收稿日期: 2008-12-12
修回日期: 2009-03-01
网络出版日期: 2009-04-10
Application of Tomographic Inversion Static Correction in Complex Areas of Western China
Received date: 2008-12-12
Revised date: 2009-03-01
Online published: 2009-04-10
王红旗 曲寿利 宁俊瑞 张建伟 徐蔚亚 王永胜 姜大建 . 层析反演静校正方法在西部复杂地区的应用[J]. 天然气地球科学, 2009 , 20(2) : 258 -262 . DOI: 10.11764/j.issn.1672-1926.2009.02.258
Static correction technique plays a key role in seismic data processing, especially in complicated surface. Static correction problem is serious in areas of western China with acute topographic undulation and sharp lateral variations of LVZ velocity. In complex near surface conditions, accurate near surface velocity models and static correction quantities cannot be acquired with conventional methods of field static correction and break first refraction static correction. Tomographic inversion static correction can obtain accurate near surface velocity models by tomographic inversion with nonlinear arithmetic, and figure out accurate static correction quantities. This paper introduces the basic theory and main steps of tomographic inversion static correction, including ray tracing and Simultaneous Iterative Reconstruction Technique inversion. Application result in the Bachu area of Tarim Basin shows that tomographic inversion static correction can clearly improve the effect of seismic stack imaging.
[1] 熊翥.中国西部地区物探工作思考[J].石油地球物理勘探,2000,35(2):255 -270.
[2] 王翠华.折射静校应用研究[J]. 石油物探,2000,39(4):107 -113.
[3] 宁俊瑞,王顺国,樊佳芳,等.基于对比折射法的三维静校正技术及其应用[J].石油物探,2006,45(3):277 -284.
[4] 陈启元,王彦春,段云卿,等.复杂山区的静校正方法探讨[J].石油物探,2001,40(1):73 -81.
[5] 朱卫红,郑伟建,金晓雷,等.折射静校正在三维地震资料处理中的应用[J].石油物探,1999,38(3):39 -44.
[6] 李福中,邢国栋,白旭明,等.初至波层析反演静校正方法研究[J].石油地球物理勘探,2000,35(6):710 -718.
[7] Zhang J,Toksoz M N.Nonlinear refraction travel time tomography[J].Geophysics,63(5):1726 -1737.
[8] Zhu X,Sixta D P,Angstman B G.Tomostatic:Turning ray tomography static corrections[J].The Leading Edge,1992,11(12):15 -23.
[9] Moser T J. Shortest path calculation of seismic rays[J].Geophysics,1991,56(1): 59 -67.
[10] Fischer R,Lees J M.Shortest path ray tracing with sparse graphs[J].Geophysics,1993,58(7):987 -996.
[11] Gallo G,Pallottino S.Shortest path methods:A unifying approach[J].Mathematical Programming Study,1987,26:38 -64.
[12] 谭开俊,牟中海,吕锡敏,等.塔里木盆地西南地区石炭系油气勘探潜力[J].天然气地球科学,2004,15(6):610 -613.
[13] 周新源,王清华,杨文静,等.塔里木盆地天然气资源及勘探方向[J].天然气地球科学,2005,16(1):7 -11.
[14] 肖香娇,唐明龙.塔里木盆地将成为中国陆上最大的产气区[J].天然气地球科学,2003,14(1):35 -38.
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