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Correlations between steam saturation, fluid composition and well decline in vapor-dominated reservoirs

Journal Article · · Geothermics; (United States)
A large body of field data from Larderello and other vapor-dominated geothermal reservoir shows striking temporal correlations between (1) decline of well flow rate, (2) gas/steam ratio, (3) chloride concentration, (4) degree of superheat and (5) vapor fraction. The latter is inferred from concentrations of non-condensible gases in samples of well fluid, using chemical phase equilibrium principles. Observed temporal changes in the vapor fraction can be interpreted in terms of a multiple source model.
Research Organization:
Istituto Internazionale per le Ricerche Geotermiche, CNR, Piazza Solferino 2, 56100 Pisa
OSTI ID:
6801347
Journal Information:
Geothermics; (United States), Journal Name: Geothermics; (United States) Vol. 15:2; ISSN GTMCA
Country of Publication:
United States
Language:
English