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Newberry EGS Demonstration: Well 55-29 Stimulation Data 2014

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The Newberry Volcano EGS Demonstration in central Oregon, a 5 year project begun 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. An initial stimulation was conducted in 2012 and continued for 7 weeks, with over 41,000 m3 of water injected. Further analysis indicated a shallow casing leak and an unstable formation in the open hole. The well was repaired with a shallow casing tieback and perforated liner in the open hole and re-stimulated in 2014. The second stimulation started September 23rd, 2014 and continued for 3 weeks with over 9,500 m3 of water injected. The well was treated with several batches of newly tested TZIM diverter materials and a newly designed Diverter Injection Vessel Assembly (DIVA), which was the main modification to the original injection system design used in 2012. A second round of stimulation that included two perforation shots and additional batches of TZIM was conducted on November 11th, 2014 for 9 days with an additional 4,000 m3 of water injected. The stimulations resulted in a 3-4 fold increase in injectivity, and PTS data indicates partial blocking and creation of flow zones near the bottom of the well.

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

Citation Formats

AltaRock Energy Inc. (2015). Newberry EGS Demonstration: Well 55-29 Stimulation Data 2014 [data set]. Retrieved from https://dx.doi.org/10.15121/1214129.
Export Citation to RIS
Cladhouhos, Trenton T., Petty, Susan, Nordin, Yini, Moore, Michael, Grasso, Kyla, Uddenberg, Matthew E., Swyer, Michael W., Sonnethal, Eric L., Smith, J. Torquil, Kim, Jihoon, Yang, Li, Foulger, Gillian R., and Julian, Bruce R. Newberry EGS Demonstration: Well 55-29 Stimulation Data 2014. United States: N.p., 03 Sep, 2015. Web. doi: 10.15121/1214129.
Cladhouhos, Trenton T., Petty, Susan, Nordin, Yini, Moore, Michael, Grasso, Kyla, Uddenberg, Matthew E., Swyer, Michael W., Sonnethal, Eric L., Smith, J. Torquil, Kim, Jihoon, Yang, Li, Foulger, Gillian R., & Julian, Bruce R. Newberry EGS Demonstration: Well 55-29 Stimulation Data 2014. United States. https://dx.doi.org/10.15121/1214129
Cladhouhos, Trenton T., Petty, Susan, Nordin, Yini, Moore, Michael, Grasso, Kyla, Uddenberg, Matthew E., Swyer, Michael W., Sonnethal, Eric L., Smith, J. Torquil, Kim, Jihoon, Yang, Li, Foulger, Gillian R., and Julian, Bruce R. 2015. "Newberry EGS Demonstration: Well 55-29 Stimulation Data 2014". United States. https://dx.doi.org/10.15121/1214129. https://gdr.openei.org/submissions/508.
@div{oedi_3315, title = {Newberry EGS Demonstration: Well 55-29 Stimulation Data 2014}, author = {Cladhouhos, Trenton T., Petty, Susan, Nordin, Yini, Moore, Michael, Grasso, Kyla, Uddenberg, Matthew E., Swyer, Michael W., Sonnethal, Eric L., Smith, J. Torquil, Kim, Jihoon, Yang, Li, Foulger, Gillian R., and Julian, Bruce R.}, abstractNote = {The Newberry Volcano EGS Demonstration in central Oregon, a 5 year project begun 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. An initial stimulation was conducted in 2012 and continued for 7 weeks, with over 41,000 m3 of water injected. Further analysis indicated a shallow casing leak and an unstable formation in the open hole. The well was repaired with a shallow casing tieback and perforated liner in the open hole and re-stimulated in 2014. The second stimulation started September 23rd, 2014 and continued for 3 weeks with over 9,500 m3 of water injected. The well was treated with several batches of newly tested TZIM diverter materials and a newly designed Diverter Injection Vessel Assembly (DIVA), which was the main modification to the original injection system design used in 2012. A second round of stimulation that included two perforation shots and additional batches of TZIM was conducted on November 11th, 2014 for 9 days with an additional 4,000 m3 of water injected. The stimulations resulted in a 3-4 fold increase in injectivity, and PTS data indicates partial blocking and creation of flow zones near the bottom of the well.

This submission includes all of the files and reports associated with the stimulation, pressure testing, and monitoring included in the scope of the project.}, doi = {10.15121/1214129}, url = {https://gdr.openei.org/submissions/508}, journal = {}, number = , volume = , place = {United States}, year = {2015}, month = {09}}
https://dx.doi.org/10.15121/1214129

Details

Data from Sep 3, 2015

Last updated Jul 9, 2024

Submitted Sep 3, 2015

Organization

AltaRock Energy Inc

Contact

Trenton T. Cladouhos

206.729.2400

Authors

Trenton T. Cladhouhos

AltaRock Energy Inc

Susan Petty

AltaRock Energy Inc

Yini Nordin

AltaRock Energy Inc

Michael Moore

AltaRock Energy Inc

Kyla Grasso

AltaRock Energy Inc

Matthew E. Uddenberg

AltaRock Energy Inc

Michael W. Swyer

AltaRock Energy Inc

Eric L. Sonnethal

Lawrence Berkeley National Laboratory

J. Torquil Smith

Lawrence Berkeley National Laboratory

Jihoon Kim

Lawrence Berkeley National Laboratory

Li Yang

Lawrence Berkeley National Laboratory

Gillian R. Foulger

Foulger Consulting

Bruce R. Julian

Foulger Consulting

Research Areas

DOE Project Details

Project Name Newberry EGS Demonstration Project

Project Lead Lauren Boyd

Project Number EE0002777

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