Interfacial Dilational Properties of Novel Crosslinking Phenol-Amine Resin Block Polyether Demulsifiers at Decane-Water Interfaces

2011 ◽  
Vol 148-149 ◽  
pp. 202-205 ◽  
Author(s):  
Yan Jiao Xie ◽  
Feng Yan ◽  
Jian Xin Li
Keyword(s):  
Rheological Properties ◽  
Adsorption Layer ◽  
Oil Field ◽  
Langmuir Trough ◽  
Plate Technique ◽  
Maximum Value ◽  
Wilhelmy Plate ◽  
Dilational Modulus ◽  
Dilational Elasticity

Nine novel crosslinking phenol-amine resin block polyether (PARPEmn) as demulsifier were synthesized for Shengli Oil Field. And the dilational rheological properties of absorbed film of nine different structural demulsifiers were investigated by longitudinal wavesmethod (the Langmuir trough-Wilhelmy plate technique) at the decane-water interfaces. The results show that demulsifier concentration is an important factor in controlling the dilational properties of adsorption layer. The dilational elasticity for all demulsifiers appeared a maximum value with the increasing concentration. Most important of all, the relations between interface dilational properties and demulsifier structures have been studied. It demonstrates that the interfacial dilational modulus increase with the increase the HLB value of demulsifiers.

WETTABILITY OF POLYMERS AND HYDROGELS AS DETERMINED BY WILHELMY PLATE TECHNIQUE

1982 ◽  
pp. 120-133 ◽  
Author(s):  
D.E. Gregonis ◽  
R. Hsu ◽  
D.E. Buerger ◽  
L.M. Smith ◽  
J.D. Andrade
Keyword(s):  
Plate Technique ◽  
Wilhelmy Plate

Rheological Properties of Middle Ear Effusions from Children with Otitis Media with Effusion

1986 ◽  
Vol 95 (3_suppl) ◽  
pp. 1-4 ◽  
Author(s):  
Yasuo Sakakura ◽  
Keisuke Hirata ◽  
Yuichi Majima ◽  
Takashi Matsubara ◽  
Kazuhiko Takeuchi ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Otitis Media ◽  
Middle Ear ◽  
Negative Correlation ◽  
Sharp Increase ◽  
Significant Positive Correlation ◽  
Otitis Media With Effusion ◽  
Transport Rate ◽  
Maximum Value ◽  
Oscillating Sphere

Freshly harvested middle ear effusions (MEE) were collected from children with otitis media with effusion. Both elasticity (G′) and viscosity (η′) of the MEE were determined by an oscillating sphere magnetic rheometer and compared with transportability of the MEE on mucus-depleted frog palates. A maximum value of transport was obtained at G′ of about 20 dyne/cm2 (at 1 Hz), and below this value there was a significant positive correlation between the transport rate and log G′. Above 20 dyne/cm2, the negative correlation between the transport rate and log G′ was significant. This shows there is a sharp increase in transport with increase in G′ up to 20 dyne/cm2, and at the higher value of G′ there is a slow decrease in transport with increasing G′. A similar significant correlation between the transport rate and log η′ was observed.

scholarly journals Rheological properties of emulsion of crude oil and water

1999 ◽  
Vol 21 (4) ◽  
pp. 213-230
Author(s):  
Duong Ngoc Hai ◽  
Nguyen Van Diep ◽  
Ha Ngoc Hien ◽  
Nguyen The Duc ◽  
Phung Dinh Thuc ◽  
...  
Keyword(s):  
Crude Oil ◽  
Rheological Properties ◽  
Sea Water ◽  
Water Concentration ◽  
Analytical Approximation ◽  
Oil Field ◽  
Wide Range ◽  
Measurement Results ◽  
Effective Dynamic ◽  
White Tiger

In the paper the rheological properties of crude oil of White Tiger oil-field (Vietnam) and its emulsion with sea-water, including measurement results and analytical approximation formulae for wide range of pressure, temperature and water concentration, are presented. As it is known, the crude oil of White Tiger oil-field is a high-paraffin and high-viscous oil. At the low temperature (T ≤ 40°C) it behaves as non-Newtonian fluid of Bingham-Shvedov group. Therefore, beside the effective viscosity, the effective dynamic shear stress is also measured and approximated. The rheological properties of crude oil and emulsion of crude oil and water are also measured and approximated for the case when the mixture contains 0.1% chemical reagent ES-3363.

scholarly journals Effects of Surfactant Warm-Mix Additives on the Rheological Properties of High-Viscosity Asphalt

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Jingtao Shi ◽  
Weiyu Fan ◽  
Yi Lin ◽  
Pinhui Zhao ◽  
Jian Ouyang
Keyword(s):  
Low Temperature ◽  
Rheological Properties ◽  
Asphalt Mixture ◽  
High Viscosity ◽  
Temperature Performance ◽  
Maximum Value ◽  
Best Value ◽  
Warm Mix Additives ◽  
Failure Temperature ◽  
Economic Improvement

