An adaptive over/under data combination method

Abstract
References
Similar articles

Download: PDF (1145 KB) HTML ( KB) Export: BibTeX | EndNote (RIS) Supporting Info

Abstract The traditional “dephase and sum” algorithms for over/under data combination estimate the ghost operator by assuming a calm sea surface. However, the real sea surface is typically rough, which invalidates the calm sea surface assumption. Hence, the traditional “dephase and sum” algorithms might produce poor-quality results in rough sea conditions. We propose an adaptive over/under data combination method, which adaptively estimates the amplitude spectrum of the ghost operator from the over/under data, and then over/under data combinations are implemented using the estimated ghost operators. A synthetic single shot gather is used to verify the performance of the proposed method in rough sea surface conditions and a real triple over/under dataset demonstrates the method performance.

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	HE Jian-Wei
	LU Wen-Kai
	LI Zhong-Xiao

Key words： Over/under data combination dephase and sum deghost amplitude spectrum

Received: 2013-05-31;

Cite this article:

HE Jian-Wei,LU Wen-Kai,LI Zhong-Xiao. An adaptive over/under data combination method[J]. APPLIED GEOPHYSICS, 2013, 10(4): 469-476.

[1]	Amundsen, L., 1993, Wavenumber-based filtering of marine point-source data: Geophysics, 58, 1335 - 1348.
[2]	Bunting, T., Lim, B. J., Lim, C. H., Kragh, E., Cao, R., Yang, S. K., Zhang, Z. B., Xie, Y. H., and Li, L., 2011, Marine broadband case study offshore China: First Break, 29, 67 - 74.
[3]	Ferber, R. G., 2008, The concept of triple over/under streamer data acquisition and processing: 70th EAGE Conference & Exhibition, Rome, Extended Abstract B030.
[4]	Hill, D., Combee, L., and Bacon, J., 2006, Over/under acquisition and data processing: the next quantum leap in seismic technology? First Break, 24, 81 - 96.
[5]	Kragh, E., Muyzert, E., Cyrtis, T., Svendsen, M., and Kapadia, D., 2010, Efficient broadband marine acquisition and processing for improved resolution and deep imaging: The Leading Edge, 29, 464 - 469.
[6]	Jovanovich, B. D., Summer, R. D., and Akins-Easterlin, S. L., 1983, Ghosting and marine signature deconvolution A prerequisite for detailed seismic interpretation: Geophysics, 48, 1468 - 1485.
[7]	Lu, W. K., He, J. W., Shi, H. S., Li, Z. X., Zhang, X. T., and Wu, Y. L., 2012, An adaptive Over/Under data combination method, 74th EAGE Conference & Exhibition, Copenhagen, Extended Abstract P043.
[8]	Ozdemir, A. K., Caprioli, P., Ozbek, A., Kragh, E., and Robertsson, J. O. A., 2008, Optimized deghosting of over/under towed-streamer data in the presence of noise: The Leading Edge, 27, 190 - 199.
[9]	Posthumus, B. J., 1993, Deghosting using a twin streamer configuration: Geophysical Prospecting, 41, 267 - 286.

[1]	Zhang Xing-Yan, Pan Dong-Ming, Shi Wen-Ying, Fang Zhong-Yu, Dan Zhi-Wei, Zhang Li-Xia. *Deghosting towed streamer data in τ/p* domain based on rough sea surface reflectivity**[J]. APPLIED GEOPHYSICS, 2015, 12(4): 573-584.
[2]	Sui Jing-Kun, Zhang Xiao-Dong, Li Yan-Dong. A seismic coherency method using spectral amplitudes[J]. APPLIED GEOPHYSICS, 2015, 12(3): 353-361.
[3]	ZHOU Huai-Lai, WANG Jun, WANG Ming-Chun, SHEN Ming-Cheng, ZHANG Xin-Kun, LIANG Ping. Amplitude spectrum compensation and phase spectrum correction of seismic data based on the generalized S transform[J]. APPLIED GEOPHYSICS, 2014, 11(4): 468-478.