Results of investigations at the Ahuachapan geothermal field, El Salvador

Technical Report · Sun Apr 01 00:00:00 EST 1990

DOI:https://doi.org/10.2172/6994054· OSTI ID:6994054

Dennis, B; Goff, F; Van Eeckhout, E; Hanold, B ^[1]

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1. comps.

Well logging operations were performed in eight of the geothermal wells at Ahuachapan. High-temperature downhole instruments, including a temperature/rabbit, caliper, fluid velocity spinner/temperature/pressure (STP), and fluid sampler, were deployed in each well. The caliper tool was used primarily to determine if chemical deposits were present in well casings or liners and to investigate a suspected break in the casing in one well. STP logs were obtained from six of the eight wells at various flow rates ranging from 30 to 80 kg/s. A static STP log was also run with the wells shut-in to provide data to be used in the thermodynamic analysis of several production wells. The geochemical data obtained show a system configuration like that proposed by C. Laky and associates in 1989. Our data indicate recharge to the system from the volcanic highlands south of the field. Additionally, our data indicate encroachment of dilute fluids into deeper production zones because of overproduction. 17 refs., 50 figs., 10 tabs.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: AID
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6994054
• Report Number(s): LA-11779-MS; ON: DE90012424
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
EL SALVADOR
NATIONAL ENERGY PLAN
GEOTHERMAL ENERGY
FEASIBILITY STUDIES
GEOTHERMAL WELLS
WELL LOGGING
AHUACHAPAN GEOTHERMAL FIELD
DATA ACQUISITION
GEOLOGY
HOT-DRY-ROCK SYSTEMS
HYDROLOGY
MEASURING METHODS
PERFORMANCE
PRESSURE MEASUREMENT
PRODUCTION
RESOURCE DEVELOPMENT
SAMPLING
SITE CHARACTERIZATION
SURVEYS
TEMPERATURE MEASUREMENT
THERMODYNAMICS
VELOCITY
WATER CHEMISTRY
CENTRAL AMERICA
CHEMISTRY
DEVELOPING COUNTRIES
ENERGY
ENERGY POLICY
ENERGY SOURCES
ENERGY SYSTEMS
GEOTHERMAL FIELDS
GEOTHERMAL SYSTEMS
GOVERNMENT POLICIES
LATIN AMERICA
RENEWABLE ENERGY SOURCES
WELLS
Geothermal Legacy
150303* - Geothermal Exploration & Exploration Technology- Exploratory Drilling & Well Logging
152001 - Geothermal Data & Theory- Properties of Aqueous Solutions