Borehole temperature survey analysis hot dry rock geothermal reservoir

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:7012550

Dennis, B R; Murphy, H D

The Los Alamos Scientific Laboratory (LASL) has been actively investigating the potential for extracting geothermal energy from hot dry rock. A man-made geothermal reservoir has been formed at the Fenton Hill Test Site in northern New Mexico. The 10-MW (thermal) prototype energy extraction circulation loop has been completed and has been continuously operating since January 28 of this year. The performance of the Phase I 1000-h circulation experiment would establish technological assessment of the particular hot dry rock geothermal reservoir. The major parameters of interest include equipment operations, geochemistry, water loss, and reservoir thermal drawdown. Temperature measurements were used extensively as one method to study the man-made geothermal reservoir. The temperature probe is one of the less complex wellbore survey tools that is readily fielded to allow on-line analysis of changing conditions in the hydraulic-fracture system. Several downhole temperature instruments have been designed and fabricated for use in the GT-2/EE-1 wellbores.

• Research Organization: Los Alamos Scientific Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7012550
• Report Number(s): LA-UR-78-905; CONF-780708-6
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150303* -- Geothermal Exploration & Exploration Technology-- Exploratory Drilling & Well Logging
150906 -- Geothermal Engineering-- Reservoir Stimulation & Extraction Technology
BOREHOLES
CAVITIES
COMMINUTION
FAILURES
FLUID FLOW
FRACTURED RESERVOIRS
FRACTURES
FRACTURING
GEOTHERMAL SYSTEMS
Geothermal Legacy
HEAT EXTRACTION
HOT-DRY-ROCK SYSTEMS
HYDRAULIC FRACTURING
HYDROGEN COMPOUNDS
OXYGEN COMPOUNDS
RESERVOIR ROCK
ROCKS
TEMPERATURE LOGGING
TEMPERATURE MEASUREMENT
WATER
WELL LOGGING