We review ten historical Enhanced Geothermal Systems (EGS) projects and find that
typically, during injection:(1) flow from the wellbore is from preexisting fractures,(2) …

The technical feasibility of Enhanced Geothermal Systems (EGS) has been demonstrated for
the first time in fractured crystalline basement rocks at the Soultz-sous Forêts project …

All reservoirs are fractured to some degree. Depending on the density, dimension,
orientation and the cementation of natural fractures and the location where the hydraulic …

Over the past 20 years, the Soultz experimental geothermal site in Alsace, France, has been
explored in detail by the drilling of five boreholes, three of which extend to 5km depth. Data …

An extended description of the implementation of the deep geothermal wells GRT-1 and
GRT-2 respectively drilled in 2012 and 2014 in the framework of the ECOGI project is given …

We describe a numerical investigation of seismicity induced by injection into a single
isolated fracture. Injection into a single isolated fracture is a simple analog for shear …

This study aims to guide reservoir engineers/managers in the selection of a combination of
parameters from amongst various possible alternatives in developing deep geothermal …

Since the 1980′ s, more than 15 geothermal wells have been drilled in the Upper Rhine
Graben (URG), representing more than 60 km of drill length. Although some early concepts …

Abstract Enhanced Geothermal Systems (EGS), engineered deep rock heat exchangers, are
often touted for their massive untapped renewable energy potential. However, numerous …

Deep geothermal energy represents a key element of future renewable energy production
due to its base load capability and the almost inexhaustible resource base. Especially with …