Samuel Brown
Petroleum Geo-Services
15 Papers
24 Citations
Samuel Brown is an academic researcher from Petroleum Geo-Services. The author has contributed to research in topics: Model building & Refraction. The author has an hindex of 3, co-authored 15 publications.
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Papers
High-fidelity complete wavefield velocity model building and imaging in shallow water environments - A North Sea case study
Grunde Rønholt,Ø. Korsmo,Samuel Brown,Alejandro Valenciano,Dan Whitmore,Nizar Chemingui,Sverre Brandsberg,Dahl,Volker Dirks,Jan-Erik Lie +9 more
TL;DR: In this article, the velocity information has been derived by tomographically inverting residual moveout information of common image gathers, which have been computed using an initial velocity field, and this methodology proves to be challenging in shallow water environments, particularly when strong and rapid velocity variations in the very shallow overburden need to be recovered, while moving out information from reflected arrivals is very sparse or not available.
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Anisotropic Model Building With Well Control
TL;DR: In this article, a tomographic model building approach that uses well data together with surface seismic data is presented, which consists of four major steps: preparing data, estimating the local anisotropic parameters at the well locations, extrapolating the local parameters to generate a volumetric model for further tomographic update, and finally tomographic updating with well control.
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High fidelity imaging using reflections, refractions and multiples: North Sea example, Johan Sverdrup Field
Grunde Rønholt,Ø. Korsmo,B. Danielsen,Samuel Brown,Sverre Brandsberg-Dahl,Alejandro Valenciano,Nizar Chemingui,Dan Whitmore,Jan Erik Lie +8 more
TL;DR: In this paper, the authors demonstrate a novel workflow using reflections, refractions and multiples for building highly accurate PSDM velocity models for a complex geological setting by combining wavelet shift tomography, full waveform inversion and separated wavefield imaging.
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Broadband Velocity Model Building and Imaging Using Reflections, Refractions and Multiples from Dual-sensor Streamer Data
Grunde Rønholt,J.E. Lie,Ø. Korsmo,B. Danielsen,Sverre Brandsberg-Dahl,Samuel Brown,Nizar Chemingui,A. Valenciano Mavilio,Dan Whitmore +8 more
- 16 Jun 2014
TL;DR: In this paper, the authors demonstrate a novel workflow using reflections, refractions and multiples for building highly accurate PSDM velocity models for a complex geological setting by combining wavelet shift tomography, full waveform inversion and separated wavefield imaging.
3
A fast VTI model building method using model based moveout
TL;DR: A method to reduce the effort of migration and residual moveout estimation by applying local approximations to the imaging and modeling operators using model based moveout, which is a mapping between imaged specular reflections in initial and updated models is discussed.
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