Hydraulic Fracturing Characteristics and Stimulation Optimization of Tuffaceous Sandstone Reservoir in San Jorge Basin, Argentina
Li Xingchuan,
Li Zhaohong,
Zhu Shanqing
Issue:
Volume 10, Issue 1, January 2021
Pages:
1-9
Received:
16 February 2021
Accepted:
1 March 2021
Published:
4 March 2021
Abstract: According to the post fracturing production performance characteristics of the operation wells in Sinopec Argentina work area of San Jorge basin, the more intensive the reconstruction is, the worse the effect is. By comparing the characteristics of typical wells, combining with the distribution characteristics of reservoir, the influence of tuffaceous matter, the state of in-situ stress, and the propagation law of hydraulic fractures, the main factors causing the abnormal performance are revealed. The characteristic parameters of typical wells in the work area are compared, and the main control factors affecting the key parameters of production are discussed. From the fracture scale, working fluid system, pumping parameters and other aspects, the targeted measures are optimized. The practice shows that the success rate of low intensity transformation is higher, which is nearly 10% higher than that of medium intensity transformation; within one year after fracturing, the average daily oil production of single well is 3.0 m3 higher, and the efficiency is remarkable. According to the characteristics of the work area, the small-scale and low-intensity sand adding transformation scheme is adopted, which improves the success rate and efficiency of hydraulic fracturing operation, and provides a new technical idea for tapping the potential of the next process.
Abstract: According to the post fracturing production performance characteristics of the operation wells in Sinopec Argentina work area of San Jorge basin, the more intensive the reconstruction is, the worse the effect is. By comparing the characteristics of typical wells, combining with the distribution characteristics of reservoir, the influence of tufface...
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Improving the Voltage Quality and Power Transfer Capability of Transmission System Using FACTS Controller
Demsew Mitiku Teferra,
Livingstone Ngoo
Issue:
Volume 10, Issue 1, January 2021
Pages:
10-19
Received:
16 November 2020
Accepted:
12 March 2021
Published:
22 March 2021
Abstract: One of the main challenges of the future in the utility sector is constructing the new transmission line corridor. This is due to the fact that land compensation cost associated with the expansion of a new transmission line corridor becomes very expensive and also power transmission efficency is very low. In addition to that, the high carbon emission, which is the major challenge of the world right now, related to the additional conventional energy-based power generation to meet dramatically increased electricity demand and the volatility nature of the existing transmission networks are some of the main drivers to implement FACTS controller in transmission network for flexible, reliable, efficient and stable power transmission. This study accounts modeling of static VAR compensator (SVC), static synchronous compensator (STATCOM), unified power flow controller (UPFC) in a 5-bus transmission system to enhance transmission efficency and the quality of power supplied to the costomer. FACTS devices for improving the transmission line capacity and voltage profile of the power system. The three FACTS controllers are modeled for the standard 5 bus IEEE system based on Newton Raphson algorithm using NEPLAN simulation software in order to investigate their impacts on transmission line capacity and voltage profile improvement. Based on the simulation result, the voltage profile as well as the capacity of the IEEE 5 bus system is improved well by using each of the FACTS controller. From the simulation result we can conclude that the STATCOM and SVC are very efficent in voltge profile improvement whereas the UPFC is well performed for the power transmission capability of the transmission network.
Abstract: One of the main challenges of the future in the utility sector is constructing the new transmission line corridor. This is due to the fact that land compensation cost associated with the expansion of a new transmission line corridor becomes very expensive and also power transmission efficency is very low. In addition to that, the high carbon emissi...
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Comparison of the Energy Recovery Potential Using Life Cycle Assessment of Municipal Solid Waste of Abidjan (Côte d’Ivoire)
Adjoumani Rodrigue Kouakou,
Ehouman Ahissan Donatien,
Kouadio Marc Cyril
Issue:
Volume 10, Issue 1, January 2021
Pages:
20-29
Received:
23 February 2021
Accepted:
11 March 2021
Published:
26 March 2021
Abstract: The development of societies and industrial progress cannot be achieved without the use of electricity. The growing demand for energy and the degradation of the environment by current sources force us to look for other methods to produce it. The production of renewable energy from landfill waste reduces the environmental problems caused by the combustion of coal, oil and natural gas. Therefore, in this work, life cycle assement is used to compare the different energy recovery options of four solid waste management systems with each other and to assess the corresponding carbon credit. The four management systems are: landfilling (scenario S0), landfilling with energy recovery (scenario S1), incineration combined with anaerobic digestion with energy recovery in both cases (scenario S2) and incineration with energy recovery (scenario S3). The assessment showed that scenario S2 is the best waste management option for energy production with an energy potential of 890.9 GWh/year, which corresponds to 11% of the Côte d’Ivoire's net electricity production in 2015. In addition, this scenario has led to a better reduction in methane emissions with a carbon credit of USD 12168200 for the total amount of waste managed in one year. However, scenario S1 is the wrong option in terms of energy production with an energy potential of 232.2 GWh/year corresponding to 3% of the Ivory Coast's net electricity production in 2015. Regarding the potential reductions in CO2equivalent emissions, those of scenario S1 are the lowest with a carbon credit of US$ 12,025,343. From the point of view of the production of clean and green energy, the voice to be followed for an optimal MSW management technique in Abidjan is the anaerobic digestion of the organic fraction, the incineration of the fuel fraction, followed by the landfilling of the residues.
Abstract: The development of societies and industrial progress cannot be achieved without the use of electricity. The growing demand for energy and the degradation of the environment by current sources force us to look for other methods to produce it. The production of renewable energy from landfill waste reduces the environmental problems caused by the comb...
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