Gas reaction in the Cerro Prieto reservoir

Conference · Tue Aug 10 04:00:00 EDT 1982

OSTI ID:7369510

Nehring, N L; Valette-Silver, J N

Gases in an undisturbed geothermal reservoir should be in equilibrium with the surrounding rock and water. Production of fluid at rapid rates may cause physical changes in the reservoir that are reflected as changes in gas composition. At Cerro Prieto production has lowered the reservoir pressure enough in places to induce boiling in the aquifer, leading to high enthalpy, low production and eventual drawndown of cold water into the reservoir. These changes are reflected in gas compositions. Differences, in gas composition between well and surface samples reflect changing equilibrium in temperature-dependent chemical reactions and a mixture of gases dissolved in groundwater.

• Research Organization: Geological Survey, Menlo Park, CA
• OSTI ID: 7369510
• Report Number(s): CONF-8208109-Vol.2-6; ON: DE87003674
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150302* -- Geothermal Exploration & Exploration Technology-- Geochemical Techniques & Surveys
150904 -- Geothermal Engineering-- Geothermal Reservoir & Well Performance
CERRO PRIETO GEOTHERMAL FIELD
CHEMICAL ANALYSIS
CHEMISTRY
EQUILIBRIUM
FLUIDS
GEOCHEMISTRY
GEOTHERMAL FIELDS
GEOTHERMAL FLUIDS
GEOTHERMAL WELLS
Geothermal Legacy
HYDROCARBONS
ORGANIC COMPOUNDS
ROCK-FLUID INTERACTIONS
WELLS