收稿日期: 2009-12-29
修回日期: 2010-03-30
网络出版日期: 2010-04-10
基金资助
中国石油重大科技专项“柴达木盆地油气勘探开发关键技术”项目(编号:07-01Z-01-01)资助.
Technology of Static Correction for Multi-information Constrained Tomographic Inversion and Its Application
Received date: 2009-12-29
Revised date: 2010-03-30
Online published: 2010-04-10
王孝, 贺振华, 王述江, 冯会元, 王西林 . 多信息约束层析反演静校正技术及其应用[J]. 天然气地球科学, 2010 , 21(2) : 316 -320 . DOI: 10.11764/j.issn.1672-1926.2010.02.316
In the area near surface with swift change of velocity structure, static correction is significant for seismic exploration. A single method is hard to make a right static correction in the three-dimensional seismic integration. So, based on nonlinear tomographic inversion, phase belt plot of velocity model in plane section, and short refraction and minilog data as initial model, we can make the tomographic inversion improve the vertical inversion precision and spacial reasonability. For the high frequency static correction values that has imaging advantage, we piece together, then use function interpolation at boundary. Thus, the imaging advantage of different methods in a 3D block can be used. The 3D static correction technology has been used in some complex areas, and the good results has been gotten.
Key words: Velocity structure; Static correction; Phase belt; Constraint function.
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