Rock-water interactions in the Fenton Hill, New Mexico, hot dry rock geothermal systems 1; Fluid mixing and chemical geothermometry

Journal Article · Sun Jan 01 04:00:00 EST 1989 · Geothermics (International Journal of Geothermal Research and its Applications); (UK)

DOI:https://doi.org/10.1016/0375-6505(89)90098-9· OSTI ID:5877209

Grigsby, C O; Tester, J W ^[1]; Trujillo, Jr, P E; Counce, D A ^[2]

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1. Dept. of Chemical Engineering, Massachusetts Inst. of Technology, Cambridge, MA (US)
2. Earth and Space Sciences Div., Los Alamos National Lab., Los Alamos, NM (US)

The chemistry of fluids circulated through an artificially-stimulated, hot dry rock (HDR) fractured geothermal reservoir system in granitic rock is described in terms of mixing phenomena, geothermometry, and approach to saturation with reservoir rock minerals. Based on the similar dynamic behavior of Na{sup +}, K{sup +}, Li{sup +}, Cl{sup {minus}}, and B species and other isotopic evidence, the presence of a concentrated {ital in-situ} pore fluid was identified. Mixing and displacement of this {ital in situ} fluid with meteoric make-up water is responsible for the observed behavior of the major dissolved species in the circulated fluid of this HDR system.

• OSTI ID: 5877209
• Journal Information: Geothermics (International Journal of Geothermal Research and its Applications); (UK), Journal Name: Geothermics (International Journal of Geothermal Research and its Applications); (UK) Vol. 18:5/6; ISSN GTMCA; ISSN 0375-6505
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
152002 -- Geothermal Data & Theory-- Properties of Minerals & Rocks
152003 -- Geothermal Data & Theory-- Rock-Water-Gas Interactions
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ALKALI METALS
BORON
CHEMISTRY
CHLORINE
COMMINUTION
ELEMENTS
ENERGY SYSTEMS
FEDERAL REGION VI
FRACTURING
GEOCHEMISTRY
GEOTHERMAL SYSTEMS
GEOTHERMOMETRY
GRANITES
HALOGENS
HOT-DRY-ROCK SYSTEMS
HYDRAULIC FRACTURING
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
LITHIUM
METALS
NEW MEXICO
NONMETALS
NORTH AMERICA
OXYGEN COMPOUNDS
PLUTONIC ROCKS
POTASSIUM
ROCK-FLUID INTERACTIONS
ROCKS
SEMIMETALS
SODIUM
USA
WATER