Rheological Properties of Xanthan Gum, Hydroxypropyl Starch, Cashew Gum and Their Binary Mixtures in Aqueous Solutions

Silva, Ítalo G. M. da; Lucas, Elizabete F.

doi:10.1002/masy.201800070

Cited by 17 publications

(12 citation statements)

References 51 publications

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“…The phenomenon of destroying the structure of xanthan gum solutions are best visible in the region of the lowest shear rates. In this flow area parameter, it takes a long time to establish a balance between the reconstruction and destruction of the fluid structure and therefore such large changes in apparent viscosity as a function of shear rate can be observed [12,13]. Results obtained from measurements on the rotational rheometer are in agreement with the results of the capillary-pipe viscometer.…”

Section: Resultssupporting

confidence: 73%

“…Flow index values estimated for 1% xanthan gum solution (Table 1) are consistent with the data obtained in work [13], as well as the values of the %H parameter. Investigated by authors of works [12,14] concentration effect xanthan gum on the consistency and flow index values has been demonstrated and confirmed by the results obtained from the capillary-pipe viscometer.…”

Section: Resultssupporting

confidence: 60%

“…Xanthan gum is an anionic polyelectrolyte, with a backbone chain consisting of (1-4)β-Dglucan cellulose [9,10]. Xanthan gum water dispersions are a viscous, stable solution, even at low concentrations [11][12][13]. Due to its rheological properties xanthan gum is commercialy used as a suitable stabiliser, thickener, and suspending agent in many foods [14].…”

Section: Introductionmentioning

confidence: 99%

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Pressure Drop Method as a Useful Tool for Detecting Rheological Properties of Non-Newtonian Fluids during Flow

et al. 2021

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The aim of the research was to develop a pressure drop measuring method dedicated to fluids under real flow through a pipeline. The measurement system is a set of appropriately configured flow meter and pressure sensors installed on the pipeline. The pressure drop values detected on the measuring section are sufficient to clearly determine the rheological properties of the fluid. The measuring system used for the tests consisted of a screw pump, two pressure sensors and an electromagnetic flow meter. The length of the measuring section was 4.12 m, and the internal diameter of the pipeline was 0.026 m. To calibrate of the measuring system a glycerol was used. As a model fluid, a 1% water solution of xanthan gum was used and was subjected to the flow at following shear rate conditions: 5, 11, 17, 23, 29, 35, 41, 47, 53, 59, 65 s−1. The obtained raw experimental data included the pressure drop values and flow rate and they created full information about the fluid behavior during flow. According to the momentum balance equation, the rheological parameters of Ostwald de Waele model were estimated. The estimation procedure was carried out with the help of the Marquardt-Levenberg minimisation method. The same solutions simultaneously were tested with the help of a rotational rheometer. The data obtained from the pressure drop method were consistent with the results obtained from the rotational rheometer. The use of the pressure drop allows to determine the rheological properties of the non-newtonian fluids under the process conditions directly in the pipeline. In addition, it is possible to perform full rheological characteristics based on one flow rate under laminar conditions.

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Section: Resultssupporting

confidence: 73%

Section: Resultssupporting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

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Pressure Drop Method as a Useful Tool for Detecting Rheological Properties of Non-Newtonian Fluids during Flow

et al. 2021

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“…The treatment agents used to prepare drilling fluids directly with seawater can be divided into two categories: organic treatment agents and inorganic treatment agents. Inorganic treatment agents are usually sodium carbonate, sodium hydroxide, potassium hydroxide, etc., used to adjust the pH of the drilling fluid; commonly used organic treatment agents are polyacrylamide (PAM), hydrolyzed sodium polyacrylonitrile (NaPAN), carboxymethyl cellulose sodium (CMC) [ 16 , 17 ], hydroxyethyl cellulose (HEC), polyanionic cellulose (PAC), xanthan gum biopolymer (XC) [ 18 , 19 , 20 ], sulfomethylated phenolic resin (SMP) and other salt-resistant water-soluble polymers [ 21 , 22 , 23 , 24 , 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Gel Stability of Calcium Bentonite Suspension in Brine and Its Application in Water-Based Drilling Fluids

