Geothermal Resource Assessment

Geothermal resource assessment involves studies and research aimed at assessing the nature and energy production capacity of geothermal systems. It is based on the data available at any given time, or stage in the development of a system, such as surface exploration data, results of drilling exploration and production wells as well as production monitoring data. 

Iceland GeoSurvey offers comprehensive services for the following main geothermal resource assessment phases, or items: 

• Conceptual model
  Development based on available data and their interpretation. Summarizes available understanding in one unified model of the nature and characteristics of the system. Conceptual models are used when wells are sited in the field as well as providing the basis of static and dynamic reservoir modelling.
• Volumetric assessment
  Such assessment evaluates the energy production potential of a system (static modelling). The so-called Monte Carlo method is often applied.
• Geothermal system modelling
  Through methods ranging from the use of simple analytical models, through lumped parameter models to highly complex numerical models. The purpose is to simulate the nature and production response of a geothermal system and to estimate the systems energy production potential.
• Estimate the effects of reinjection
  By numerical modelling and the optimum well location.
• Evaluation of the production
  Characteristics of the reservoir fluid based on its chemical characteristics and prevailing reservoir conditions.
• Optimization of field development 
  On basis of the results of the above phases, and other relevant studies.
   

Geothermal resource evaluations, or feasibility studies, often comprise some, or all, of the above items. 

Projects in Iceland: In low-and high-enthalpy systems.

Projects worldwide: China, India, Kenya, Hungary, El Salvador.