A fracture enhancement method based on the histogram equalization of eigenstructure-based coherence
Dou Xi-Ying1, Han Li-Guo1, Wang En-Li2, Dong Xue-Hua2, Yang Qing2, and Yan Gao-Han2
1. College of Geo-Exploration of Science and Technology, Jilin University, Changchun 130026, China.
2. Research Institute Petroleum Exploration & Development-Northwest (NWGI), Lanzhou 730020, China.
Abstract Eigenstructure-based coherence attributes are efficient and mature techniques for large-scale fracture detection. However, in horizontally bedded and continuous strata, buried fractures in high grayscale value zones are difficult to detect. Furthermore, middle- and small-scale fractures in fractured zones where migration image energies are usually not concentrated perfectly are also hard to detect because of the fuzzy, clouded shadows owing to low grayscale values. A new fracture enhancement method combined with histogram equalization is proposed to solve these problems. With this method, the contrast between discontinuities and background in coherence images is increased, linear structures are highlighted by stepwise adjustment of the threshold of the coherence image, and fractures are detected at different scales. Application of the method shows that it can also improve fracture cognition and accuracy.
This research is sponsored by the National Science & Technology Major Special Project (Grant No. 2011ZX05025-001-04).
Cite this article:
DOU Xi-Ying,HAN Li-Guo,WANG 恩Li et al. A fracture enhancement method based on the histogram equalization of eigenstructure-based coherence[J]. APPLIED GEOPHYSICS, 2014, 11(2): 179-185.
[1]
Acharya, T., and Ray, A. K., Image Processing: Principles and Applications: Wiley-Interscience, 2005.
[2]
Bahorich, M., and Farmer, S. L., 1995, 3-D seismic discontinuity for faults and stratigraphic features: The coherence cube: The Leading Edge, 14, 1053 - 1058.
[3]
Caselles, V., Lisani, J. L., Morel, J. M., and Sapiro, G., 1999, Shape preserving local histogram modification: IEEE Transactions on Image Processing, 8(2), 220 - 230.
[4]
Chopra, S., and Marfurt, K. J., 2007, Seismic Attributes for Fault/Fracture Characterization, SEG Technical Program Expanded Abstracts 2007, 1520 - 1524.
[5]
Chorpa, S., and Marfurt, K. J., 2007, Seismic attributes for prospect identification and reservoir characterization: Society of Exploration Geophysiscists, Tulsa, OK.
[6]
Chopra, S., and Marfurt, K. J., 2010, Integration of coherence and volumetric curvature images: The Leading Eage, 29, 1092-1107.
[7]
Cohen, I., and Coifman, R., 2002, Local discontinuity measures for 3D seismic data, Geophysics, 67(6), 1933 - 1945.
[8]
Gersztenkorn, A., and Marfurt, K. J., 1999, Eigenstructure based coherence computations as an aid to 3-D structural and stratigraphic mapping: Geophysics, 64, 1468 - 1479.
[9]
Gonzalez, R. C., and Woods, R. E., 2007, Digital Image Processing (Third Edition): Pearson Prentice Hall, New York.
[10]
Khellaf, A., Beghdadi, A., and Dupoiset, H., 1991, Entropic contrast enhancement: IEEE Transactions on Medical Imaging, 10(4), 589 - 592.
[11]
Kim, Y. L., 1997, Contrast enhancement using brightness preserving bihistogram equalization: IEEE Transactions on Consumer Electronics, 43(1), 1 - 8.
[12]
Marfurt, K.J., Kirlin, R. L., Farmer, S. H., and Bahorich, M. S., 1998, 3D seismic attributes using a running window semblance-based algorithm: Geophysics, 63(4), 1150 - 1165.
[13]
Marfurt, K. -J., Sudhaker, V., Gersztenkorn, A., Crawford, K. D., and Nissen, S. E., 1999, Coherency calculations in the presence of structural dip: Geophysics, 64(1), 104 - 111.
[14]
Sheet, D., Garud, H., Suyeer, A., et al., 2010, Brightness preserving dynamic fuzzy histogram equalization: IEEE Transactions Consumer Electronics, 56(4) , 2475 - 2480.
[15]
Wang, C., and Ye, Z., Brightness preserving histogram equalization with maximum entropy: A variational perspective: IEEE Transactions Consumer Electronics, 2005, 51(4), 1326 - 1334.
[16]
Wang, X. K., Gao, J. H., Chen, W. C., and Song, Y. Z., 2012, An efficient implementation of eigenstructure-based coherence algorithm using recursion strategies and the power method, Journal of Applied Geophysics, 82, 11 - 18.
[17]
Wu, C. M., 2013, Studies on Mathematical Model of Histogram Equalization: Acta Electronic Sinica, 41(3), 599 - 602.
[18]
Yang, P. J., Mu, X., and Zhang, J. T., 2010, Orientational edge-preserving fault enhancement: Chinese J. Geophys. (in Chinese), 53(12), 2992 - 2997.
[19]
Zhang, E. H., Wang W., Gao J. H., et al. 2010, Nonlinear anisotropic diffusion filtering for 3D seismic noise removal and structure enhancement: Progress in Geophys. (in Chinese), 25(3), 866 - 870.
[20]
Zeng, F. S., Wang, X. C., and Chen, T. J., 2013, Joint technique of spectral decomposition and C3 coherence to detect fine faults of coal bed: Progress in Geophys. (in Chinese), 28(1), 462 - 467.
[21]
Zhang, J. H., Wang Y. Y., Zhao Y., and Huang G. P., 2004, Detection of coherent data volume by wavelet multi resolution and application, Oil Geophysical Prospecting, 39(1), 33 - 38.
2014, Vol. 11 
