天然气地球科学 ›› 2006, Vol. 17 ›› Issue (2): 272–275.doi: 10.11764/j.issn.1672-1926.2006.02.272

• 天然气地球物理勘探 • 上一篇    下一篇

转换波三维初至静校正方法在SLG气区的应用

王宇超1,2,牛滨华1, 张年春2,3,马龙2,3,王建华2   

  1.  (1.中国地质大学(北京),北京 100083; 2.中国石油勘探开发研究院西北分院,甘肃  兰州 730020;3.成都理工大学,四川 成都 610059)
  • 收稿日期:2005-12-26 修回日期:2006-02-19 出版日期:2006-04-20 发布日期:2006-04-20
  • 通讯作者: 王宇超wangyc8@petrochina.com .cn. E-mail:wangyc8@petrochina.com .cn.
  • 作者简介:王宇超(1965-),男,陕西乾县人,高级工程师,在读博士,从事地震资料处理处理工作.

THE APPLICATION OF 3D CONVERTED WAVE FIRSTBREAK REFRACTION STATIC  IN THE SLG AREA

WANG Yu-chao 1,2,NIU Bin-hua 1, ZHANG Nian -chun 2,3, MA long 2,3,WANG Jian-hua 2   

  1. (1.China University of Geosciences, Beijing 100083, China; 2.Research Institute  of Petroleum Exploration & Development-Northwest(NWGI), PetroChina, Lanzhou 7 30020, China; 3 Chengdu University of Technology, Chengdu 610059, China)
  • Received:2005-12-26 Revised:2006-02-19 Online:2006-04-20 Published:2006-04-20

摘要:

由于转换横波的传播速度比纵波低,且其传播不受孔隙流体的影响,故其在近地表的结构和纵波亦不同,因此在转换波地震资料处理过程中,转换横波的静校正问题比纵波更为突出。利用纵波初至和转换横波初至联合来建立近地表模型、最终求取转换横波的静校正量的方法,并在SLG气区实际应用,取得了良好的效果,认为可在生产实际中推广。

关键词: 转换波, 初至静校正, 近地表模型

Abstract:

Due to converted shear wave have lower velocity than P wave and the fluid in the  medium have no action to converted shear wave. The near surface model for conve rted shear wave is different from that for P wave. The static of converted shear  wave become more important and serious than P wave in converted shear wave seis mic data processing. In this article,first,use firstbreak time of P wave to ob tain the near surface model;second,pick the firstbreak time difference between  P wave and converted shear wave by cross correlation;then,calculate the stati c of converted shear wave.We use the real 3D converted wave seismic data in the  SLG area. As it shows in this paper, the problem of converted shear wave stati c is solved perfectly.We suggest that this method may be widely used in convert ed shear wave seismic data processing.

Key words: Converted wave, Firstbreak refraction static, Near surface model.

中图分类号: 

  • TE132.1+4

 [1 ] 牛滨华,孙春岩.半空间介质与地震波传播[M].北京:石油工业出版社 ,2002.
[2]  刘全新,李道善.关于山地静校正和偏移基准面的一些认识 [J ].天然气地球科学, 2003,14(1):57-59.
 [3 ]  詹正彬,姚姚.多分量地震和横波勘探[M].北京:地质出版社,1993.
 [4 ]  张树林,夏斌,何家雄.海上多波多分量地震采集技术的应用——以莺歌海盆地为例  [J ].天然气地球科学,2005,16(1):103-107.
[5]  CARY P W, EATON D W S.A simple method for resolving large converted-wave (P-SV)statics[J].Geophysics, 1993,58(3):429-433.
[6]  唐建侯,张金山.消除P-SV波大静校正量的方法[J].石油地 球物理勘探,1994,29(5):650-653.
[7]  李彦鹏,谷跃民.利用上行透射转换波计算横波静校正量 [C ]//国际地球物理会议论文集,CPS/SEG,2004:114-116.

[1] 张军舵,杨午阳,王艳香,赵万金,王宇超. 转换波地震资料处理方法研究与应用[J]. 天然气地球科学, 2011, 22(6): 1116-1122.
[2] 郭晓龙;欧阳永林;耿晶;许晶;. 鄂尔多斯盆地苏里格气田地震转换波解释[J]. 天然气地球科学, 2005, 16(5): 650-653.
[3] 张树林; . 地震勘探新领域——转换波勘探技术[J]. 天然气地球科学, 1993, 4(1): 31-39.
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