Use of lumped parameter modeling for geothermal engineering

Conference · Tue Mar 01 04:00:00 EST 1983 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5695001

Castanier, L M; Brigham, W E

Theory and algorithm are presented for the implementation of a lumped parameter approach for geothermal reservoir simulation in the early stages of the development of a geothermal field. The model can be applied to all types of geothermal systems: all-liquid, all-steam, or two-phase. This paper focuses on examples of utilization of a simple lumped parameter model in three cases. The model is used to verify the validity of experimental results obtained from a bench-scale model and to calculate the heat transfer parameters of the experimental apparatus. A brief comparison was made on the East Mesa reservoir between lumped parameter results and the results obtained by Morris and Campbell using a three-dimensional finite differences simulator. Production and pressure histories of the Cerro Prieto geothermal field were assembled from field data. The model was then used to perform sensitivity studies on reservoir size, porosity, aquifer recharge rate and temperature of the recharge fluid for the Unit 1 and 2 production area. The problems encountered during the application of the lumped parameter technique to each of these examples are discussed; also, limitations of this approach are mentioned.

• Research Organization: Stanford University Stanford, CA
• OSTI ID: 5695001
• Report Number(s): CONF-830312-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE 11730
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150200* -- Geology & Hydrology of Geothermal Systems
150904 -- Geothermal Engineering-- Geothermal Reservoir & Well Performance
ALGORITHMS
CERRO PRIETO GEOTHERMAL FIELD
EAST MESA GEOTHERMAL FIELD
ENERGY TRANSFER
FINITE DIFFERENCE METHOD
FLUIDS
GEOTHERMAL FIELDS
GEOTHERMAL SYSTEMS
HEAT TRANSFER
ITERATIVE METHODS
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
NUMERICAL SOLUTION
PRESSURE DEPENDENCE
PRODUCTIVITY
RESERVOIR FLUIDS
RESERVOIR ROCK
SIMULATION
STRUCTURAL MODELS
TEMPERATURE DEPENDENCE
THREE-DIMENSIONAL CALCULATIONS