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Volume 59, Issue 3
  • E-ISSN: 1365-2478

Abstract

ABSTRACT

We present the results of a seismic interferometry experiment in a shallow cased borehole. The experiment is an initial study for subsequent borehole seismic surveys in an instrumented well site, where we plan to test other surface/borehole seismic techniques. The purpose of this application is to improve the knowledge of the reflectivity sequence and to verify the potential of the seismic interferometry approach to retrieve high‐frequency signals in the single well geometry, overcoming the loss and attenuation effects introduced by the overburden. We used a walkaway vertical seismic profile (VSP) geometry with a seismic vibrator to generate polarized vertical and horizontal components along a surface seismic line and an array of 3C geophones cemented outside the casing. The recorded traces are processed to obtain virtual sources in the borehole and to simulate single‐well gathers with a variable source‐receiver offset in the vertical array. We compare the results obtained by processing the field data with synthetic signals calculated by numerical simulation and analyse the signal bandwidth and amplitude versus offset to evaluate near‐field effects in the virtual signals. The application provides direct and reflected signals with improved bandwidth after vibrator signal deconvolution. Clear reflections are detected in the virtual seismic sections in agreement with the geology and other surface and borehole seismic data recorded with conventional seismic exploration techniques.

© 2010 European Association of Geoscientists & Engineers
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2010-12-10
2024-04-25

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References

  1. BaetenG.J.M. and ZiolkowskiA.M.1990. The Vibroseis Source . Elsevier.
    [Google Scholar]
  2. BakulinA. and CalvertR.2004. Virtual source: New method for imaging and 4D below complex overburden. 74th SEG meeting, Denver , Colorado , USA , Expanded Abstracts, 2477–2480.
  3. BakulinA., MateevaA., CalvertR., JorgensenP. and LopezJ.2007. Virtual shear source makes shear waves with air guns. Geophysics72(2), A7–A11.
    [Google Scholar]
  4. BrittleK.F., LinesL.R. and DeyA.K.2001. Vibroseis deconvolution: A comparison of cross‐correlation and frequency domain sweep deconvolution. Geophysical Prospecting49, 675–686.
    [Google Scholar]
  5. CalvertR.W.2004. Seismic imaging a subsurface formation. US Patent 6,747,915.
  6. ChabotL., HenleyD.C., BrownR.J. and BancroftJ.C.2001. Single‐well imaging using the full waveform of an acoustic sonic. 71st SEG meeting, San Antonia , Texas , USA , Expanded Abstracts, 420–423.
  7. ClaerboutJ.F.1968. Synthesis of a layered medium from its acoustic transmission response. Geophysics33, 264–269.
    [Google Scholar]
  8. GaiserJ.E., VasconcelosI. and RamkhelawanR.2009. Elastic‐wavefield interferometry – Pseudo‐source VSPs from 3D P‐wave vibrator data. 71st EAGE meeting, Amsterdam , the Netherlands , Expanded Abstracts.
  9. HaldorsenJ.B.U. and BorlandW.2008. Use of seismic vibrators for vertical seismic profiling: Considerations for the choice of sweep. EAGE Vibroseis Workshop, Prague , Czech Republic , October 2008, E04.
  10. HaldorsenJ.B.U., MillerD.E. and WalshJ.J.1994. Multichannel Wiener deconvolution of vertical seismic profiles. Geophysics59, 1500–1511.
    [Google Scholar]
  11. HallidayD., CurtisA. and KraghE.2008. Seismic surface waves in a suburban environment – Active and passive interferometric methods. The Leading Edge27, 210–218.
    [Google Scholar]
  12. HornbyB.E.1989. Imaging of near‐borehole structure using full‐waveform sonic data. Geophysics54, 747–757.
    [Google Scholar]
  13. van ManenD.J., CurtisA. and RobertssonJ.O.2006. Interferometric modelling of wave propagation in inhomogeneous elastic media using time‐reversal and reciprocity. Geophysics71, S147–S160.
    [Google Scholar]
  14. MateevaA., FerrandisJ., BakulinA., JorgensenP., GentryC. and LopezJ.2007. Steering virtual sources for salt and subsalt imaging. 77th SEG meeting, San Antonio , Texas , USA , Expanded Abstracts, 3044–3047.
  15. MehtaK., SniederR., CalvertR. and SheimanJ.2008. Acquisition geometry requirements for generating virtual‐source data. The Leading Edge27, 620–629.
    [Google Scholar]
  16. MewhortL., BezdanS. and JonesM.2002. Does it matter what kind of vibroseis deconvolution is used? CSEG Geophysics 2002 Conference, Expanded Abstracts, 1–4.
  17. PolettoF., CoruboloP. and ComelliP.2010. Drill‐bit seismic interferometry with and without pilot signals. Geophysical Prospecting58, 257–265.
    [Google Scholar]
  18. PolettoF., PetronioL., FarinaB. and SchleiferA.2008. Single Well Imaging in cased borehole by interferometry. 70th EAGE meeting, Rome , Italy , Expanded Abstracts, P278.
  19. SallasJ.J.1984. Seismic vibrator control and the downgoing P‐wave. Geophysics49, 732–740.
    [Google Scholar]
  20. SniederR., WapenaarK. and WeglerU.2007. Unified Green's function retrieval by cross‐correlation; connection with energy principles. Physical Review E75, 036103.
    [Google Scholar]
  21. VasconcelosI. and SniederR.2008a. Interferometry by Deconvolution: Part 1 – Theory for acoustic wave and numerical examples. Geophysics73, S115–129.
    [Google Scholar]
  22. VasconcelosI. and SniederR.2008b. Interferometry by Deconvolution: Part 2 – Theory for elastic waves and application to drill‐bit seismic imaging. Geophysics73, S129–141.
    [Google Scholar]
  23. WapenaarK. and FokkemaJ.2006. Green's function representation for seismic interferometry. Geophysics71, SI33–SI46.
    [Google Scholar]
  24. WapenaarK., Van Der NeutJ. and RuigrokE.2008. Passive seismic interferometry by multidimensional deconvolution. Geophysics73, A51–A56.
    [Google Scholar]
  25. ZanferrariA., PoliM.E. and RoglediS.2002. The external thrust‐belt of the eastern Southern Alps in Friuli (NE Italy). Memorie della Società Geologica Italiana54, 159–162.
    [Google Scholar]
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Seismic interferometry experiment in a shallow cased borehole using a seismic vibrator source‡
Geophysical Prospecting 59, 464 (2011); https://doi.org/10.1111/j.1365-2478.2010.00933.x
/content/journals/10.1111/j.1365-2478.2010.00933.x
/content/journals/10.1111/j.1365-2478.2010.00933.x
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  • Article Type: Research Article
Keyword(s): Overburden; Seismic interferometry; Vibroseis

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