PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Redatuming Operators Analysis in Homogeneous Media

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A redatuming operation is used to simulate the acquisition of data in new levels, avoiding distortions produced by near-surface irregularities related to either geometric or material property heterogeneities. In this work, the application of the true-amplitude Kirchhoff redatuming (TAKR) operator on homogeneous media is compared with conventional Kirchhoff redatuming (KR) operator restricted to the zero-offset case. The TAKR and the KR operators are analytically and numerically compared in order to verify their impacts on the data at a new level. Analyses of amplitude and velocity sensitivity of the TAKR and KR were performed: one concerning the difference between the weight functions and the other related to the velocity variation. The comparisons between operators were performed using numerical examples. The feasibility of the KR and TAKR operators was demonstrated not only kinematically but also dynamically for their purposes. In other words, one preserves amplitude (KR), and the other corrects the amplitude (TAKR). In the end, we applied the operators to a GPR data set.
Czasopismo
Rocznik
Strony
414--431
Opis fizyczny
Bibliogr. 19 poz., rys., wykr.
Twórcy
  • Faculty of Geophysics, Federal University of Para, Belem, Brazil
  • Faculty of Meteorology, Federal University of Para, Belem, Brazil
  • Faculty of Geophysics, Federal University of Para, Belem, Brazil
  • National Institute of Petroleum Geophysics (INCT-GP), Salvador, Brazil
autor
  • Geoprocessados, Virlemosa, Mexico
Bibliografia
  • [1] Alkhalifah, T., and C. Bagaini (2006), Straight-rays redatuming: A fast and robust alternative to wave-equation-based datuming, Geophysics 71, 3, U37–U46, DOI:10.1190/1.2196032.
  • [2] Alley, R., and C. Bentley (1988), Ice-core analysis on the Siple Coast of West Antarctica, Ann. Glaciol. 11, 1-7.
  • [3] Berryhill, J.R. (1984), Wave-equation datuming before stack, Geophysics 49, 11, 2064-2066, DOI: 10.1190/1.1441620.
  • [4] Bleistein, N. (1986), Two-and-one-half dimensional in-plane wave propagation, Geophys. Prospect. 34, 5, 686-703, DOI: 10.1111/ j.1365-2478.1986.tb00488.x.
  • [5] Bradford, J. (1999), Characterizing shallow aquifers with wave-propagation based geophysical methods: Imaging and attribute analysis, Ph.D. Thesis, Rice University, Houston, USA, http://hdl.handle.net/1911/18730.
  • [6] Cassidy, N.J. (2007), Evaluating LNAPL contamination using GPR signal attenuation analysis and dielectric property measurements: Practical implications for hydrological studies, J. Contam. Hydrol. 94, 1-2, 49-75, DOI:10.1016/j.jconhyd.2007.05.002.
  • [7] Cox, M. (1999), Static Corrections for Seismic Reflection Surveys, Geophysical References, Vol. 9, Society of Exploration Geophysicists, Tulsa.
  • [8] Jin, D., P. Yan, Q.-S. Tang, H.-B. Zheng, Y.-L. Wang, Q.-J. Lin, and J. Chen (2011), Application of Kirchhoff integral wave field extrapolation to water layer datuming for OBC record, J. Trop. Oceanogr. 30, 6, 84-89.
  • [9] Khwanmuang, W., and S. Udphuay (2012), Ground-penetrating radar attribute analysis for visualization of subsurface archaeological structures, Leading Edge 31, 8, 946-949, DOI:10.1190/tle31080946.1.
  • [10] Klüver, T. (2009), Wavefield separation of dual-sensor towed streamer data using Kirchhoff type datuming and migration operators. In: 79th SEG Annual Meeting, 25-30 October 2009, Houston, USA, 2944-2948.
  • [11] Liu, L., K. He, X. Xie, and J. Du (2007), Image enhancement with wave-equation redatuming: application to GPR data collected at public transportation sites, J. Geophys. Eng. 4, 2, 139-147, DOI: 10.1088/1742-2132/4/2/003.
  • [12] Margrave, G.F., and R.J. Ferguson (1999), Wavefield extrapolation by nonstationary phase shift, Geophysics 64, 4, 1067-1078, DOI: 10.1190/1.1444614.
  • [13] Oliveira, F., M. Pila, A. Novais, J. Costa, and J. Schleicher (2009), 2.5D True-amplitude diffraction-stack redatuming: numerical tests. In: Proc. 11th Int. Congr. of the Brazilian Geophysical Society ”Seismic Processing: Migration”, 1-6
  • [14] Pila, M.F., J. Schleicher, A. Novais, and T.A. Coimbra (2014), True-amplitude singlestack redatuming, J. Appl. Geophys. 105, 95-111, DOI: 10.1016/j.jappgeo.2014.03.010.
  • [15] Schmalz, B., and B. Lennartz (2002), Analyses of soil water content variations and GPR attribute distributions, J. Hydrol. 267, 3-4, 217-226, DOI: 10.1016/S0022-1694(02)00152-X.
  • [16] Schneider, W.A. (1978), Integral formulation for migration in two and three dimensions, Geophysics 43, 1, 49-76, DOI: 10.1190/1.1440828.
  • [17] Tygel, M., J. Schleicher, P. Hubral, and L.T. Santos (1998), 2.5-D true amplitude Kirchhoff migration to zero offset in laterally inhomogeneous media, Geophysics 63, 2, 557-573, DOI:10.1190/1.1444356.
  • [18] Wiggins, J.W. (1988), Attenuation of complex water-bottom multiples by waveequation-based prediction and subtraction, Geophysics 53, 12, 1527-1539, DOI:10.1190/1.1442434.
  • [19] Zhao, W., E. Forte, M. Pipan, and G. Tian (2013), Ground penetrating radar (GPR) attribute analysis for archaeological prospection, J. Appl. Geophys. 97, 107-117, DOI: 10.1016/j.jappgeo.2013.04.010.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-7abbf3c9-04c2-41b3-a845-5e2ee2c91163
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.