De-risking superhot EGS development through 3D play fairway analysis: Methodology development and application at Newberry Volcano, Oregon, USA

Taverna, Nicole; Pauling, Hannah; Trainor-Guitton, Whitney; Kolker, Amanda; Mibei, Geoffrey; Dobson, Patrick; Sonnenthal, Eric; Tu, Xiaolei; Schultz, Adam

doi:10.1016/j.geothermics.2023.102909

De-risking superhot EGS development through 3D play fairway analysis: Methodology development and application at Newberry Volcano, Oregon, USA

Journal Article · Mon Jan 15 23:00:00 EST 2024 · Geothermics

DOI:https://doi.org/10.1016/j.geothermics.2023.102909· OSTI ID:2298933

^[1]; Pauling, Hannah ^[1]; Trainor-Guitton, Whitney ^[1]; Kolker, Amanda ^[1]; Mibei, Geoffrey ^[1]; Dobson, Patrick ^[2]; Sonnenthal, Eric ^[2]; Tu, Xiaolei ^[3]; Schultz, Adam ^[3]

National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Oregon State Univ., Corvallis, OR (United States)

The DErisking Exploration for multiple geothermal Plays in magmatic ENvironments (DEEPEN) project aims to de-risk exploration of geothermal plays in magmatic systems, with a focus on superhot and supercritical geothermal systems. This article presents advancements in geoscientific assessment of superhot enhanced geothermal system (EGS) resources as part of the DEEPEN project, particularly in exploration and identification of these systems. While there exists a general consensus on key components of conventional hydrothermal systems, there has not been a prior consensus on such components for EGS, let alone superhot EGS. The DEEPEN project identified these key components for superhot EGS plays, and used them to modify the traditional geothermal play fairway analysis (PFA) approach to identify favorable areas in superhot EGS plays in 3D. This was done through modeling both favorability and uncertainty separately for each key component of a superhot EGS play, incorporating diverse 3D geoscientific datasets, including geologic features, models produced from direct observations, single inversions, and joint inversions. The PFA is applied to Newberry Volcano as a form of validation. Finally, the results appear to validate the methodology, aligning with expectations derived from conceptual modeling, and highlighting the area targeted for EGS stimulation well NWG 55-29 as favorable, and suggesting potential additional areas worthy of exploration at Newberry.

View Accepted Manuscript (DOE)

Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Geothermal Technologies Office

Grant/Contract Number:: AC36-08GO28308; AC02-05CH11231

OSTI ID:: 2298933

Alternate ID(s):: OSTI ID: 2282675

Report Number(s):: NREL/JA--6A20-88438; MainId:89217; UUID:a700b064-99c7-4233-94ea-1a4f2e43abe1; MainAdminId:71747

Journal Information:: Geothermics, Journal Name: Geothermics Vol. 118; ISSN 0375-6505

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited By (1)

DEEPEN: Final 3D PFA Favorability Models and 2D Favorability Maps at Newberry Volcano Taverna, Nicole; Pauling, Hannah; Kolker, Amanda DOE Geothermal Data Repository; National Renewable Energy Laboratory https://doi.org/10.15121/2283328	dataset	January 2024

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