Recycling treatment of waste oil-based drilling mud in gas fields [PDF]
Scientific ReportsThis study aims to develop an efficient and environmentally friendly approach for the resource recovery and harmless treatment of waste oil-based drilling mud (WOM).
Hailong Cao, Boyang Hu
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Mathematical model of velocity and distribution law in gas lift reverse circulation well washing flow field for drilling shaft sinking [PDF]
Scientific ReportsTo reveal the velocity distribution law of a gas lift reverse circulation well washing flow field in drilling shaft sinking, a velocity mathematical model of well washing flow field is established.
Longhui Guo +5 more
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CFD–DEM method is used to study the multi-phase coupling slag discharge flow field of gas-lift reverse circulation in drilling shaft sinking [PDF]
Scientific ReportsTo elucidate the distribution law of the multiphase coupling slag discharge flow field in gas-lift reverse circulation during drilling shaft sinking, a numerical analysis model of gas–liquid–solid multiphase coupling slag discharge was established by CFD–
Longhui Guo +5 more
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Influence of solids concentration on the sedimentation rate of the mud in the aggregate industry
Minería y Geología, 2016 The objective of this investigation is to determine, for the mud resulting from the wash process in the Jobo community arid industry in Sagua de Tánamo, the impact of solids percent on the theoretical sedimentation velocity that is predicted by the ...
Benigno Leyva-de la Cruz +4 more
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Recoil Control of Deepwater-Drilling Riser with Optimal Guaranteed Cost H∞ Control
Applied Sciences, 2022 In deepwater-drilling engineering, it is necessary to disconnect the bottom equipment of the lower marine-riser package from the blowout preventer when encountering multi-hazard environmental factors.
Yue-Ting Sun +4 more
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Potential of Computer-Aided Engineering in the Design of Ground-Improvement Technologies
Applied Sciences, 2022 The progress status of jet-grouting construction during the construction phase is difficult to verify and even after the completion of construction, it can be verified only by empirical methods.
Sudip Shakya +2 more
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Research Progress on Recoil Analysis and Control Technology of Deepwater Drilling Risers
Energies, 2022 The deepwater drilling riser is a very important and vulnerable connection between an offshore platform and subsea wellhead. Under some certain complex marine environment and operating conditions, the offshore platform may drift beyond the safe ...
Yanbin Wang +3 more
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Geosciences, 2023 The spatial variations in Quaternary sediments on the inner continental shelf are produced by the progression of depositional environments during the latest sea-level rise, and this sedimentary architecture plays a fundamental role in controlling ...
Scott M. White +3 more
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Variable-Density Flow and Solute Transport in Stratified Salt Marshes
Frontiers in Marine Science, 2022 Subsurface hydrodynamics underpin the eco-functions of salt marshes. Many studies have investigated these processes under various conditions. However, the impact of soil stratification (a low-permeability mud layer overlying a high-permeability sand ...
Xiaojing Wu +3 more
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Directional drilling technology with mud pulse wireless MWD in underground coal mine
Meikuang Anquan, 2021 The directional drilling technology with mud pulse wireless MWD in coal mine was presented. We introduce the principle of the technology and analyze three key technologies: the wireless MWD with mud pulse, the compound directional drilling and the ...
LI Quanxin, CHU Zhiwei, XU Chao, FANG Jun
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