Abstract：In order to tackle the problem of complex overburden formation, R. Calvert and A Bakulin of Shell developed the virtual source method, which can solve the problem of building accurate velocity model. In this paper, the authors have dealt with the principle of virtual source, made a comparison with the crosswell seismic technology, and described its application in such aspects as time-lapse monitoring, imaging and virtual-shear wave. The results can provide some guidance for the understanding of this method.
[1] Andrey Bakulin,Rodney Calvet.The virtual source method:Theory and case study[J].Geohysics,2006,71(4):139-150.[2] Valeri Korneev,Andrey Bakulin.On the fundamentals of the virtual source method[J].Geohysics,2006,71(3):A139-A17.[3] Andrey Bakulin, Rodney Calvert.Virtual Source Method: overview of history and development//2008,SEG:2726-2730.[4] Andrey Bakulin and Rodney Calvert.Virtual Source: new method for imaging and 4D below complex overburden//SEG Int'l Exposition and 74th Annual Meeting.[5] Kurang Metha,Denis Kiyashchenko,Patsy Jorgensen,et al.Virtual source method applied to crosswell and horizontal well geometries[J].TLE2010(June):712-723.[6] Kurang Mehta, Jon L Sheiman, Roel Snieder,et al.Strengthening the virtual-source method for time-lapse monitoring[J].Geophysics,2008,73(3):73-80.[7] Kurang Mehta,Jonathan Sheiman, Roel Snieder et al.The virtual source method applied to Mars field OBC data for time-lapse monitoring//SEG/San Antonio 2007 Annual Meeting.[8] Valeri Korneev,Andrey Bakulin.Imaging and monitoring with Virtual Sources on a synthetic 3D dataset from the Middle East//SEG 2008:3204-3207.[9] Albena Mateeva,Javier Ferrandis,Andrew Bakulin,et al.Steering virtual sources for salt and subsalt imaging//SEG 2007:3044-3048.[10] Rongrong Lu,Mark Willis,Xander Campman,et al.Redatuming through a salt canopy and target-oriented salt-flank imaging[J].Geophysics,2008,73(3):63-71.[11] Andrey Bakulin,Rodney Calvert.Virtual Shear Source:a new method for shear-wave seismic surveys//2005 SEG75,VSP1.7:2633-2636.[12] Bakulin A,Mateeva A.Estimating interval shear-wave splitting from multicomponent virtual shear checkshots[J].Geophysics,2008,79:39-43.[13] Soocheol Jeong,Joongmoo Byun,Soon Jee Seol,et al.Generation of the reflected S wave data from air gun data by using virtual shear sources//SEG2010,MC2.5:1153.[14] Bakulin A,A Mateeva,R Calvert,et al.Virtual shear checkshot with airguns//76th Annual International Meeting,SEG,Expanded Abstracts,2006:3437-3441.[15] Bakulin A,Calvert R.Virtual shear source: A new method for shear-wave seismic surveys//75th Annual International Meeting, SEG,Expanded Abstracts,2005:2633-2636.[16] Bakulin A,Mateeva A,Calvert R,et al.Virtual shear source makes shear waves with airguns[J].Geophysics,2007,72:7-11.
