Water Bottom Multiple Elimination and Data Quality Enhancement Using Parabolic Radon Transform: A Case Study of 3D Seismic Data from Offshore Niger Delta

D.O. Ogagarue^1, and J.O. Ebeniro²

¹Department of Earth Sciences, Federal University of Petroleum Resources, Effurun, Nigeria

²Department of Physics, University of Port Harcourt, Nigeria

Cite this paper

D.O. Ogagarue and J.O. Ebeniro. Water Bottom Multiple Elimination and Data Quality Enhancement Using Parabolic Radon Transform: A Case Study of 3D Seismic Data from Offshore Niger Delta. Journal of Geosciences and Geomatics. 2014; 2(4):172-177. doi: 10.12691/JGG-2-4-5

Abstract

The aim of seismic data processing is to obtain accurate image of the subsurface which can be interpreted in terms of subsurface structures favourable to hydrocarbon accumulation. Multiples destructively interfere with primary reflections and their removal from reflection seismograms has been a longstanding problem to seismic processing geophysicists. If not eliminated, their presence could make seismic data interpretation difficult and lead to erroneous results. In this study, an attempt was successfully made to eliminate water bottom multiples by application of a specially derived parabolic radon filter on a 3D streamer seismic dataset acquired from offshore Niger Delta with the objective of improving the quality of the seismic data. Comparison of CMP gathers before and after application of the radon filter shows significant improvement in data quality which, if stacked, would create a volume more representative of the subsurface structures.

Keywords

seismic data processing, water bottom multiples, Radon filter, data quality, Niger Delta

Copyright

This work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

References

[1]	Stewart, P.G., Jones, I.F. and Hardy, P.B., 2007, Solutions for deep water imaging, SPG GeoHorizons, P8-22.
[2]	Hugonnet, P., Boellet, J.L., Herrmann, P. and Navion, S., 2010, 3D pedictive decon for wide azimuth gathers, 72nd EAGE Conference & Exhibition.
[3]	Backus, M., 1959, Water reverberations, their nature and elimination, Geophysics, Vol. 24, p. 233-261.
[4]	Das, M., 2006, Multiple attenuation case study, 6th SPG conference, Kolkata.
[5]	Robinson, E.A. and Treitel, S., 1980, A review of Geophysical signal analysis, New Jersey, Prentice-Hall, p. 466.
[6]	Yilmaz, O., 1987, Seismic data processing, Soc. Expl. Geophys.
[7]	Cao, Z.N., Bancroft, J.C., Brown, R.J. and Xaio, C.M., 2003, Radon transform and multiple attenuation, CREWES Research Report, Vol. 15.
[8]	Radon, J., 1917, Uber die Bestimmung von Funktionen durch hre Integralwerte langs gewisser Mannigfaltigkeiten, Berichte Sashsische Akadamie der Wissenschaffen, Leipez, Math-Phys. K1., 69, 262-267.
[9]	Deans, S.R., 1983, The Radon transform and some of its application: John Wiley and Sons Inc.
[10]	Durrani, T.S. and Bisset, D., 1984, The Radon transform and its properties, Geophysics, Vol. 49, 1180-1187.
[11]	Singh, S.S., Shankar, U. and Sain, K., 2008, Multiple suppression and data quality enhancement using radon transform: A case study, 7th ICE on Petroleum Geophysics, Hyderabad.
[12]	Kumar, L., Mohan, R., Sastry, M.H. and Sinha, D.P., 2008, Effectiveness of Radon filter in multiple attenuation, An analysis on real and synthetic data, 7th ICE on Petroleum Geophysics, Hyderabad.
[13]	Trad, D., Ulrych, T.J. and Sacchi, M.D., 2002, Accurate interpolation with high - resolution time-variant radon transforms, Geophysics, 67, 64-656.
[14]	Kelamis, P.G., Chiburis, E.F. and Shahryar, S., 1990, Radon multiple elimination, a practical methodology for land data, 60th Ann. Internat. Mtg, SEG.
[15]	Thorson, R.J. and Claerbout, J.F., 1985, Velocity-stack and slant-stack stochastic inversion, Geophysics, Vol. 50, p. 2727-2741.
[16]	Foster, D.J. and Mosher, CC., 1992, Suppresion of multiple reflections using radon transform, Geophysics, 57, 386-389.
[17]	Hampson, D., 1986, Inverse velocity stacking for multiple elimination, Journal of canadian Soc. Expl. Geophys., 22, 1, 44-55.
[18]	Oppert, S.K. and Brown, R.J., 2002, The Foster-Mosher hyperbolic Radon summation curve and the shifted-hyperbola formulation, CREWES Research Report, Vol. 14.
[19]	Sacchi, M.D., 1999, Fast high resolution parabolic Radon transform, SEG Expanded Abstracts, Vol. II, p. 1477-1480.
[20]	West, B.Ver., 2002, Suppressing peg-leg multiples with parabolic demultiple, EAGE 64th Conference and Exhibition, Italy.
[21]	Kole, J., Madan, R., Chatterjee, D. and Viswanathan, S.,2012, Suppression of multiples by high resolution parabolic Radon transform using bulk shift in complex area, 9th Biennial Intern, Conf. and Exposition on Petroleum Geophysics, Hyderabad.