Hydraulic shearing is an appealing reservoir stimulation strategy for Enhanced Geothermal Systems. It is believed that hydro-shearing is likely to simulate a fracture network that covers a relatively large volume of the reservoir whereas hydro-fracturing tends to create a small number of fractures. In this paper, we examine the geomechanical and hydraulic behaviors of natural fracture systems subjected to hydro-shearing stimulation and develop a coupled numerical model within the framework of discrete fracture network modeling. We found that in the low pressure hydro-shearing regime, the coupling between the fluid phase and the rock solid phase is relatively simple, and the numerical model is computationally efficient. Using this modified model, we study the behavior of a random fracture network subjected to hydro-shearing stimulation.
OwnerNational Renewable Energy Laboratory (NREL) - view all
Update frequencyunknown
Last updatedabout 1 year ago
Format
Overviewdiscrete fracture networkegsenhanced geothermal systemgeothermalhydraulic fracturinghydraulic shearinghydro-shearingreservoir modelingreservoir stimulation
Additional Information
KeyValue
dcat_issued2012-01-01T07:00:00Z
dcat_modified2017-05-23T21:36:39Z
dcat_publisher_nameLawrence Livermore National Laboratory
guidhttps://data.openei.org/submissions/3019
ib1_trust_framework[]
language