Mid-term load forecasting - application in oil facilities
Oil production is a strategic business, important investments in infrastructure are performed in order to assure the reliability, quality and safety of the associated electric power system. This issue requires making an accurate forecast of power demand in the medium and long term, to avoid over- or under-investments that would produce economic effects. Conventional methods of forecasting demand for industrial sectors do not consider the variables involved in the process of oil extraction. For that reason, the present article, proposes a comprehensive method to forecast the electric power demand for an oil field in the medium-term. The key drivers of the demand, are parameters related to oil production process, which are directly obtained through field measurements, e.g. oil, gas, and water production volumes. A multiple linear regression method is applicated to forecast the future electricity demand, and it is validated by comparing the results of applying a conventional regression model. Satisfactory results are obtained.
Petroleum production systems
1. The Role of Petroleum Production Engineering. 2. Production from Undersaturated Oil Reservoirs. 3. Production from Two-Phase Reservoirs. 4. Production from Natural Gas Reservoirs. 5. The Near-Wellbore Condition and Damage Characterization Skin Effects. 6. Gravel Pack Completions. 7. Wellbore Flow Performance. 8. Well Deliverability. 9. Forecast of Well Production. 10. Wellhead and Surface Gathering Systems. 11. Modern Well Test Analysis. 12. Well Test Design and Data Acquisition. 13. Production Logging Measurements and Analysis. 14. Well Diagnosis with Production Logging. 15. Pressure Transient Testing with Measured Sandface Flow Rates. 16. Gas Well Testing. 17. Matrix Simulation-Chemistry of Acid Rock Reactions. 18. Sandstone Acidizing Design. 19. Carbonate Acidizing Design. 20. Hydraulic Fracturing for Well Simulation. 21. Design of Hydraulic Fracture Treatments. 22. The Performance of Hydraulically-Fractured and Long-Flowing Wells. 23. Gas Lift. 24. Pump-Assisted Lift. 25. Petroleum System Analysis. 26. Environmental Issues in Petroleum Production. Appendix.
Techno-economic analysis of solar thermal power plants using liquid sodium as heat transfer fluid
Abstract Solar thermal power plants with central receiver and thermal storage are expected to be one key technology in future electricity generation, because they are renewable and due to the thermal storage independent of the current solar radiation. State-of-the-art solar power plants often use molten nitrate salts as heat transfer fluid. The use of liquid sodium instead leads to lower electricity generation costs. Sodium has a high thermal conductivity and thus large heat transfer rates are possible. Hence, a smaller absorber surface is sufficient for the same thermal power. As a result, the sodium receiver achieves a higher efficiency at lower investment cost. Additionally, the aiming strategy, which reduces the peak heat flux on molten salt receivers isn’t necessary for sodium. Even at high heat flux densities, the absorber tubes will be cooled sufficiently due to the high heat transfer coefficients. Therefore, the sodium receiver in this analysis is designed for one single aim point, resulting in a heat flux density of q mean = 1.06 MW / m 2 and q peak = 2.99 MW / m 2 . The state-of-the-art system with molten salt considers q mean = 0.51 MW / m 2 and q peak = 1.0 MW / m 2 . The presented techno-economic analysis of two sodium based concepts compared to a reference system with molten salt results in up to 16% lower electricity generation costs.