Geothermal Services

Resource Assessment, Development Planning, Feasibility & Due Diligence

Geologica Geothermal Group focuses our resource assessment and development studies and planning on collecting the necessary information for and performing quantitative analysis of resource characteristics (such as size, heat, well productivity, and/or chemistry) based on a thorough conceptual understanding of the reservoir. Our data collection efforts for this phase of geothermal development include well drilling and testing, heat flow and seismic studies, detailed geoscientific studies, tectonic setting, reservoir geochemistry, static and dynamic well measurements and reservoir evaluations. We have performed well flow testing and geochemical sampling on individual exploration wells as well as entire wellfields during production.  Our testing experience includes tracer testing, enthalpy testing sampling of saturated and superheated steam, two-phase systems as well as single-phase brine.

Our focus includes conceptual and quantitative modeling for characterizing resource potential for initial project development, development planning, and feasibility studies, due diligence, project life extension and expansion. Our personnel are accomplished at integrating and interpreting acquired data to develop or refine the conceptual or numerical model of a geothermal system.  We are applying our expertise in geothermal systems to developing numerical simulations firmly tied to a viable conceptual model.

Our geochemical work has contributed to scaling and corrosion mitigation plans, evaluation of recharge and injection strategies. Our use of geophysical and drilling data has contributed to determining the proven, probable and potential limits of geothermal reservoirs.  Additional work in plant engineering has contributed to management of geothermal fluids and non-condensible gases, formulation of plant processes, economic evaluations and environmental impact mitigation.

Geologica Geothermal Group has performed numerous due diligence studies of geothermal facilities from evaluation of resource capacity and reserves, expansion and development costs, drilling risk assessment, power plant operations and maintenance to environmental compliance and environmental risk related to potential soil and and regional hydrogeology.  Data is interpreted and integrated into a conceptual model which describes the geometry, heat fluid flow, and geochemical dynamics of the reservoir.

Numerical simulations grounded in the conceptual model, calibrated to natural state conditions and production histories are used to evaluate reservoir decline and to guide resource optimization.

We apply our thorough understanding of the geothermal development process and facilities and of the uniqueness of geothermal systems throughout the world to address and quantify the risks related to the acquisition, refinancing or continued development of geothermal resources and power generation facilities.

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5 Third St, Suite 420 • San Francisco, California 94103
ph (415) 691-7628