North Sea 4-D diagnostics

Using rock physics to understand reservoir rock properties may guide the interpretation of 4-D simultaneous AVO inversion results.

Lars Gommesen, Henrik Juhl Hansen, Klaus Bolding Rasmussen and Kim Gunn Maver

Part of the Gullfaks field has been repeatedly surveyed seismically so that surface seismic data are available as three partial stacks for 1985, 1996, 1999 and 2003, respectively. Time-lapse, or 4-D, simultaneous amplitude variations with offset (AVO) inversion was performed in order to directly estimate acoustic impedance and Poisson's ratio for the baseline survey and to estimate change for each of the monitor surveys. The rock physics analysis of well log data and rock physics modeling for the field were applied for the interpretation of the time lapse inversion results....

Already have an account? Log In

Subscribe now to get unmatched and complete coverage of the Energy industry’s entire landscape!

View our subscription options
  • Access to site wide content
  • Access to our proprietary databases
  • Watch exclusive videos with energy executives
  • Unlimited access to an extensive library of Playbooks, Techbooks, Yearbooks, supplements, and special reports
  • Newly Added! Access to Rextag's Energy Datalink, containing extensive GIS databases of energy assets, production records, processing capacities, physical locations, planned projects, acquisition records, and much more.