Articles with "bottom water" as a keyword



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Response of benthic nitrogen cycling to estuarine hypoxia

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Published in 2020 at "Limnology and Oceanography"

DOI: 10.1002/lno.11630

Abstract: The effects of bottom water oxygen concentration on sediment oxygen uptake, oxygen penetration depth, nitrate and ammonium fluxes, anammox, denitrification, dissimilatory nitrate reduction to ammonium, nitrification, and mineralization were investigated off the Changjiang estuary and… read more here.

Keywords: bottom water; hypoxia; nitrogen; oxygen ... See more keywords
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Microbial communities involved in the methane cycle in the near-bottom water layer and sediments of the meromictic subarctic Lake Svetloe

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Published in 2019 at "Antonie van Leeuwenhoek"

DOI: 10.1007/s10482-019-01308-1

Abstract: Although arctic and subarctic lakes are important sources of methane, the emission of which will increase due to the melting of permafrost, the processes related to the methane cycle in such environments are far from… read more here.

Keywords: methane cycle; water; water layer; bottom water ... See more keywords
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Visualized Experimental Study of Nitrogen Injection Supression of Bottom Water Coning

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Published in 2020 at "Chemistry and Technology of Fuels and Oils"

DOI: 10.1007/s10553-020-01156-0

Abstract: The reservoirs of volcanic rocks in the Junggar Basin of Xinjiang in China are abundant in reserves with potential for exploration and development. They have the characteristics of high heterogeneity and fracture development. The occurrence… read more here.

Keywords: nitrogen injection; water; water coning; injection ... See more keywords
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A new mathematical model for horizontal wells with variable density perforation completion in bottom water reservoirs

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Published in 2017 at "Petroleum Science"

DOI: 10.1007/s12182-017-0159-0

Abstract: Horizontal wells are commonly used in bottom water reservoirs, which can increase contact area between wellbores and reservoirs. There are many completion methods used to control cresting, among which variable density perforation is an effective… read more here.

Keywords: water reservoirs; horizontal wells; water; perforation ... See more keywords
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I/Ca in epifaunal benthic foraminifera: A semi-quantitative proxy for bottom water oxygen in a multi-proxy compilation for glacial ocean deoxygenation

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Published in 2020 at "Earth and Planetary Science Letters"

DOI: 10.1016/j.epsl.2019.116055

Abstract: Abstract The decline in dissolved oxygen in global oceans (ocean deoxygenation) is a potential consequence of global warming which may have important impacts on ocean biogeochemistry and marine ecosystems. Current climate models do not agree… read more here.

Keywords: oxygen; water oxygen; ocean deoxygenation; bottom water ... See more keywords
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Labrador Sea bottom water provenance and REE exchange during the past 35,000 years

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Published in 2020 at "Earth and Planetary Science Letters"

DOI: 10.1016/j.epsl.2020.116299

Abstract: Abstract Deep waters of the Labrador Sea (LS) are important contributors to the Atlantic Meridional Overturning Circulation, but their water mass structure has been highly variable and sensitive to climatic changes on different time scales.… read more here.

Keywords: ree exchange; water; labrador sea; water provenance ... See more keywords
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Water mass analysis and contribution estimation using heavy rare earth elements: Significance of Kuroshio intermediate water to Central East China Sea shelf water

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Published in 2018 at "Marine Chemistry"

DOI: 10.1016/j.marchem.2018.07.011

Abstract: Abstract The East China Sea (ECS) has complicated water masses, in which it is difficult to clarify the various sources solely by estimating the potential temperature (PT) and salinity. High-nutrient bottom water was identified on… read more here.

Keywords: china sea; water; shelf; heavy rare ... See more keywords
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Eubuliminella tenuata as a new proxy for quantifying past bottom water oxygenation

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Published in 2021 at "Marine Micropaleontology"

DOI: 10.1016/j.marmicro.2021.102016

Abstract: Abstract In response to modern global warming and climate emergency, large oxygen-depleted oceanic areas, known as Oxygen Minimum Zones (OMZs) have been expanding for the past decades, with negative ecological and economic consequences on food… read more here.

Keywords: past bottom; oxygenation; eubuliminella tenuata; water oxygenation ... See more keywords
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Effect of vug filling on oil-displacement efficiency in carbonate fractured-vuggy reservoir by natural bottom-water drive: A conceptual model experiment

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Published in 2019 at "Journal of Petroleum Science and Engineering"

DOI: 10.1016/j.petrol.2018.12.014

Abstract: Abstract Universal existence of the filled vug or cave in carbonate reservoir complicates the fluid flow as the coexistence of free flow and porous flow. The fills in vug increase the flow resistance and affect… read more here.

Keywords: fractured vuggy; natural bottom; water; bottom water ... See more keywords
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Experimental Study on Stimulation of Horizontal Wells Filled with Film-Coated Gravel in Deep-Sea Bottom-Water Gas Reservoirs

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Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.2c00201

Abstract: Large gas reservoirs such as Yacheng and Lingshen have been discovered in the exploration of deep-sea gas reservoirs in the South China Sea in recent years. However, the existence of bottom-water and sufficient water energy… read more here.

Keywords: coated gravel; bottom water; water; water gas ... See more keywords
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Macro- and Microanalysis on Noncondensable Gas Antiwater Invasion in a Bottom Water Reservoir with a Rupturable Interlayer

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Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.2c03178

Abstract: Developing a bottom-water reservoir with rupturable interlayers is a significant challenge. This paper used a 2D visualization model to study the seepage characteristics of gas–water in two phases during noncondensable gas antiwater invasion. On this… read more here.

Keywords: noncondensable gas; water; antiwater invasion; bottom water ... See more keywords