Testing of Snorre Field Foam Assisted Water Alternating Gas (FAWAG) Performance in New Foam Screening Model

Abstract

Eclipse Functional Foam Model was used in order to provide a guideline for the history matching process (Gas-Oil Ratio (GOR), oil and gas production rates) to the Foam Assisted Water Alternating Gas method in the Snorre field, Norway, where the surfactant solution was injected in two slugs to control gas mobility and prevent gas breakthrough. The simulation showed that the first short slug was not efficient while significant GOR decrease and incremental oil production was obtained after the second longer slug in some periods. This study shows that the Eclipse foam model is applicable to the planning of water and gas injections, the testing of various surfactant properties, and the evaluation of the efficiency of the method at the field scale.