Underground gas storage formed from the depleted oil/gas reservoir has excellent
development potential for storing a large amount of natural gas. However, the reservoir in …

Steam production from high enthalpy geothermal systems is frequently accompanied by the
emission of non-condensable gases (NCGs), initially dissolved in the liquid phase or mixed …

Enhanced geothermal system (EGS) is a primary method to develop geothermal resources
stored in hot dry rock (HDR), but it faces several key problems, such as unreasonable …

Thermal breakthrough time of geothermal system directly affects its service life. When a
geothermal system consists of multiple aquifers with different permeability, a highly …

A new transient geothermal wellbore simulator is presented. It is based on a mathematical
model consisting of three conservation equations (mass, momentum and energy) and a slip …

We present a new well model aimed at simulating deep and superhot geothermal wells
within reservoir-scale flow models. The model uses a classic multi-segment approach to …

In a recent paper we discussed the development of a new transient geothermal wellbore
simulator. In the present paper we discuss the application of this simulator to the modelling …

The design of coaxial borehole heat exchangers using compressible fluids, such as
supercritical CO 2, needs numerical simulations. The use of compressible fluids couples the …

Generally, the exploitation of a high-temperature geothermal resource mainly includes heat
extraction from the thermal reservoir, geothermal fluid transportation in the wellbore and …

Two-phase flow (flow of water in both liquid and gas phase, containing a non-condensable
gas such as CO2) in the wellbore is one of the most important processes in the production …