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潜水波层析成像速度建模技术在鄂尔多斯黄土塬区的应用研究

李立胜 王兆旗 丁梁波 徐志诚 叶月明 陈见伟

李立胜, 王兆旗, 丁梁波, 徐志诚, 叶月明, 陈见伟. 潜水波层析成像速度建模技术在鄂尔多斯黄土塬区的应用研究[J]. CT理论与应用研究, 2021, 30(4): 417-424. doi: 10.15953/j.1004-4140.2021.30.04.02
引用本文: 李立胜, 王兆旗, 丁梁波, 徐志诚, 叶月明, 陈见伟. 潜水波层析成像速度建模技术在鄂尔多斯黄土塬区的应用研究[J]. CT理论与应用研究, 2021, 30(4): 417-424. doi: 10.15953/j.1004-4140.2021.30.04.02
LI Lisheng, WANG Zhaoqi, DING Liangbo, XU Zhicheng, YE Yueming, CHEN Jianwei. Diving Wave Tomography and Reflection Tomography for PSDM Velocity Model Building of Complex Depth Imaging in Loess Tableland Area of Western Edge of Ordos Basin[J]. CT Theory and Applications, 2021, 30(4): 417-424. doi: 10.15953/j.1004-4140.2021.30.04.02
Citation: LI Lisheng, WANG Zhaoqi, DING Liangbo, XU Zhicheng, YE Yueming, CHEN Jianwei. Diving Wave Tomography and Reflection Tomography for PSDM Velocity Model Building of Complex Depth Imaging in Loess Tableland Area of Western Edge of Ordos Basin[J]. CT Theory and Applications, 2021, 30(4): 417-424. doi: 10.15953/j.1004-4140.2021.30.04.02

潜水波层析成像速度建模技术在鄂尔多斯黄土塬区的应用研究

doi: 10.15953/j.1004-4140.2021.30.04.02
基金项目: 

国家自然科学基金(面向海洋深水资料的全波场最小二乘偏移方法研究(41874164))。

详细信息
    作者简介:

    李立胜,西南石油学院勘察应用地球物理专业学士学位,中国石油杭州地质研究院高级工程师,主要从事地震资料处理工作,E-mail:lils_hz@petrochina.com.cn;王兆旗*,男,中国石油杭州地质研究院高级工程师,主要从事地震资料处理及方法研究,E-mail:wangzq_hz@petrochina.com.cn。

  • 中图分类号: P315;P631

Diving Wave Tomography and Reflection Tomography for PSDM Velocity Model Building of Complex Depth Imaging in Loess Tableland Area of Western Edge of Ordos Basin

  • 摘要: 针对鄂尔多斯盆地西缘黄土塬区复杂地表和复杂地下构造导致难以准确成像问题,采用浅层潜水波层析反演(DWT)速度建模技术,同时辅以中深层反射波层析成像技术,形成一套实用叠前深度偏移速度建模方法。首先生成一个基于钻井和解释信息的起始近地表速度,其次利用潜水波层析反演建立初始近地表模型,将其与常规处理获得的中深层速度模型进行匹配拼接,建立起初始的起伏地表全速度模型,然后在此基础上利用基于反射波的网格层析进行中深层速度建模,经过多轮次迭代,最终获得可靠的高精度速度模型。鄂尔多斯盆地西缘MJT工区地震资料的成像处理验证了这一套速度建模技术的有效性,地下构造成像更合理也更精确。

     

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出版历程
  • 收稿日期:  2020-12-15
  • 网络出版日期:  2021-09-24

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