Results 1 to 10 of about 3,932,847 (285)
Development and Space Experiment Verification of Annular Liquid Flow Payload for China Space Station
SymmetryThe annular flow payload is among the first batch of space science experimental projects carried out on the Fluid Physics Rack of the China Space Station. This paper provides a detailed introduction to the development of the payload, ground validation, and in orbit experiments. The payload, sized 320 mm × 200 mm × 220 mm, includes an annular flow model
Jia Wang, Li Duan, Qi KANG
exaly +4 more sources
Overdetermined problems in annular domains with a spherical-boundary component in space forms
Journal of Inequalities and Applications, 2023 We obtain a Serrin-type symmetry of the solutions to various overdetermined boundary value problems in annular domains with a spherical-boundary component in space forms by using the maximum principle for suitable subharmonic functions and integral ...
Jihye Lee, Keomkyo Seo
doaj +2 more sources
Energies, 2023 Gasoline–air mixture explosions mostly occur in buried tank rooms, which are annular cylindrical confined spaces with circular arches. In this paper, explosion experiments at different gasoline–air mixture volume fractions are carried out in an annular ...
Xinsheng Jiang +7 more
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Increasing the Efficiency of Sealing the Borehole in Terms of Spacer Pumping Time
Energies, 2021 The tightness of a borehole is essential for its long-term durability. For this purpose, the column of the pipe is sealed with cement slurry. After contacting the slurry, mud in the borehole is removed. However, the slurry does not effectively remove the
Marcin Kremieniewski +2 more
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An analysis of casing pressure causes in oil wells at the fields of Tyumen region
Известия высших учебных заведений: Нефть и газ, 2022 The article deals with the issues of qualitative isolation of reservoirs, which are saturated with water or hydrocarbons. The conducted scientific research substantiated the method of ranking wells with casing pressure, according to which wells are ...
D. M. Mukhametshin +3 more
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Известия Томского политехнического университета: Инжиниринг георесурсов, 2023 Link for citation: Totanov A.S., Molchanova V.A., Urazakov K.R. Study of the performance of the dynamic level stabilization system operation in the wellbore equipped with an electrical submersible pump unit. Bulletin of the Tomsk Polytechnic University.
Alexander S. Totanov +2 more
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Numerical study on conjugate convective thermal transport in an annular porous geometry
Kuwait Journal of Science, 2022 Buoyancy-driven convection in an annular space between two upright concentric cylinders having finite thickness of inner/outer cylinder is an essential physical structure exposing several practical applications.
Kiran S +2 more
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Effect of Cleaning the Annular Space on the Adhesion of the Cement Sheath to the Rock
Energies, 2021 Drilling boreholes in gas zones and in zones with the possibility of migration or gas exhalation requires a high index of well tightness. An important parameter determining the effectiveness of sealing the annular space is the adhesion of the cement ...
Marcin Kremieniewski +4 more
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Grouting Reconstruction Design of Strong Water-rich Coal Seam in Balasu Coal Mine
Meikuang Anquan, 2020 The 2# coal in Yuheng northern district is aquifer, which has the characteristics of high water pressure and strong water content. It brings serious safety problems to shaft construction in many coal mines in Yuheng northern district.
LIU Yang, WANG Chungang, LIANG Xiangyang, FANG Gang
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The Rod String Loads Variation during Short-Term Annular Gas Extraction
Energies, 2022 This paper highlights field studies to determine the nature of variations in the load on the sucker-rod string during short-term gas extraction from the wellbore annulus.
Alexander Vladimirovich Artyukhov +4 more
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