Results 11 to 20 of about 69,654 (310)
Enhancing the performance of Xanthan gum in water-based mud systems using an environmentally friendly biopolymer [PDF]
, 2020 Xanthan gum is commonly used in drilling fluids to provide viscosity, solid suspension, and fluid-loss control. However, it is sensitive to high temperatures and not tolerant of field contaminants. This paper presents an experimental study on the effects
Akpan, EU, Enyi, GC, Nasr, GG
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Soluble pozzolanic materials from coal bottom ash as cement replacement material [PDF]
, 2021 Nowadays, intensive research in production of highly reactive pozzolanic materials from industrial waste to replace cement is crucial. This action expected to increase industrial waste recycling rate and at the same time reduce extraction of non ...
Abd Wahab, Azrina +3 more
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Flow-Induced Stresses and Displacements in Jointed Concrete Pipes Installed by Pipe Jacking Method [PDF]
, 2019 Transient flows result in unbalanced forces and high pressure in pipelines. Under these conditions, the combined effects of flow-induced forces along with sudden pipe displacements can create cracks in the pipeline, especially at the junctions.
Ahmad, Sajjad +3 more
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Petroleum, 2023 The paper presents the results of a systematic study of the influence of nano-additives of various concentrations, average sizes and composition on the temperature dependence of the viscosity and rheological behavior of water-based drilling fluids ...
A.V. Minakov +3 more
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Meitan kexue jishu, 2023 In the process of shale oil and gas drilling, the long-term erosion and weakening of drilling fluids promotes the extension and expansion of micro-fractures on mud shale, which leads to the reduction of rock mass strength and seriously threatens the ...
Diandong GENG +4 more
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Experimental investigation of new additive to optimize the properties of synthetic-based drilling fluid [PDF]
Journal of Mining and Metallurgy. Section A: Mining, 2016 This paper focus on the design, development and testing two type of synthetic based drilling fluid include of amine-treated Quebracho agent and Polymeric Fluid Loss agent.
Daya Ali Akbar +2 more
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Research of the pulsating flow of drilling fluid in the drill string
Technology audit and production reserves, 2022 The object of research is the pulsating flow of drilling fluid in the drill string. One of the most problematic places is pressure loss due to friction forces distributed along the length of the flow and concentrated in its nodes (threaded joints and pipe bends).
Viktor Svitlytskyi, Irina Boshkova
openaire +2 more sources
Rapid RAFT Polymerization of Acrylamide with High Conversion
Molecules, 2023 Rapid RAFT polymerization can significantly improve production efficiency of PAM with designed molecular structure. This study shows that ideal Reversible Addition–Fragmentation Chain Transfer (RAFT) polymerization of acrylamide is achieved in dimethyl ...
Xuejing Liu +4 more
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Factual Causation: The Missing Link in Hydraulic Fracture—Groundwater Contamination Litigation [PDF]
, 2012 A speech-based material that early can assess a child's hearing is needed to provide an indication of a hearing impaired child's language development.
King, Jeffrey C. +2 more
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Geofluids, 2019 Oil-based drilling fluids (OBDFs) have a strong wellbore stabilization effect, but little attention has been paid to the formation damage caused by oil-based drilling fluids based on traditional knowledge, which is a problem that must be solved prior to ...
Peng Xu, Mingbiao Xu
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