Prestack inversion for porosity, shale volume, and sand probability in the Havert Formation of the Goliat Field, SW Barents Sea

Yenwongfai, Honore (Statoil ASA/University of Oslo) | Mondol, Nazmul (University of Oslo) | Inge Faleide, Jan (University of Oslo) | Lecomte, Isabelle (NORSAR)


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

Location: 155

Presentation Type: ORAL

  Geologic Time: Phanerozoic > Mesozoic > Triassic > Lower Triassic (0.35)
  Industry: Energy > Oil & Gas > Upstream (1.00)
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