Results 21 to 30 of about 5,016 (245)
Fluid Mud and Nautical Bottom – Concept and Application in Itajaí Port Complex (Brazil) [PDF]
TransNav, 2019 Considering the demand for mooring larger ships at Brazilian port terminals, both private and public, in a scenario of growing exports, engineering interventions that can provide improvements in the vessel’s maximum allowed dimensions can represent ...
Lucas Martins Pion, Paolo Alfredini
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Integrated Environmental Assessment and Management, EarlyView., 2023 Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves +6 more
wiley +1 more source
Energy Reports, 2023 A multiphase flow model is an important foundation for well control simulation. In this paper, a multiphase variable mass flow model considering sudden density change was developed for variable gradient managed pressure drilling (MPD) and it was solved ...
Jiangshuai Wang +4 more
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Discharge of deeply rooted fluids from submarine mud volcanism in the Taiwan accretionary prism [PDF]
Scientific Reports, 2020 AbstractQualitative and quantitative assessments of fluid cycling are essential to address the role and transport of deeply sourced fluids in subduction systems. In this study, sediment cores distributed across a submarine mud volcano (SMV) offshore southwestern Taiwan were investigated to determine the characteristics of fluids generated through the ...
Nai-Chen Chen +10 more
openaire +2 more sources
Key technologies of 23 000 N·m large-diameter directional drilling rig
Meikuang Anquan, 2022 According to the actual demand of high-level large-diameter directional drilling rig for underground roof in coal mine, a complete set of directional drilling rig equipment with a primary hole diameter of more than 153 mm is developed.
CHEN Zeping
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Scientific Reports, 2021 Sediment fluxes at the estuary-sea interface strongly impact particle matter exchanges between marine and continental sources along the land-sea continuum.
Florent Grasso +2 more
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Journal of Applied Sciences and Environmental Management, 2015 Sublethal toxic effects of spent oil based drilling mud collected from an abandoned oil drilling site in Mpanak, Akwa Ibom State, Nigeria were assessed in the earthworm Aporrectodea longa.
AA Nuneku, SU Ayobahan
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The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2023 The washing head is the most important sub-assembly in a water well drilling installation, and ensures the operation of the installation on the principle of "hydraulic rotary drilling with direct circulation of drilling fluid", whereby, inside the ...
Sorin Alexandru FICĂ +2 more
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Sealing performance and mechanical response of mud pump piston
Petroleum, 2023 In order to explore the effect of piston cup structure on its sealing characteristics and mechanical properties, a numerical simulation model of the piston cup in the BW-160 mud pump was established.
Jie Zhang +3 more
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A reevaluation of the late quaternary sedimentation in todos os Santos Bay (BA), Brazil
Anais da Academia Brasileira de Ciências, 2000 Todos os Santos Bay is a large ( 1000 km²), structurally controlled tidal bay in northeast Brazil. Three main drainage basins debouch into the bay, providing a mean freshwater discharge of 200 m³/s (prior to 1985), or less than 1% of the spring tidal ...
GUILHERME C. LESSA +3 more
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