TY  - JOUR
ID  - epos1849
UR  - http://doi.org/10.1016/j.crte.2010.04.002
IS  - 7-8
A1  - Portier, Sandrine
A1  - Vuataz, François D.
Y1  - 2010///
N2  - The Soultz Enhanced Geothermal System (EGS) reservoir's response to chemical stimulation is assessed by numerical simulation of coupled thermo-hydraulic-chemical processes. To assess chemical interactions between host rocks and a mixture of HCl and HF as well as its potential effects on the Soultz EGS reservoir, new modelling efforts using the FRACHEM code have been initiated. This article presents the model calibration and results. Simulations consider realistic conditions with available data sets from the EGS system at Soultz. Results indicate that the predicted amount of fracture sealing minerals dissolved by injection of a mixture of acids Regular Mud Acid (RMA) was consistent with the estimated amount from the test performed on GPK4 well at Soultz EGS site. Consequently reservoir porosity and permeability can be enhanced especially near the injection well by acidizing treatment.
PB  - Elsevier
JF  - Comptes Rendus Geoscience
VL  - 342
SN  - 1631-0713
TI  - Developing the ability to model acid-rock interactions and mineral dissolution during the RMA stimulation test performed at the Soultz-sous-Forêts EGS site, France
SP  - 668
AV  - none
EP  - 675
ER  -