In order to evaluate the possibility of the application of warm mixing technology in high-viscosity asphalt mixture, in this paper, the effects of surfactant warm-mix additives (WMAs) on physical and rheological properties of high-viscosity asphalt (HVA) which was prepared with self-developed SBS/C9 petroleum resin blends (SPR) modifier were measured. The results indicate that the addition of WMA can decrease the viscosity and softening point but improve the penetration and ductility of warm-mix HVA. With the increase of the content of WMA, the modulus, failure temperature, viscosity, and recovery rate of warm-mix HVA all increased at first and then decreased, and the maximum value appeared when the modifier content was 1.0%–1.5%. Moreover, when the amount of WMA is 1.5%, the low-temperature performance of warm-mix HVA reaches the best value. Thus, the amount of WMA is of great importance for the warm-mix HVA, and in order to achieve ideal rheological properties, the recommended amount of WMA is 1.0%–1.5%. Considering economic improvement and environmental protection, WMA could be an alternative for increasing the workability of HVA.

scholarly journals Influence of Graphene Nanoplatelet and Silver Nanoparticle on the Rheological Properties of WaterBased Mud †

2018 ◽  
Vol 8 (8) ◽  
pp. 1386 ◽  
Author(s):  
Hazlina Husin ◽  
Khaled Abdalla Elraies ◽  
Hyoung Jin Choi ◽  
Zachary Aman
Keyword(s):  
Rheological Properties ◽  
Silver Nanoparticle ◽  
Drilling Fluid ◽  
Oil Field ◽  
Fluid Loss ◽  
Drilling Mud ◽  
Fluid System ◽  
Graphene Nanoplatelet ◽  
Environmental Friendly ◽  
Water Based

Water-based mud is known as an environmental-friendly drilling fluid system. The formulation of water-based mud is designed to have specific rheological properties under specific oil field conditions. In this study, graphene nanoplatelet and silver nanoparticle (nanosilver) were added to a water-based mud formulation in which they act as drilling mud additives. Rheological properties measurements and filtration tests were conducted for evaluating the influence of the added nanoparticles. The results showed that the graphene nanoplatelet and the nanosilver increased the plastic viscosity (PV) by up to 89.2% and 64.2%, respectively. Meanwhile, both the yield point (YP) and the fluid loss values were reduced. In addition, we believe this is the first result ever report where nanosilver is utilized for enhancing-enhanced water-based mud’s performance.

Effect of Solvent Cleaning on Thermo-Mechanical and Rheological Properties of Plastic Wastes from Municipal Solid Waste (MSW)

2020 ◽  
Vol 856 ◽  
pp. 230-236
Author(s):  
Laongdaw Techawinyutham ◽  
Wiroj Techawinyutham
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Rheological Properties ◽  
Loss Modulus ◽  
Tensile Modulus ◽  
Cleaning Process ◽  
Maximum Value ◽  
Plastic Wastes ◽  
Thermal Stability Of ◽  
Better Than

The plastics from municipal solid waste (MSW) were modified to improve cleanness for adding value. The stir and sonication were performed as cleaning processes. Xylene, tetrachloroethylene, chloroform, acetone and toluene were used as solvent cleaning. The most suitable cleaning process was sonication method with cleaning time of 5 min and the appropriate solvent was xylene for washing the plastic wastes for further study in terms of thermo-mechanical and rheological properties. The cleaning process was successful as evidence in thermogravimetric analysis (TGA) results. The properties of new plastics, cleaned plastic wastes and plastic wastes were compared and analyzed. Tensile strength of the specimens from plastic wastes was slightly decreased; however, elongation and impact strength of cleaned plastic wastes and plastic wastes sharply dropped as compared to new plastics. Tensile modulus of cleaned plastic wastes was slightly better than that of new plastics. Thermal stability of plastic waste was slightly lower than that of new plastic. Shear storage modulus (Gʹ), shear loss modulus (Gʺ) and shear viscosity (η) of new plastics showed the maximum value; on the other hand, those properties of cleaned plastic wastes and plastic wastes were similar. The cleaning method with solvent did not destroy thermo-mechanical and rheological properties of the cleaned plastic wastes.

Role of chemical additives and their rheological properties in enhanced oil recovery

2020 ◽  
Vol 36 (7) ◽  
pp. 789-830 ◽  
Author(s):  
Jinesh Machale ◽  
Subrata Kumar Majumder ◽  
Pallab Ghosh ◽  
Tushar Kanti Sen
Keyword(s):  
Rheological Properties ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Oil Field ◽  
Water Soluble ◽  
Attractive Alternative ◽  
Chemical Additives ◽  
Sweep Efficiency ◽  
Chemical Eor ◽  
Natural Surfactants

AbstractA significant amount of oil (i.e. 60–70%) remains trapped in reservoirs after the conventional primary and secondary methods of oil recovery. Enhanced oil recovery (EOR) methods are therefore necessary to recover the major fraction of unrecovered trapped oil from reservoirs to meet the present-day energy demands. The chemical EOR method is one of the promising methods where various chemical additives, such as alkalis, surfactants, polymer, and the combination of all alkali–surfactant–polymer (ASP) or surfactant–polymer (SP) solutions, are injected into the reservoir to improve the displacement and sweep efficiency. Every oil field has different conditions, which imposes new challenges toward alternative but more effective EOR techniques. Among such attractive alternative additives are polymeric surfactants, natural surfactants, nanoparticles, and self-assembled polymer systems for EOR. In this paper, water-soluble chemical additives such as alkalis, surfactants, polymer, and ASP or SP solution for chemical EOR are highlighted. This review also discusses the concepts and techniques related to the chemical methods of EOR, and highlights the rheological properties of the chemicals involved in the efficiency of EOR methods.

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