Deghosting of over/under towed-streamer seismic data with wavefield extrapolation

Xizhu Guan; Li-Yun Fu; Wei Wei

doi:10.1071/ASEG2015ab262

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa Deghosting of over/under towed-streamer seismic data with wavefield extrapolation
Authors Xizhu Guan^a, Li-Yun Fu^b and Wei Wei^c
View Affiliations Hide Affiliations

^a Institute of Geology and Geophysics, Chinese Academy of Sciences, 19 Beitucheng Xi Rd 100029, Beijing, , China, E-mail [email protected] ^b Institute of Geology and Geophysics, Chinese Academy of Sciences, 19 Beitucheng Xi Rd 100029, Beijing, , China, E-mail [email protected] ^c Institute of Geology and Geophysics, Chinese Academy of Sciences, 19 Beitucheng Xi Rd 100029, Beijing, , China, E-mail [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2015ab262
- Published online: 01 Dec 2015

Abstract

In marine seismic acquisition, ghost effect due to the strong reflection of the sea surface causes serious notch trap in the spectrum. Ghost effect can be reduced by over/under towed streamer acquisition. Howerver, most of deghosting technology for over/under streamer acquisition is based on seismic kinematics method, which cannot effectively solve the ghost wave interference and brings incomplete ghost suppression and distortion of the effective signal. In this paper, we propose a new deghosting method for over/under streamer acquisiton based on analytical fk-domain seismic wavefield extrapolation characterized by high computing efficiency. Cases studies of synthetic and real seismic datasets demonstrate that our seismic wavefield extrapolation based on Fourier transform ensures the consistency of the seismic amplitude and phase of over/under streamer seismic data and significantly eliminates the amplitude and phase error of far offset especially for the long streamer condition, which helps to decouple the real wave and the ghost wave and fill notch effect in the spectrum.

Article metrics loading...

/content/journals/10.1071/ASEG2015ab262

2015-12-01

2026-01-21

From This Site

/content/journals/10.1071/ASEG2015ab262

dcterms_title,dcterms_subject,pub_keyword

-contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution

10

5

Full text loading...

References

Amundsen, L., 1993, Wavenumber-based filtering ofmarine point-source data: Geophysics, 58, 1335 - 1348.
Ferber R G. The Concept of Triple Over/Under Streamer Data Acquisition and Processing[C]//70th EAGE Conference & Exhibition. 2008.
Haggerty P E. Methodand apparatus for caceling : U.S. patent 2,757,356[P]. 1956-7-31.
Hill D, Combee C, Bacon J. Over/under acquisition and data processing: the next quantum leap in seismic technology?[J]. First Break, 2006, 24(6).
Moldoveanu N, Combee L, Egan M, et al. Over/under towed-streamer acquisition: A method to extend seismic bandwidth to both higher and lower frequencies[J]. The Leading Edge, 2007, 26(1): 41-58.
Ozdemir A K, Caprioli P, Ozbek A, et al. Optimized deghosting of over/under towed-streamer data in the presence of noise[J]. The Leading Edge, 2008, 27(2): 190-199.
Posthumus B J. Deghosting using a twin streamer configuration[J]. Geophysical Prospecting, 1993, 41(3): 267286.
Sonnenland L E, Berg B, Haugan A, et al. 2D deghosting using vertical receiver array.(Expanded Abstract)[C]//56th SEG Meeting, Houston, Texas. 1986: 516-519.
Wire W O, America S, Network V, et al. Imaging beneath basalt using an over-under towed-streamer configuration[J]. 2006.

/content/journals/10.1071/ASEG2015ab262

Article Type: Research Article

Keyword(s): deghosting; frequency wavenumber domain; nder towed-streamer; seismic wavefield extraploation

Most Cited This Month Most Cited RSS feed

- Inversion of data from electrical imaging surveys in water-covered areas
  
  Authors M. H. Loke and J. W. Lane
- Inversion of Magnetic Data from Remanent and Induced Sources
  
  Authors Robert G. Elllis, Barrry de Wet and Ian N. Macleod
- A comparison of smooth and blocky inversion methods in 2-D electrical imaging surveys
  
  Authors M. H. Loke, Ian Acworth and Torleif Dahlin
- Designing matched bandpass and azimuthal filters for the separation of potential-field anomalies by source region and source type
  
  Authors Jeffrey D. Phillips
- Bad Colour Maps Hide Big Features and Create False Anomalies
  
  Authors Peter Kovesi
- Practical 3D EM inversion – the P223F software suite
  
  Authors Art Raiche, Fred Sugeng and Glenn Wilson
- Estimating Noise Levels in AEM Data
  
  Authors Andy Green and Richard Lane
- Target delineation using Full Tensor Gravity Gradiometry data
  
  Authors Colm A. Murphy and James Brewster
- Transdimensional Monte Carlo Inversion of AEM Data
  
  Authors Ross C Brodie and Malcolm Sambridge
- The geotech VTEM time domain helicopter em system
  
  Authors Ken Witherly, Richard Irvine and Edward Morrison
More Less

oa Deghosting of over/under towed-streamer seismic data with wavefield extrapolation

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed