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Relevant bibliographies by topics / Apparent viscosity (AV)

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Journal articles
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Conference papers

Academic literature on the topic 'Apparent viscosity (AV)'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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Journal articles on the topic "Apparent viscosity (AV)"

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Buriti, B. M. A. B., M. E. B. Araújo, P. M. Bastos, J. M. Cartaxo, G. A. Neves, and H. S. Ferreira. "Influence of MgO and CaCl2 on the rheological properties of bentonitic clays from the new Paraíba-Brazil deposits using experimental planning and statistical analysis." Cerâmica 66, no. 377 (2020): 74–80. http://dx.doi.org/10.1590/0366-69132020663772771.

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Abstract New deposits of bentonite clays have been discovered in the Brazilian State of Paraíba; the most recent was at the municipality of Olivedos. Recent studies have discovered the presence of high levels of non-clay minerals that can produce unsatisfactory results when attempting to use these clays in drilling fluids. In order to make them suitable for this purpose, the MgO and CaCl2 as chemical additives were used and their influences on the rheological properties of these clays were analyzed, using an experimental planning technique and statistical analysis. The samples were obtained us

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El-Guendouz, Soukaina, Smail Aazza, Susana Anahi Dandlen, et al. "Natural antioxidants in emulsions O/W." Zeitschrift für Naturforschung C 75, no. 9-10 (2020): 319–25. http://dx.doi.org/10.1515/znc-2020-0003.

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AbstractThis study compared the capacity of propolis extract (PE) and thyme waste extract (TWE) to prevent the oxidation of oil in water (O/W) emulsion, as well as their impact on emulsion apparent viscosity (AV) in the presence of wheat germ and almond oils as lipid phase. For this, central composite design (CCD) and principal component analysis (PCA) were performed. Oxidation process was monitored by evaluating the formation of primary and secondary lipid oxidation products, at the same time the AV behavior was determined evaluating consistency index and flow behavior index. The results reve

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Gowida, Ahmed, Salaheldin Elkatatny, Khaled Abdelgawad, and Rahul Gajbhiye. "Newly Developed Correlations to Predict the Rheological Parameters of High-Bentonite Drilling Fluid Using Neural Networks." Sensors 20, no. 10 (2020): 2787. http://dx.doi.org/10.3390/s20102787.

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High-bentonite mud (HBM) is a water-based drilling fluid characterized by its remarkable improvement in cutting removal and hole cleaning efficiency. Periodic monitoring of the rheological properties of HBM is mandatory for optimizing the drilling operation. The objective of this study is to develop new sets of correlations using artificial neural network (ANN) to predict the rheological parameters of HBM while drilling using the frequent measurements, every 15 to 20 min, of mud density (MD) and Marsh funnel viscosity (FV). The ANN models were developed using 200 field data points. The dataset

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de Oliveira, Ana Maria, Telma Teixeira Franco, and Enio Nazaré de Oliveira Junior. "Physicochemical Characterization of Thermally Treated Chitosans and Chitosans Obtained by Alkaline Deacetylation." International Journal of Polymer Science 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/853572.

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The thermal depolymerization of chitosan and alkaline deacetylation of chitin were characterized by measurement of viscosity, gel permeation chromatography (GPC), potentiometric titration (PT), and proton nuclear magnetic resonance spectroscopy (H1NMR). The depolymerization rates (DR) measured by kinematic viscosity (KV), apparent viscosity (AV), and GPC (Mw) until 4 h of treatment wereDRKV=21.9,DRAV=25.5, andDRMw=23.3% h-1and for 5 to 10 h of treatment they decreased slowly to produce ofDRKV=0.545,DRAV=0.248, andDRMw=1.11% h-1. The mole fraction of N-acetylglucosamine residuesFAof chitosans w

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Leite, Raquel Santos, Renalle Cristina Alves de Medeiros Nascimento, and Luciana Viana Amorim. "Study of the Interaction between Particles of Bentonite: Use of Dispersant Additives." Materials Science Forum 798-799 (June 2014): 659–64. http://dx.doi.org/10.4028/www.scientific.net/msf.798-799.659.

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This study has evaluated the influence of dispersant additives on the interaction of sodium bentonite clay in aqueous dispersion. Measurements of apparent viscosity (AV) and plastic viscosity (PV) for the dispersions, before and after additive, were done in a Fann 35A viscometer at ambient temperature and after thermal ageing (366K during 57600 seconds in Fann Roller Oven). The dispersions were prepared with clay contents of 0.04 and 0.08 kg/10-3m3 of water and the dispersants (sodium polyacrylate and sodium polyphosphate) with 0.02 and 0.04 kg/10-3m3 of water. Was observed that the dispersion

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Kang, Min Jeong, Seo-Jin Chung, and Sang Sook Kim. "The Effects of Transglutaminase and Refrigerated Storage on the Physicochemical Properties of Whole Wheat Dough and Noodles." Foods 10, no. 7 (2021): 1675. http://dx.doi.org/10.3390/foods10071675.

