024, 43(1): 360-370. doi: 10.19509/j.cnki.dzkq.tb20220237
Citation: TANG Tian, BA Suyu, SHI Ruikun, WANG Nan, TIAN Yuan, GU Hanming. Depth wavenumber spectral decomposition based on orthogonal matching pursuit and its application in hydrocarbon reservoir prediction[J]. Bulletin of Geological Science and Technology, 2024, 43(1): 360-370. doi: 10.19509/j.cnki.dzkq.tb20220237

基于正交匹配追踪的深度波数谱分解及其在含油气储层预测中的应用

doi: 10.19509/j.cnki.dzkq.tb20220237
基金项目: 

胜利油田分公司基础前瞻课题"深度偏移资料时深双域地震属性特征研究" YJQ2103

中国石化课题"砂砾岩体沉积模式与圈闭描述技术推广应用" P21091

详细信息
    作者简介:

    唐甜, E-mail: t553471525@126.com

    通讯作者:

    顾汉明, E-mail: hmgu@cug.edu.cn

  • 中图分类号: P631.4;P618.13

Depth wavenumber spectral decomposition based on orthogonal matching pursuit and its application in hydrocarbon reservoir prediction

More Information
  • 摘要:

    常规时间域地震属性分析是利用由叠前深度偏移数据转换至时间域的数据,这种转换将造成有效高频信息的损失,为了充分利用深度域资料成像精度高的优势,有必要开展深度域资料属性分析工作。由于深度域波数与频率和波速有关,如何获得高分辨率深度波数谱是深度域地震属性分析的关键。采用基于稀疏反演的谱分解方法,通过建立深度域过完备子波库,利用正交匹配追踪算法提高深度波数谱计算分辨率,通过理论模型的深度波数谱属性计算,并与时频谱属性进行对比,分析含油气储层的深度波数谱变化特征,通过实际资料的深度波数谱属性分析应用,验证利用深度波数谱进行含油气性预测的实用性。结果表明,基于正交匹配追踪算法的深度波数谱分解方法具有较高分辨率,可作为深度域含油气储层预测的高精度手段之一。实际数据应用表明,深度波数谱含油气储层下方出现低波数伴影现象,可作为深度域指示油气储层存在的标志,基于正交匹配追踪的深度波数谱分解方法可有效识别低波数伴影异常,对深度域地震资料进行含油气储层预测。

     

  • 图 1  楔状体模型

    Figure 1.  Wedge model

    图 2  楔状体等频剖面

    Figure 2.  Common frequency profiles of the wedge model

    图 3  楔状体等波数剖面

    Figure 3.  Common wavenumber profiles of the wedge model

    图 4  含油气储层复杂模型

    Figure 4.  Complex model with hydrocarbon-bearing reservoir

    图 5  模型单道记录谱分解结果

    Figure 5.  Spectral decompositionresults of a single trace of the model

    图 6  含油气储层模型的等频剖面

    Figure 6.  Common frequency profiles of the model with hydrocarbon-bearing reservoirs

    图 7  含油气储层模型的等波数剖面

    Figure 7.  Common wavenumber profiles of the model with hydrocarbon-bearing reservoirs

    图 8  实际过57井深度(a)和时间(b)剖面

    Figure 8.  Seismic profile across Well 57 in the depth domain (a) and time domain (b)

    图 9  时间域与深度域过57井记录谱分解结果

    Figure 9.  Spectral decomposition of seismic traces across Well 57 in the time domain and depth domain

    图 10  时间域实际资料等频剖面

    Figure 10.  Common frequency profiles of field data in the time domain

    图 11  深度域实际资料等波数剖面

    Figure 11.  Common wavenumber profiles of field data in the depth domain

    图 12  时间域实际资料等频切片

    Figure 12.  Common frequency sections of field data in the time domain

    图 13  深度域实际资料等波数切片

    Figure 13.  Common wavenumber sections of field data in the depth domain

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出版历程
  • 收稿日期:  2022-05-25
  • 录用日期:  2022-07-06
  • 修回日期:  2022-07-05

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