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Title: 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.

Authors:
Publication Date:
Other Number(s):
271
DOE Contract Number:  
EE0002777
Product Type:
Dataset
Research Org.:
DOE Geothermal Data Repository; AltaRock Energy Inc
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)
Subject:
15 Geothermal Energy
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
OSTI Identifier:
1357916
DOI:
10.15121/1357916

Citation Formats

Cladouhos, Trenton T. Newberry Volcano EGS Demonstration Well 55-29 Stimulation Data. United States: N. p., 2012. Web. doi:10.15121/1357916.
Cladouhos, Trenton T. Newberry Volcano EGS Demonstration Well 55-29 Stimulation Data. United States. doi:10.15121/1357916.
Cladouhos, Trenton T. 2012. "Newberry Volcano EGS Demonstration Well 55-29 Stimulation Data". United States. doi:10.15121/1357916. https://www.osti.gov/servlets/purl/1357916. Pub date:Sat Dec 08 00:00:00 EST 2012
@article{osti_1357916,
title = {Newberry Volcano EGS Demonstration Well 55-29 Stimulation Data},
author = {Cladouhos, Trenton T},
abstractNote = {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.},
doi = {10.15121/1357916},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {12}
}

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