Numerical Investigation of Cavitating Flow over S-Blade in Acoustic Field

Perumal, Kumar; Anand, Rahul

doi:10.1007/978-981-16-0698-4_41

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…Special experimental studies were conducted at the Department of Oil and Gas Engineering and Drilling of Dnipro University of Technology. Their purpose was to clarify the patterns of influence of surface-active substances (surfactants) and polymer additives on hydraulic supports during the movement of liquid through a pipeline [18]. These studies were performed on a special stand (figure 4), where pressure drop ∆P was measured in a standard steel pipe with a diameter of 14 mm and a length of L = 4.5 m, through which the NB-11E pump pumped the studied liquids at different speeds (they were controlled with the help of a valve, marked as B in the diagram, figure 4).…”

Section: Resultsmentioning

confidence: 99%

Determining key features of the operation of percussion downhole drilling machines

Ihnatov,

Koroviaka,

Pavlychenko

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Dnipro University of Technology is a leading institution where an authoritative scientific school was formed to solve the fundamental issues of percussive-rotary drilling with the help of hydraulic hammers. This method makes it possible to intensify significantly the mining processes of rock mass breaking. In order to perform the specified function as fully as possible, hydraulic hammers are to work in a certain technological mode and have appropriate technical characteristics; the paper deals immediately with the analysis of those characteristics. The original designs of hydraulic hammers proposed by the authors are distinguished by a high degree of reliability of the interaction of individual parts and assemblies. Simulation of the operation of hydraulic hammers under appropriate mode-parametric support revealed a number of their significant advantages, i.e. in terms of creating effective conditions for rock mass disintegration. It has been proven convincingly that some features of the approaches to the implementation of a hydraulic well washing programme correspond to the stability of a high-quality process of the downhole work of percussion machines. As a result of the research, a composition of some rational formulations of flushing fluids, which contribute to a significant acceleration of the development of destructive processes, was clarified.

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Section: Resultsmentioning

confidence: 99%

Determining key features of the operation of percussion downhole drilling machines

Ihnatov,

Koroviaka,

Pavlychenko

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…величину гідравлічних опорів у кільцевому зазорі «керн -БТ». Безрозмірний коефіцієнт гідравлічного опору λ кп при промиванні ньютонівською рідиною можна розрахувати за формулою Блазіуса[37]:…”

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Study of hydraulic bases of technological fluids circulation

Pavlychenko,

Koroviaka,

Ihnatov

2023

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The scientific work considers the following thematic modules: the state and prospects of development of well drilling technology using various circulation schemes and formulations of cleaning agents; complex criteria determining the rational flow rate of cleaning agent; the essence of surface and volumetric physical and chemical phenomena in the course of circulation processes in wells; factors of influence of washing fluids on physical and mechanical properties of rocks and downhole fracture processes in general; the relationship between physical and geometric properties of rock formations; the interrelationship between the physical and mechanical properties of rock formations and downhole fracture processes. It is intended for specialists engaged in drilling operations, and will also be useful for students of technical universities, in particular, oil and gas and geological exploration profiles.

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Numerical Investigation of Cavitating Flow over S-Blade in Acoustic Field

Cited by 2 publications

References 12 publications

Determining key features of the operation of percussion downhole drilling machines

Determining key features of the operation of percussion downhole drilling machines

Study of hydraulic bases of technological fluids circulation

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