CO/sub 2/ trends in the depletion of the Larderello vapor-dominated reservoir

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6041737

Pruess, K; Celati, R; Calore, C; D'Amore, F

The present paper is concerned with the origin of CO/sub 2/ in the Larderello discharges from a reservoir engineering point of view. Specifically, we consider the question of fluid reserves (water and CO/sub 2/) at Larderello, and we carry out numerical simulations to obtain insight into temporal trends of CO/sub 2/ released from idealized models of vapor-dominated systems. Important constraints in the modeling arise from observed temperatures and enthalpies at Larderello. Discharge enthalpies are generally close to those of saturated steam near 250/sup 0/C (2.8 MJ/kg), with some degree of superheat which tends to increase with time. Flow rates of most wells decrease rapidly during the first few years of production and subsequently decline very slowly.

• Research Organization: Lawrence Berkeley Lab., CA (USA); Consiglio Nazionale delle Ricerche, Pisa (Italy). Ist. Internazionale per le Ricerche Geotermiche
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6041737
• Report Number(s): LBL-19092; CONF-850107-8; ON: DE85008680
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
DRAWDOWN
ENGINEERING
ENTHALPY
FLOW RATE
FLUID WITHDRAWAL
FLUIDS
FUMAROLIC FLUIDS
GEOTHERMAL FIELDS
GEOTHERMAL FLUIDS
Geothermal Legacy
LARDERELLO GEOTHERMAL FIELD
NATURAL STEAM
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRODUCTION
RESERVOIR ENGINEERING
STEAM
THERMODYNAMIC PROPERTIES