Prestack inversion for porosity, shale volume, and sand probability in the Havert Formation of the Goliat Field, SW Barents Sea
- Honore Yenwongfai (Statoil ASA/University of Oslo) | Nazmul Mondol (University of Oslo) | Jan Inge Faleide (University of Oslo) | Isabelle Lecomte (NORSAR)
- Document ID
- Society of Exploration Geophysicists
- 2016 SEG International Exposition and Annual Meeting, 16-21 October, Dallas, Texas
- Publication Date
- Document Type
- Conference Paper
- 2016. Society of Exploration Geophysicists
- Porosity, Seismic, Reservoir characterization, Shale
- 1 in the last 30 days
- 60 since 2007
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This study implements a multidisciplinary approach to porosity (PHIE), shale volume (Vsh) and sand probability estimation from prestack angle gathers and petrophysical well logs. A rock physics feasibility study revealed the optimum petrofacies discriminating ability of extended elastic impedance (EEI) and PHIE. Multilinear regression analysis is then applied to the output of the simultaneous inversion of seismic data to estimate Vsh and PHIE. Probability distribution functions (PDFs) and a priori facies extracted from the well data are then applied to the Vsh and PHIE volumes to obtain a sand probability cube for the Lower Triassic Havert Formation in the Goliat field, SW Barents Sea.
Presentation Date: Monday, October 17, 2016
Start Time: 1:50:00 PM
Presentation Type: ORAL
|File Size||1 MB||Number of Pages||5|
Castagna,J. P.,S.Sun, andR. W.Siegfried,2003,Instantaneous spectral analysis: detection of low-frequency shadows associated with hydrocarbons:The Leading Edge,22, no.2,120–127.10.1190/1.1559038.
Chapman,M.,E.Liu, andX.-Y.Li,2006,The influence of fluid-sensitive dispersion and attenuation on AVO analysis:Geophysical Journal International,167, no.1,89–105.10.1111/j.1365-246X.2006.02919.x.
Smith,G. C., andP. M.Gidlow,1987,Weighted stacking for rock property estimation and detection of gas:Geophysical Prospecting,35, no.9,993–1014.10.1111/j.1365-2478.1987.tb00856.x.
Wilson,A.,M.Chapman, andX.-Y.Li,2009,Frequency-dependent AVO Inversion:79thAnnual International Meeting, SEG, Expanded Abstracts,341-345,10.1190/1.3255572.