Supercritical well performance simulation using GFlow wellbore simulator: A case study of ultra-hot IDDP wells in Iceland

Abstract

Wellbore modelling was undertaken to forecast production output of wells with feeds accessing supercritical fluids and to characterize the fluid flow and energy at the wellhead. This paper exhibits the use of the GFlow wellbore simulator developed by GNS Science and GERD to demonstrate its supercritical capability, handling high temperature and pressure fluid, for data calibration and well output estimation.
Data from IDDP wells drilled in Iceland were used to conduct wellbore calibration and output forecasting. Well flow testing data from IDDP-1 undertaken between 2010 and 2012, andwell IDDP-2 injection test carried out in 2017 were investigated to determine the productivity and potential well output at the given reservoir conditions. The resulting flow conditions at the wellhead are then presented and analysed.