Print Email Facebook Twitter Application of the finite-difference contrast-source inversion algorithm to seismic full-waveform data Title Application of the finite-difference contrast-source inversion algorithm to seismic full-waveform data Author Abubakar, A. Hu, W. Habashy, T.M. Van den Berg, P.M. Faculty Applied Sciences Department IST/Imaging Science and Technology Date 2009-12-17 Abstract We have applied the finite-difference contrast-source inversion (FDCSI) method to seismic full-waveform inversion problems. The FDCSI method is an iterative nonlinear inversion algorithm. However, unlike the nonlinear conjugate gradient method and the Gauss-Newton method, FDCSI does not solve any full forward problem explicitly in each iterative step of the inversion process. This feature makes the method very efficient in solving large-scale computational problems. It is shown that FDCSI, with a significant lower computation cost, can produce inversion results comparable in quality to those produced by the Gauss-Newton method and better than those produced by the nonlinear conjugate gradient method. Another attractive feature of the FDCSI method is that it is capable of employing an inhomogeneous background medium without any extra or special effort. This feature is useful when dealing with time-lapse inversion problems where the objective is to reconstruct changes between the baseline and the monitor model. By using the baseline model as the background medium in crosswell seismic monitoring problems, high quality time-lapse inversion results are obtained. Subject finite difference methodsgeophysical techniquesinverse problemsseismology To reference this document use: http://resolver.tudelft.nl/uuid:828be3c9-82fb-4ec3-b663-85d09d0a130f DOI https://doi.org/10.1190/1.3250203 Publisher Society of Exploration Geophysicists ISSN 0016-8033 Source Geophysics, 74 (6), 2009 Part of collection Institutional Repository Document type journal article Rights (c) 2009 Society of Exploration Geophysicists Files PDF vandenBerg_2009.pdf 1.09 MB Close viewer /islandora/object/uuid:828be3c9-82fb-4ec3-b663-85d09d0a130f/datastream/OBJ/view