Time- and Temperature-Dependence of Rheological Properties of Cemented Tailings Backfill with Sodium Silicate

In this paper the mobility and factots affecting mobility of phenyl silicone rubber is studied. The results showed that the crystallinity of phenyl silicone rubber was declined because of the presence of phenyl and the higher the phenyl content, the lower the crystallinity when the phenyl content was low. The viscosity of the phenyl silicone rubber was rised as molar mass and phenyl content of the rubber was increased but the changes was not uniform. The viscosity of the phenyl silicone rubber was declined as temperature was increased and viscosity-temperature dependence of the high molar mass phenyl silicone rubber was larger. The influence of shearing on the viscosity and mobility of the phenyl silicone rubber were evident.

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Temperature dependence of starch gel rheological properties

Food Hydrocolloids ◽

10.1016/j.foodhyd.2010.02.003 ◽

2010 ◽

Vol 24 (6-7) ◽

pp. 570-577 ◽

Cited By ~ 4

Author(s):

Ryszard Rezler ◽

Stefan Poliszko

Keyword(s):

Temperature Dependence ◽

Rheological Properties ◽

Starch Gel

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Rheology of Alkali-Activated Blended Binder Mixtures

Materials ◽

10.3390/ma14185405 ◽

2021 ◽

Vol 14 (18) ◽

pp. 5405

Author(s):

Biruk Hailu Tekle ◽

Ludwig Hertwig ◽

Klaus Holschemacher

Keyword(s):

Sodium Hydroxide ◽

Rheological Properties ◽

Yield Stress ◽

Sodium Silicate ◽

Total Solid ◽

Environmental Benefits ◽

Total Water ◽

The Past ◽

Binder Ratio ◽

Alkali Activated

Alkali-activated cement (AAC) is an alternative cement that has been increasingly studied over the past decades mainly because of its environmental benefits. However, most studies are on heat-cured AACs and are focused on mechanical properties. There is a lack of research on the fresh properties of ambient-cured AAC systems. This study investigates the rheological properties of ambient-temperature-cured alkali-activated blended binder mixtures activated with sodium silicate and sodium hydroxide solutions. The influence of binder amount, alkaline solid to binder ratio (AS/B), sodium silicate to sodium hydroxide solids ratio (SS/SH), and total water content to total solid (from the binding materials) ratio (TW/TS) on the rheological properties are investigated. The effect of borax as an admixture and silica fume as a replacement for fly ash is also investigated. The results showed that both the yield stress and plastic viscosity are mainly affected by the binder content and TW/TS ratio decreasing with the increase of each parameter. The yield stress increased with the increase of the SS/SH ratio. Borax significantly reduced the yield stress, while silica fume’s effect was dependent on its dosage.

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Formation Damage Avoidance by Reducing Invasion with Sodium Silicate-Modified Water-Based Drilling Fluid

Energies ◽

10.3390/en12081485 ◽

2019 ◽

Vol 12 (8) ◽

pp. 1485 ◽

Cited By ~ 3

Author(s):

Salaheldin Elkatatny ◽

Tural Jafarov ◽

Abdulaziz Al-Majed ◽

Mohamed Mahmoud

Keyword(s):

Rheological Properties ◽

Sodium Silicate ◽

Filter Cake ◽

Drilling Fluid ◽

Formation Damage ◽

Ct Scanner ◽

Tight Sandstone ◽

Ct Number ◽

Mechanical Removal ◽

Before And After

Drilling multilateral and horizontal wells through tight gas reservoirs is a very difficult task. The drilling fluid should be designed to reduce both fluid and solid invasion into the tight formation to avoid formation damage by aqueous phase trapping. The objective of this paper is to assess the effect of sodium silicate on the drilling fluid properties such as rheological and filtration properties. Rheological properties (RPs) were measured at different temperatures while the filtration test was performed at 300 °F and 300 psi differential pressure. A retained permeability calculation was determined to confirm the prevention of solid invasion. The rheological properties results confirmed that the optimal concentration of sodium silicate (SS) was 0.075 wt.% and at the same time, the temperature has no effect on the SS optimum concentration. Using 0.075 wt.% of SS reduced the filtrate volume by 53% and decreased the filter cake thickness by 65%. After mechanical removal of the filter cake, the return permeability of the tight sandstone core was 100% confirming the prevention of solid invasion. The computer tomography (CT) scanner showed that the CT number before and after the filtration test was very close (almost the same) indicating zero solid invasion and prevention of the formation damage.

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Rheological Properties of Dynamically Vulcanised Thermoplastic Elastomer Composites of Polypropylene, Ethylene Propylene Diene Terpolymer and White Rice Husk Ash: Temperature Dependence

Jurnal Teknologi ◽

10.11113/jt.v39.437 ◽

2003 ◽

Vol 39 (1) ◽

Cited By ~ 1

Author(s):

S. Siriwardena ◽

H. Ismail ◽

U. S. Ishiaku

Keyword(s):

Temperature Dependence ◽

Rheological Properties ◽

Rice Husk ◽

Rice Husk Ash ◽

Thermoplastic Elastomer ◽

White Rice ◽

Ethylene Propylene ◽

Elastomer Composites ◽

Ethylene Propylene Diene Terpolymer

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Study of physical-chemical and rheological properties of high-paraffin oils

Azerbaijan Oil Industry ◽

10.37474/0365-8554/2021-3-26-30 ◽

2021 ◽

pp. 26-30

Author(s):

G.R. Gurbanov ◽

◽

P.F. Ahmadov ◽

Keyword(s):

Surface Tension ◽

Thermal Expansion ◽

Temperature Dependence ◽

Rheological Properties ◽

Temperature Rise ◽

Dynamic Viscosity ◽

Biological Properties ◽

Temperature Fields ◽

Paraffin Oil ◽

Physical Chemical

The temperature dependence of physical-chemical and biological properties of high-paraffin oil was studied in laboratory conditions. The experiments were carried out on the oil samples without agents and with addition of 800 g/t composition developed at the ratio of Difron-4201 + Difron-3705 = 1:1. The increase in the density for 3.8 %, in the ratio of surface tension for 16 %, in the ratio of kinematic and dynamic viscosity up to 88 %, as well as in the ratio of the thermal expansion for 50.11 % was observed in the samples without agents in the temperature rise to 50K. In the samples included in the composition, the surface tension, kinematic and dynamic viscosity sharply decresed in all temperature fields compared to the samples without agents, the density practically did not change, and the ratio of thermal expansion volume slightly differed in all temperature fields.

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