新疆石油地质

新疆石油地质 ›› 2006, Vol. 27 ›› Issue (3): 359-360.

• 应用技术 • 上一篇    下一篇

伪方位角校正技术在三维资料处理中的应用

杜增利1,2, 施泽进1, 江文波2, 赵飞2   

  1. 1.成都理工大学, 成都 610059;
    2.中国石油 塔里木油田分公司, 新疆 库尔勒 841000
  • 收稿日期:2006-01-23 出版日期:2006-06-01 发布日期:2020-10-19
  • 作者简介:杜增利(1969-), 男, 河北保定人, 工程师, 矿产普查与勘探,(Tel) 13980976225(M)(E-mail) duzl0896@126.com.

Application of Pseudo-Azimuth Correction to 3D Seismic Data Processing

DU Zeng-li1,2, SHI Ze-jin1, JIANG Wen-bo2, ZHAO Fei2   

  1. 1. Chengdu University of Technology, Chengdu, Sichuan 610059, China;
    2. Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China
  • Received:2006-01-23 Online:2006-06-01 Published:2020-10-19

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摘要： F-K滤波是压制线性噪声最常用、有效的一种方法,但在三维资料处理过程中,由于偏移距分布的不均匀,致使线性噪声在共炮点道集上表现为非线性,这就使F-K滤波技术不能很好地压制线性噪声。在南喀1井区资料处理中,采用伪方位角校正及F-K滤波技术压制线性噪声,提高了资料的信噪比,结合其他处理措施,成果资料品质得到改善。应用该成果重新解释成图,落实了南喀1号构造。

关键词: F-K 滤波, 线性噪声, 伪方位角校正, 信噪比

Abstract: F-K filtering is the most effective method of linear noise suppression. The linear noise in shot gather appears to be non-linear because of the non-uniformity of offsets between traces in 3D seismic data processing. So using the F-K method can not eliminate the linear noise efficiently. The seismic data processing of Wellblock Nanka-1 is made, by application of pseudo-azimuth correction, the signal to noise ratio is increased. The quality of seismic data is then improved, combined with other processing measures. Finally, Nanka-1 structure is recognized by elaborate interpretation and plotting of the seismic data.

Key words: F-K filtering, linear noise, pseudo-azimuth correction, signal to noise ratio

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