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What are the effects of the injection strategies on reduce vibration? 


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Injection strategies have been found to have significant effects on reducing vibration. In the study by Farahani and Rabiee, the use of jet injection in an isothermal channel was shown to attenuate cylinder vibrations with two degrees of freedom, achieving up to 99.9% reductions in vortex-induced vibration (VIV) . Similarly, Rivetti et al. found that air injection in a Kaplan turbine resulted in a decrease in vibration levels ranging from 57% to 84%, depending on the load condition . Furthermore, Kastner et al. demonstrated that injection rate shaping, specifically the use of very short dwell times between injections, effectively reduced combustion noise and emissions of hydrocarbons, carbon monoxide, and particulate matter in diesel engines . These findings highlight the potential of injection strategies in mitigating vibration and improving engine performance.

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Patent
Kim Jensen, Per Rønnedal, Michael Preem 
17 Jun 2005
5 Citations
The paper discusses the effects of controlling the fuel injection system on reducing vibration in large diesel engines.
The paper does not mention the effects of injection strategies on reducing vibration. The paper primarily focuses on the effects of injection strategies on emissions, fuel consumption, and combustion noise in diesel engines.
The effects of injection strategies on reducing vibration are not explicitly mentioned in the provided paper.
The effects of injection strategies on reducing vibration are discussed in the paper. The use of two jets in the double-jet mode can completely mitigate cylinder vibrations with two degrees of freedom.

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What are The most relevant advantages of the injection wells?3 answersInjection wells have several advantages in the oil and gas industry. One advantage is the increase in oil recovery of heterogeneous permeability, flooded oil reservoirs by regulating the injectability profile of the wells. Another advantage is the safe underground storage of CO2, where maintaining mechanical integrity of the well helps prevent leakage of CO2 from geologic carbon sequestration. Additionally, injection wells play a crucial role in enhanced oil recovery, wastewater disposal, and carbon dioxide sequestration in petroleum industries. They also contribute to improving the effective permeability of a reservoir, reducing water injection pressure, and increasing water injection and oil production. Furthermore, injection wells aid in dredging blocked seepage channels in strata between water injection and oil production wells, improving communication properties between wells, and increasing water driving force for low-permeability oilfields.
How does the Fluid injections affects Stress path?4 answersFluid injections can affect the stress path in reservoirs. When fluid is injected into a reservoir, it can stabilize the reservoir if the stress path is high enough. However, if the reservoir is significantly cooled as a result of injection, this stabilization is not seen. The presence of faults in the reservoir can also alter the stress path, especially in the vicinity of the fault. The stress path perturbation caused by faults can lead to a stress state that is closer to failure conditions than predicted by models that do not include faults. Pore fluid pressurization is less effective than mechanical changes in fault normal stress at initiating slip events, but fluid pressurization can enhance the total slip, slip velocity, and shear stress drop of events initiated by mechanical changes in normal stress. The permeability of the cap rock is also an important factor in stress changes, with different temporal behaviors observed depending on the cap rock permeability.
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