Analysis of Viscosity Change and Oil Leakage Characteristics According to CaCO3 Particle Size and Anti-Sedimentation Agent Content on Bituminous Emulsion Mastic

Choi, Soo Hyuk; Kim, Dong-Bum; Park, Wan-Goo; Park, Jin-Sang; Oh, Sung-Tag

doi:10.3390/app12020690

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…This was because the van der Waals force between the organic bentonite layers was weak. Alcohol molecules could enter the structure gap of the organic bentonite lamellae, resulting in an antisedimentation effect by increasing the volume of the organic bentonite layers and enhancing the viscosity of the friction reducer suspension . Fumed silica has features of small particle size and large specific surface area.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Performance Evaluation of a Variable Viscosity Friction Reducer Suspension with High Salt Tolerance and Low Damage

Shi

Sun

et al. 2022

Energy Fuels

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In view of challenges such as the long dissolution time of powder friction reducers in high-salinity water, poor environmental friendliness of water-in-oil (W/O) emulsion friction reducers, and the poor proppant-carrying capacity of conventional slickwater, a novel variable viscosity friction reducer suspension (EACM) with high salt tolerance, low damage, and strong proppant-carrying capacity was prepared by dispersing salt-tolerant polymer powder in alcohol solvents. The solubility, drag reduction ability, viscoelasticity, proppant-carrying capacity, temperature and shear resistance, and gel breaking ability of EACM were investigated. The results showed that the best solvent for the friction reducer suspension was polyethylene glycol 400, in which EACM exhibited a rapid dissolution rate with a thickening rate of 89.5% within 2 min. Due to the synergic effect between fumed silica and polyamide wax as antisedimentation agents, both at a concentration of 2.0 wt %, the EACM could remain stable for 60 days. EACM showed an excellent drag reduction performance at both low and high viscosities in 100 000 mg/L salt brine. Specifically, a drag reduction of up to 72.4% was obtained using 0.21 wt % EACM (4.65 mPa s), and a 60.8% drag reduction was achieved using 1.0 wt % EACM (35.5 mPa s). When the concentration increased from 0.13 to 1.0 wt %, the EACM solution changed from viscous to elastic; the spatial network structure of the solution became more compact, and the proppant-carrying capacity was enhanced. The viscosity of 1.6 wt % EACM solution could be maintained at 55.9 mPa s after shearing at 90 °C for 120 min at a shear rate of 100 s −1 . EACM solution also exhibited the advantages of easy breaking and low residue. This paper provides guidance for the design and selection of a novel friction reducer suspension in the oil and gas industry.

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Section: Resultsmentioning

confidence: 99%

Preparation and Performance Evaluation of a Variable Viscosity Friction Reducer Suspension with High Salt Tolerance and Low Damage

Shi

Sun

et al. 2022

Energy Fuels

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Sedimentation of Microparticles in Highly Concentrated Non-Newtonian Emulsions

Błaszczyk

Przybysz

2022

Applied Sciences

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From the perspective of many industrial products, it is important that no phase separation occurs over time, as this affects their quality. Therefore, every effort is made to maintain the stability of the systems by the addition of various stabilizers, but additional artificial ingredients often discourage consumers. However, there is another alternative possibility to maintain the stability of such systems by consciously controlling the parameters of liquids and solids, based on the knowledge of the mechanisms occurring between the components. This is of immeasurable importance also in cases where multicomponent systems need to be separated, which is particularly important in chemical engineering and environmental engineering. The paper presents an experimental study of the solids-sedimentation process in highly concentrated, stable emulsions that exhibit the properties of non-Newtonian liquids. A study based on turbidimetric techniques is presented in which the influence of both solids (average grain diameters 150–700 μm and concentration 0.2–0.4 g/mL) and emulsion parameters (concentration 60–70% and average droplet diameters of 8.24–15.72 μm) were taken into account. The occurring phenomena have been also explained. As a result, the dependence of system parameters on the intensity of the sedimentation process was determined. This can be of great practical importance in product design in the chemical, food, pharmaceutical, or even cosmetic industry.

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Analysis of Viscosity Change and Oil Leakage Characteristics According to CaCO3 Particle Size and Anti-Sedimentation Agent Content on Bituminous Emulsion Mastic

Cited by 2 publications

References 2 publications

Preparation and Performance Evaluation of a Variable Viscosity Friction Reducer Suspension with High Salt Tolerance and Low Damage

Preparation and Performance Evaluation of a Variable Viscosity Friction Reducer Suspension with High Salt Tolerance and Low Damage

Sedimentation of Microparticles in Highly Concentrated Non-Newtonian Emulsions

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