Study of geothermal power generation from a very deep oil well with a wellbore heat exchanger
| Autor: | Claudio Alimonti, Elena Soldo |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Petroleum engineering
Renewable Energy Sustainability and the Environment business.industry 020209 energy Geothermal energy Thermal power station 02 engineering and technology renewable energy law.invention Volumetric flow rate geothermal energy oil wells wellbore heat exchanger renewable energy sustainability and the environment Oil well law Heat exchanger 0202 electrical engineering electronic engineering information engineering Environmental science Energy transformation Working fluid Electric power sustainability and the environment business |
| Zdroj: | Renewable Energy. 86:292-301 |
| ISSN: | 0960-1481 |
| DOI: | 10.1016/j.renene.2015.08.031 |
| Popis: | The present study analyses the possibility to implement a WellBore Heat eXchanger (WBHX) on one of the largest European oil fields: the Villafortuna Trecate oilfield. The research is focused on the optimization of the WBHX to maximize the extracted heat. Hence, a numerical model of a WBHX has been setup. The simulations have considered the use of two different heat transfer fluids: water and diathermic oil. It was also tried different internal diameters of the pipes in order to optimize the geometrical configuration for the specific case study. To assess the energy conversion by an ORC plant a model has been build. The goal was to evaluate the possible working fluid as well as validate the MIT correlation. The R-C318 has been selected and a good agreement between MIT correlation and the ORC plant model has been highlighted. The simulations demonstrated the importance to consider the change of fluid properties inside the exchanger. With a water flowrate of 15 m3/h the optimum condition is obtained; under such condition, the thermal power is 1.5 MW and the net electrical power is 134 kW for single well. The results lead also to conclude that the water is the best heat transfer fluid. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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