RINGEN Geothermal Project Development MDP

In this multidisciplinary project several aspects of geosciences are combined. The regional geology background was summarized and linked to the borehole data.<br/>Multiple tests were conducted on the well to answer several questions. The slug test indicated that the fracture is still open and essentially confirmed that it is a shear fracture,...

Analysis of mixing during hydrogen storage in gas reservoirs: A reservoir simulation study

This thesis contributes to increasing the technology readiness level of hydrogen storage in gas reservoirs, which will be required when hydrogen has become a major energy carrier in the future Dutch energy system. It addresses the mixing processes with resident gases that occur during hydrogen storage operations in gas fields, and analyzes their...

Flexible well pattern and NPV optimisation on large scale geothermal field development

The Netherlands has set the ambitious goal to be CO2 neutral by 2050 and signed the Paris Treaty in 2015. The contribution of geothermal energy to reaching this goal are outlined in the Masterplan in 2018 which attempts to reduce CO2 emissions. It is imperative to enhance geothermal participation in renewable energy resources, so this thesis...

The geothermal utilization of shut-in or abandoned hydrocarbon wells: Technical and economical aspects

This research is intended to create an insight into the heat exchange occurring in a well and to find ideal well conditions in which the performance of the heat exchange is maximised. For demonstrating and studying these aspects the well of Grouw-01 is analysed. The well of Grouw-01 is a depleted gas well attained from Vermilion Energy and is in...

The Thermal Interference Effect of Neighbouring Geothermal License Areas: a Parameter Modelling Study

In a future scenario, the successful development of geothermal industry will result in the large-scale deployment of new deep geothermal projects. In highly populated areas, such as the Netherlands, such a development will lead to a dense grid of neighbouring licenses. In such a situation a new project requires careful design and planning as the...

An experimental investigation of the effects of corrosion inhibitor on the mechanical properties of reservoir rock

Geothermal energy is one of the more sustainable alternatives to fossil fuels that could facilitate the energy transition. The production of geothermal energy incorporates the use of corrosion inhibitors to protect the steel well-parts from the corrosive production fluid. The injection of inhibitors leads to a risk of exposing the reservoir rock...

Investigations of the Destruction Mechanism of High Pressure Water Jetting

As the demand for green energy is growing, geothermal energy will play an important part in the future energy mix. Geothermal energy is widely used for both direct-use and electricity generation. A viable geothermal reservoir must have a sufficiently high temperature, a fluid pathway through the rock (permeability) and a fluid that can collect...

‘The economic potential of deep, direct use geothermal systems in the Netherlands’

For this thesis, a probabilistic techno-economic model is developed for deep, direct use geothermal projects in the Netherlands. As a case study, data from the future DAP doublet (TU Delft) is inserted wherein multiple scenarios are researched that model variations in well capacity, energy prices, project design, government policies, brine gas...

Synergy between geothermal and stranded oil fields to add value to geothermal projects

The Dutch Government is aiming for a CO2 neutral energy supply in 2050; this requires a transition from using energy from fossil fuels to using renewable energy sources. Decline in oil production in the Netherlands occurs in an epoch with an increased interest in geothermal heat production as an alternative source of energy. In the present study...

Two-Scale Analysis of The Dissolution of Calcite in Geothermal Sandstone Reservoirs: An Experimental and Numerical Study

Experimental studies and three dimensional finite element core scale and field scale models were used to study the effect of calcite dissolution on low-enthalpy sandstone geothermal reservoirs. A series of core flooding experiments were conducted, monitoring the porosity and permeability at 150 ◦C and 20 bars back pressure to see the effect of...

The influence of fractures on geothermal heat production in the Roer Valley Graben

This thesis looks into the possibility to produce geothermal energy in the Roer Valley Graben. The locations in this area are limited due to the low permeability of the deep Triassic layers. Fractures can enhance the heat production by increasing the effective permeability and decrease the pressure that is needed to produce the heat. However,...