Newberry Volcano EGS Demonstration Well 55-29 Stimulation Data

Abstract

The Newberry Volcano EGS Demonstration in central Oregon, a 3 year project started in 2010, tests recent technological advances designed to reduce the cost of power generated by EGS in a hot, dry well (NWG 55-29) drilled in 2008. First, the stimulation pumps used were designed to run for weeks and deliver large volumes of water at moderate well-head pressure. Second, to stimulate multiple zones, AltaRock developed thermo-degradable zonal isolation materials (TZIMs) to seal off fractures in a geothermal well to stimulate secondary and tertiary fracture zones. The TZIMs degrade within weeks, resulting in an optimized injection/ production profile of the entire well. Third, the project followed a project-specific Induced Seismicity Mitigation Plan (ISMP) to evaluate, monitor for, and mitigate felt induced seismicity. Stimulation started October 17, 2012 and continued for 7 weeks, with over 41,000 m3 of water injected. Two TZIM treatments successfully shifted the depth of stimulation. Injectivity, DTS, and seismic analysis indicate that fracture permeability in well NWG 55-29 was enhanced by two orders of magnitude.

This submission includes all of the files and reports associated with the geophysical exploration, stimulation, and monitoring included in the scope of the project.

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Additional Info

DOE Project Name: Newberry Volcano EGS Demonstration Project
DOE Project Number: EE0002777
DOE Project Lead: Lauren Boyd
DOI: 10.15121/1357916
Last Updated: 12 months ago
Dec
2012
Data from December, 2012
Submitted Dec 4, 2013

Contact

AltaRock Energy Inc


206.729.2400

Status

Publicly accessible License 

Authors

Trenton T.
AltaRock Energy Inc

Keywords

geothermal, EGS, diverter material, microseismic monitoring, temperature monitoring, groundwater monitoring, NEWGEN, Geophysical Logs, Diverter Injection, Seismic, Well Construction, Daily Report, Tracer Injection and groundwater monitoring, Lithology, Temperature, Geochemistry, Stimulation Data, Publications, WHP, Flow, stimulation, hydraulic, water, seismicity, monitoring, microseismicity, well, log, drilling, report, catalog, geophysics, casing, 55-29

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