Abstract
Three-dimensional (3D) inversion of marine controlled source electromagnetic (MCSEM) plays an important role for quantitative interpretation and assessment for potential offshore hydrocarbon reservoir. However, 3D inversion in practice is very expensive considering enormous computational cost, especially for 3D large scale problem. We present an efficient approach to 3D inversion of MCSEM data, which is based on an inexact Gauss Newton (GN) method coupled with adaptive preconditioned conjugate gradient (PCG) iterations. This algorithm seeks optimal number of PCG iterations to perform each GN iteration efficiently. Experiment on synthetic MCSEM example shows this approach can remarkably reduce the computational cost, demonstrating its efficiency and potential for 3D EM large scale problem.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
