Thin Coal Bed Resolution by Using Seismic Spectral Blueing and Colored Inversion

YANG Rui-zhao, ZHAO Zheng-guang, MA Yan-long, HUO Chao, LI Yang

doi:10.11764/j.issn.1672-1926.2013.01.156

Natural Gas Geoscience >

2013 , Vol. 24 >Issue 1: 156 - 161

DOI: https://doi.org/10.11764/j.issn.1672-1926.2013.01.156

Thin Coal Bed Resolution by Using Seismic Spectral Blueing and Colored Inversion

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School of Geoscience and Surveying Engineering,C hina University of Mining and Technology, Beijing 100083, China

Received date: 2012-06-07

Revised date: 2012-07-09

Online published: 2013-02-10

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Abstract

It has proved that the model simulated by seismic inversion in practice is often too much model-dependent and sometimes go beyond the seismic band limit as well as be erroneous for using inaccurate estimated wavelet.Seismic spectral blueing and colored inversion can effectively whiten the seismic wavelet to enhance seismic resolution and ensure that the blued seismic data show the true reflectivity of the subsurface without going beyond the seismic band limit.In this paper,we design the optimal workflow of seismic spectral blueing and colored inversion and use it to the 3D seismic data acquired for coalbed methane exploration.The results show that application of spectral blueing and colored inversion improves the seismic resolution of thin coal beds.Simultaneously,the colored inversion acoustic impedance is applied to aid at the interpretation of thin coal beds,which removes the erroneous interpretation occurred during previous interpretation using merely the original seismic data. 

Key words： Spectral bluing; Colored inversion; Relative acoustic impedance; Thin bed; Operator

Cite this article

YANG Rui-zhao, ZHAO Zheng-guang, MA Yan-long, HUO Chao, LI Yang . Thin Coal Bed Resolution by Using Seismic Spectral Blueing and Colored Inversion[J]. Natural Gas Geoscience, 2013 , 24(1) : 156 -161 . DOI: 10.11764/j.issn.1672-1926.2013.01.156

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