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This study investigated the effects of transglutaminase (TG) concentrations (0, 0.1% and 1%) on the physicochemical properties of whole wheat dough (WWD) and noodles (WWN) during refrigerated storage (0, 1, 2, and 3 days). The yield, ferulic acid (FA) content, molecular weight (Mw), and apparent viscosity (AV) of water extractable arabinoxylan (WEAX) from refrigerated WWDs were analysed. The WEAX yield and FA tended to increase with refrigerated storage, while the Mw decreased. WEAX FA of from WWD with TG tended to be smaller than the control during refrigeration. The AV for all WEAXs graduall

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Alsabaa, Ahmed, Hany Gamal, Salaheldin Elkatatny, and Abdulazeez Abdulraheem. "Real-Time Prediction of Rheological Properties of Invert Emulsion Mud Using Adaptive Neuro-Fuzzy Inference System." Sensors 20, no. 6 (2020): 1669. http://dx.doi.org/10.3390/s20061669.

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Tracking the rheological properties of the drilling fluid is a key factor for the success of the drilling operation. The main objective of this paper is to relate the most frequent mud measurements (every 15 to 20 min) as mud weight (MWT) and Marsh funnel viscosity (MFV) to the less frequent mud rheological measurements (twice a day) as plastic viscosity (PV), yield point (YP), behavior index (n), and apparent viscosity (AV) for fully automating the process of retrieving rheological properties. The adaptive neuro-fuzzy inference system (ANFIS) was used to develop new models to determine the mu

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Su, Junlin, Qi Chu, and Mao Ren. "Properties of high temperature resistance and salt tolerance drilling fluids incorporating acrylamide/2-acrylamido-2-methyl-1-propane sulfonic acid/N-vinylpyrrolidone/dimethyl diallyl ammonium chloride quadripolymer as fluid loss additives." Journal of Polymer Engineering 34, no. 2 (2014): 153–59. http://dx.doi.org/10.1515/polyeng-2013-0270.

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Abstract A quadripolymer of acrylamide (AM), 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS), N-vinylpyrrolidone (NVP) and dimethyl diallyl ammonium chloride (DMDAAC) was synthesized by solution free radical polymerization, and characterized using Fourier transform infrared (FTIR), gel permeation chromatography (GPC) and thermogravimetric analysis (TGA) methods. The rheological and filtrate properties of saturated brine-based fluid with AM/AMPS/NVP/DMDAAC quadripolymer were investigated before and after thermal aging tests. The apparent viscosity (AV), plastic viscosity (PV) and yield poi

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Bageri, Badr S., Mohammed Benaafi, Mohamed Mahmoud, Shirish Patil, Abdelmjeed Mohamed, and Salaheldin Elkatatny. "Effect of Arenite, Calcareous, Argillaceous, and Ferruginous Sandstone Cuttings on Filter Cake and Drilling Fluid Properties in Horizontal Wells." Geofluids 2019 (April 16, 2019): 1–10. http://dx.doi.org/10.1155/2019/1956715.

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Fine, small-size, drilled cuttings, if not properly separated using mud conditioning equipment at the surface, are circulated with the drilling fluid from the surface to the bottom hole. These drilled cuttings have a significant effect on the drilling fluid properties and filter cake structure. During drilling long lateral sandstone formations, different cuttings with varied properties will be generated due to sandstone formations being heterogeneous and having different mineralogical compositions. Thus, the impact of these cuttings on the drilling fluid and filter cake properties will be diff

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Amorim, L. V., C. M. Gomes, F. L. H. Silva, K. B. França, H. L. Lira, and H. C. Ferreira. "Use of Electrodialysis to Bentonitics Clays Dispersions." MRS Proceedings 752 (2002). http://dx.doi.org/10.1557/proc-752-aa8.18.

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ABSTRACTThe aim of this work is to study the uses of electrodialysis to bentonitics clays dispersions from Boa Vista City, PB, to improve the rheological properties. The dispersions were prepared with natural clay in the concentration of 4.86% w/w and submitted to electrodialysis process by using cationic polymeric membranes. Following, the dispersions were treated with Na2CO3. After cure, it was evaluated apparent (AV) and plastic (PV) viscosity and water loss (WL). The tests was setting up according to 22 experimental design, with three measures in the central point, to estimate the best app

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Dissertations / Theses on the topic "Apparent viscosity (AV)"

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Nagaraju, Yathiraj. "Contribution to the Understanding of the Rheological Behaviour of Recycled Concrete Aggregate Mixtures Made of Coarse and Fine Particles." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40684.

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The use of recycled concrete aggregates (RCA) has gained increased attention in the past few decades as an alternative to decrease the carbon footprint of concrete construction. Yet, most of the research performed so far demonstrates that RCA concrete displays inferior performance in the fresh and hardened states when compared to conventional concrete (CC). The latter is believed due to the fact that very often the different microstructure of RCA is not accounted for while the mix-proportioning of RCA concrete. Recently, a number of mix-design procedures accounting for RCA microstructure have

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Conference papers on the topic "Apparent viscosity (AV)"

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Li, Zhaochuan, Lihui Zheng, Panfeng Wei, Xiaojuan Dai, and Weian Huang. "Rheology of Brine-Based Fuzzy-Ball Drilling Fluids in Deepwater Drilling." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96094.

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Abstract In deepwater drilling, the rheology of traditional drilling fluid is uncontrollable since the fluid usually mixes with brine and encounters low temperature. A solution may be to use the newly designed brine-based fuzzy-ball drilling fluids (BFDFs) since these have a well-adapted rheology under high salinity and low temperature condition. This has the potential to make drilling safer and more efficient. In this experiment, the rheological properties of BFDFs under test conditions were characterized with a rheometer by varying salinity (2 to 20 mass%) and temperature (4 to 80 °C). The r

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