@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/4493b76b-8fd1-49e9-bdf6-b01edabb68ec> a dcat:Dataset ;
    dct:description "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." ;
    dct:identifier <https://data.openei.org/submissions/3477> ;
    dct:issued "2015-07-03T06:00:00+00:00"^^xsd:dateTime ;
    dct:modified "2019-11-14T21:59:22+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-121.4333 43.5167, -121.0333 43.5167, -121.0333 43.9167, -121.4333 43.9167, -121.4333 43.5167))"^^gsp:wktLiteral ] ;
    dct:title "Newberry EGS Demonstration Report: Repairing and Re-stimulating Well 55-29" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Trenton T. Cladouhos" ;
            vcard:hasEmail <mailto:tcladouhos@altarockenergy.com> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/4493b76b-8fd1-49e9-bdf6-b01edabb68ec/resource/1aced38e-26ca-4ba8-b359-825164029edd>,
        <https://data.amerigeoss.org/dataset/4493b76b-8fd1-49e9-bdf6-b01edabb68ec/resource/afcb948e-da69-40aa-adba-72102713e1bf> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "ckan",
        "demonstration",
        "diverter-material",
        "egs",
        "geo",
        "geoss",
        "geothermal",
        "groundwater-monitoring",
        "hydraulic",
        "microseismic-monitoring",
        "national",
        "newberry",
        "newgen",
        "north-america",
        "repair",
        "stimulation",
        "temperature-monitoring",
        "united-states",
        "well" .

<https://data.amerigeoss.org/dataset/4493b76b-8fd1-49e9-bdf6-b01edabb68ec/resource/1aced38e-26ca-4ba8-b359-825164029edd> a dcat:Distribution ;
    dct:description "Appendices for the Phase 2.2 Report" ;
    dct:format "PDF" ;
    dct:issued "2021-06-24T00:12:34.449122"^^xsd:dateTime ;
    dct:modified "2025-11-21T08:29:59.343407"^^xsd:dateTime ;
    dct:title "Phase 2.2 Report Appendices.pdf" ;
    dcat:accessURL <https://gdr.openei.org/files/775/NEGS_Phase2.2_Report_Appendices_070315.pdf> ;
    dcat:mediaType "application/pdf" .

<https://data.amerigeoss.org/dataset/4493b76b-8fd1-49e9-bdf6-b01edabb68ec/resource/afcb948e-da69-40aa-adba-72102713e1bf> a dcat:Distribution ;
    dct:description "Report detailing the findings of the Newberry EGS Demonstration Phase 2.2 which aimed to repair and re-stimulate Well 55-29." ;
    dct:format "PDF" ;
    dct:issued "2021-06-24T00:12:34.449115"^^xsd:dateTime ;
    dct:modified "2025-11-21T08:29:59.342975"^^xsd:dateTime ;
    dct:title "Phase 2.2 Report.pdf" ;
    dcat:accessURL <https://gdr.openei.org/files/775/NEGS_Phase2.2_Report_Final_070315.pdf> ;
    dcat:mediaType "application/pdf" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .