新疆石油地质

新疆石油地质 ›› 2006, Vol. 27 ›› Issue (5): 562-563.

• 油气勘探 • 上一篇    下一篇

三维地震资料二次处理技术——以克拉玛依油田四2区为例

李家宁, 胡学雷, 宋玉梅, 李路   

  1. 中国石油新疆油田分公司采油一厂, 新疆克拉玛依 834000
  • 收稿日期:2006-02-06 修回日期:2006-03-24 出版日期:2006-10-01 发布日期:2020-10-20
  • 作者简介:李家宁(1969-), 男, 新疆克拉玛依人, 工程师, 油气田开发, (Tel) 0990-6841162.

Re-Processing of 3D Seismic Data—An example of District NO.4-(2) in Karamay oilfield

LI Jia-ning, HU Xue-lei, SONG Yu-mei, LI Lu   

  1. No.1 Production Plant, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2006-02-06 Revised:2006-03-24 Online:2006-10-01 Published:2020-10-20

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摘要： 克拉玛依油田四2区大部分三维地震资料品质较差,浅、中、深层资料信噪比极低,面波、脉冲等干扰严重,在记录上几乎看不到有效反射信息,猝发脉冲噪声现象严重,三维地震资料束线多、变观现象严重。另外,地震资料多次波不发育,给处理带来了较大困难。采用FOCUS及GRISYS两套地震资料处理系统,进行叠前去噪、DMO叠加去噪、叠前F-X域预滤波、反褶积试验、三维RNA技术提高剖面信噪比以及PR分裂一步法偏移等处理方法,取得了很好的效果。

关键词: 三维地震, 资料处理, F-X域预滤波, 反褶积, PR分裂一步法

Abstract: The 3D seismic data from District No.4-(2) in Karamay oilfield is mostly characterized by such poor quality as extremely low signal/noise ratio, serious surface wave and pulse interference, few effective reflection information, distinct pulse noise and undeveloped round trip echo in shallow, middle and deep strata, etc. All these bring great difficulties for the data processing. This paper adopts FOCUS and GRISYS for seismic data processing to prestack noise removal, DMO stack noise removal, prestack F-X field pre-filtering, deconvolution test, 3D RNA for improving signal/noise ratio and PR one-step migration technique, etc., and very good results have been gained.

Key words: 3D, data processing, F-X field pre-filtering, deconvolution, PR one-step technique

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