Performance Prediction of Two-Phase Geothermal Reservoir using Lumped Parameter Model

5th ITB International Geothermal Workshop

Nurlaela, F.^1 ; Sutopo^1

Master Program of Geothermal Technology, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganeca 10, Bandung

40132, Indonesia^1

关键词: Fluid-saturation changes;    Lumped parameter method;    Lumped parameter modeling;    Lumped parameter models;    Mass balance equations;    Performance of low temperatures;    Performance prediction;    Reservoir simulation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/42/1/012030/pdf
DOI  :  10.1088/1755-1315/42/1/012030

来源: IOP

【 摘 要 】

Many studies have been conducted to simulate performance of low-temperature geothermal reservoirs using lumped parameter method. Limited work had been done on applying non-isothermal lumped parameter models to higher temperature geothermal reservoirs. In this study, the lumped parameter method was applied to high-temperature two phase geothermal reservoirs. The model couples both energy and mass balance equations thus can predict temperature, pressure and fluid saturation changes in the reservoir as a result of production, reinjection of water, and/or natural recharge. This method was validated using reservoir simulation results of TOUGH2. As the results, the two phase lumped parameter model simulation without recharge shows good matching, however reservoir model with recharge condition show quite good conformity.