Zhang

Chen

Zhou

et al. 2022

Gels

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With the development of the oil industry and the increasingly complex drilling environment, the performance of drilling fluids has to be constantly improved. In order to solve the problem of bentonite dispersion and hydration in a saline medium, a drilling fluid additive with good performance and acceptable cost was sought. The effects of several water-soluble polymers, such as cellulose polymers, synthetic polymers and natural polymers, on the rheology and gel suspension stability of calcium-based bentonite were compared in this study. Among the examined polymers, the xanthan gum biopolymer (XC) was the least negatively affected in the saline medium used. However, its high price limits its industrial application in oil and gas drilling fluids. In this study, a salt-tolerant polymer, modified plant gum (MVG), was prepared by a cross-linking modification of a natural plant gum, which is abundant and cheap. Then, a salt-tolerant polymer mixture called SNV was prepared, composed of the salt-resistant natural polymer MVG and the biopolymer XC. The salt tolerance and pulping ability of SNV and common water-soluble polymers were evaluated and compared. We then selected the most suitable Herschel–Bulkley model to fit the rheological curve of the SNV–bentonite aqueous suspension system. SNV improved the rheological properties of the calcium-based bentonite slurry and the dispersion stability of bentonite. In an SNV concentration of 0.35%, the apparent viscosity (AV) of the base slurry increased from 2 mPa·s to 32 mPa·s., and the low shear reading value at 3 rpm increased from 0 dia to 5 dia. This could greatly improve the viscosity and cutting carrying capacity of the bentonite drilling fluid. The bentonite drilling fluid prepared with SNV could be directly slurried with brine and even seawater; this means that when drilling in ocean, coastal saline water and high-salinity-surface saline water areas, the slurry preparation cost and preparation time can be conveniently reduced.

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“…WBFs are used whenever possible since they are less expensive and more environmentally friendly . Efforts have been undertaken to improve the swelling inhibition of reactive formations and the thermal stability of WBFs, making them comparable to SBFs, which are often used in more challenging applications …”

Section: Introductionmentioning

confidence: 99%

Correlation between clay type and performance of swelling inhibitors based on polyetherdiamine in aqueous fluids

Silva

Bertolino

Lucas

2019

J of Applied Polymer Sci

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In this work, the linear swelling of four samples of natural clays was evaluated, using poly(propylene glycol) bis(2‐aminopropyl ether) Mfalse¯n~230 g mol−1 (PEDA‐230) and Mfalse¯n~400 g mol−1 (PEDA‐400) as shale inhibitors for water‐based drilling fluids, in comparison to a commercial shale inhibitor. The swelling kinetics was described by a semiempirical equation. A correlation was found between the cation exchange capacity of the clays and the diffusion kinetic constant of the inhibitors. Increased molar mass of PEDA favored swelling inhibition. The swelling inhibition was also evaluated by rheology, and the results were in agreement with the linear swelling tests. Scanning electron microscopy demonstrated the occurrence of microfractures on the clay surface after water contact, as well as the adsorption of the different shale inhibitors on the clay surfaces after contact with the aqueous inhibited fluid. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47661.

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Rheological Properties of Xanthan Gum, Hydroxypropyl Starch, Cashew Gum and Their Binary Mixtures in Aqueous Solutions

Cited by 17 publications

References 51 publications

Pressure Drop Method as a Useful Tool for Detecting Rheological Properties of Non-Newtonian Fluids during Flow

Pressure Drop Method as a Useful Tool for Detecting Rheological Properties of Non-Newtonian Fluids during Flow

Gel Stability of Calcium Bentonite Suspension in Brine and Its Application in Water-Based Drilling Fluids

Correlation between clay type and performance of swelling inhibitors based on polyetherdiamine in aqueous fluids

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