Pilgrim Hot Springs Project - PHASE 3

Introduction to Phase 3

This phase of the Pilgrim Hot Springs Project will include flow testing, interference testing, and development of a numerical simulation model. This model is required to understand the reservoir dynamics and adopt an appropriate long-term development and production plan. Data from all prior geoscience and drilling programs and testing will be needed to characterize the conceptual model upon which this model will be based to effectively predict future performance, temperature, pressure and flow behavior.

Task 3.3 Well Testing

Very shortly after the two confirmation holes are drilled (Task 3.2, planed for 2012) they will be briefly flow tested to characterize their temperature, pressure, productivity, and producing zone depth. One or more interference tests will be run to obtain pressure data for history matching during the numerical modeling process. It is expected that some or all of the existing wells completed in the shallow thermal aquifer will be either flowed or monitored during the interference testing. At the completion of this task the conceptual model will be updated and form the basis for the numerical modeling performed in task 4.0.

Task 4.0 Numerical Modeling

A numerical model will be prepared using Tough 2 and incorporating all available and necessary data from the current project and previous work. This model will be utilized to predict possible megawatt outputs from the resource under a variety of possible production/injection scenarios. With completion of the numerical model, all information will be submitted to the DOE independent expert to also determine the capacity of the wells/reservoir.


No work has been completed on this task to date. The lead on this project, Jo Mongrain, will be involved in planning for surface and subsurface data collected in 2011, particularly from the TG holes, to ensure the data is of sufficient quality and resolution for her puposes.

Task 5.0 (continued) Project Management and Reporting

Reports and other deliverables will be provided in accordance with the Federal Assistance Reporting Checklist following the instructions included therein and in accordance with Alaska Energy Authority Renewable Energy Fund reporting guidelines. In addition to formal reports, technology transfer of information from this project will take place through a combination of public meetings in communities affected by the project, as well as release of data and results through web-based reporting tools such as this Wiki.

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