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.
Daily Reports.pdf
PDFDTS Trace Data.dat
datTemperature Profile.JPG
JPEGOctober Flow Test.xlsx
XLSXNovember Flow Test.xlsx
XLSXBackflow Report.xlsx
XLSXGroundwater Average Data.xlsx
XLSXSurface Water and Groundwater Quality Data.pdf
PDFStimulation Results 2013.pdf
PDFProduction Well Targeting 2015.pdf
PDFEGS Demonstration Results Presentation 2014.pptx
PPTXEGS Demonstration Results 2015.pdf
PDFTHMC Modeling of Stimulation 2015.pdf
PDFDHP - 9545 ft.xlsx
XLSXDHP - Shoe.xlsx
XLSXPTS Survey Plots - 15_Oct_14.pdf
PDFPTS Survey Data - 15_Oct_14.xls
XLSPTS Survey Plots - 17_Nov_14.pdf
PDFPTS Survey Data - 17_Nov_14.xls
XLSPTS Survey Plots - 18_Nov_14.pdf
PDFPTS Survey Data - 18_Nov_14.xls
XLSPTS Survey Plots - 19_Nov_14.pdf
PDFPTS Survey Data - 19_Nov_14.xls
XLSPTS Survey Plots - 20_Nov_14.pdf
PDFPTS Survey Plots - 20_Nov_14.xls
XLSMT Results.docx
DOCXInduced Seismicity Analysis Report.pdf
PDFWeekly Report - 05_Nov_14.pdf
PDFWeekly Report - 10_Oct_14.pdf
PDFWeekly Report - 12_Nov_14.pdf
PDFWeekly Report - 15_Oct_14.pdf
PDFWeekly Report - 19_Nov_14.pdf
PDFWeekly Report - 22_Oct_14.pdf
PDFWeekly Report - 26_Nov_14.pdf
PDFWeekly Report - 29_Oct_14.pdf
PDF1 - ISMP V4 3Aug11_lowres.pdf
PDFISMP Addendum.pdf
PDFB-Value Cumulative Moments.pdf
PDFISTI Seismic Event Locations.txt
TXTLBNL Seismic Event Locations.txt
TXTClustered Seismic Events 02-26-2015.reloc
relocUnclustered Seismic Events 02-26-2015.reloc
relocClustered Seismic Events 03-11-2015.reloc
relocNewberry NPICKS08.reloc
relocNewberry NPICKS12.reloc
relocNewberry NPICKS14.reloc
relocUnclustered Seismic Events 03-11-2015.reloc
relocLLNL Best Seismic Event Locations.out
outPNSN Seismic Event Locations.csv
CSVNWG 55-29 Schematic 2014.pdf
PDFNewberry 2014 Datalog 1.xlsx
XLSXNewberry 2014 Datalog 2.xlsx
XLSXNewberry Walkaround Log.xlsx
XLSXNewberry Well 55-29 2014.zip
ZIP