Evidence of pressure solution in geothermal reservoir sandstone

Conference · Mon Sep 01 04:00:00 EDT 1980 · Trans. - Geotherm. Resour. Counc.; (United States)

OSTI ID:6166618

Schatz, J F ^[1]; Wolgemuth, K M; Haar, S V

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1. TerraTek, Salt Lake City, UT

Scanning electron microscope examination has been done on pre-test and post-test specimens from experiments on core from the Cerro Prieto and East Mesa geothermal fields at simulated in-situ conditions of high temperature and pressure. The microscope observations are being done in conjunction with measurements of permeability and creep compaction to provide reservoir engineering data and develop constitutive models for subsidence prediction. Evidence for pressure solution is observable as dissolution at grain contacts and overgrowth of euhedral quartz on detrital grains.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6166618
• Report Number(s): CONF-800920-
• Conference Information: Journal Name: Trans. - Geotherm. Resour. Counc.; (United States) Journal Volume: 4
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
152003* -- Geothermal Data & Theory-- Rock-Water-Gas Interactions
CERRO PRIETO GEOTHERMAL FIELD
CHALCOGENIDES
CREEP
DRILL CORES
EAST MESA GEOTHERMAL FIELD
ELECTRON MICROSCOPY
GEOTHERMAL FIELDS
MECHANICAL PROPERTIES
MECHANICS
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
PERMEABILITY
QUARTZ
RESERVOIR ROCK
ROCK MECHANICS
ROCK-FLUID INTERACTIONS
ROCKS
SANDSTONES
SCANNING ELECTRON MICROSCOPY
SEDIMENTARY ROCKS
SILICON COMPOUNDS
SILICON OXIDES