Experimental investigation on transport property and emulsification mechanism of polymeric surfactants in porous media

Chen, Xiaolong; Li, Yiqiang; Gao, Wenbin; Chen, Cheng

doi:10.1016/j.petrol.2019.106687

Cited by 29 publications

(10 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The smaller emulsion droplet is automatically swallowed by the larger emulsion droplet when they coalesce and the interfacial film rupture; this is the Ostwald ripening of the emulsion 61 . In addition, due to the effects of viscoelasticity and inertial forces, vortex flows inside the emulsion droplets are generated when the emulsion droplets flow in complex pores and throats 62,63 . The viscoelastic vortex flow of the emulsion droplets increases the normal stress and tangential stress while displacing the remaining oil, and it improves the oil displacement efficiency.…”

Section: Characteristics Of Crude Oil Emulsion Flow During Chemical F...mentioning

confidence: 99%

A review of crude oil emulsification and multiphase flows in chemical flooding

Yazhou

Yin

et al. 2022

Energy Science & Engineering

View full text Add to dashboard Cite

Chemical flooding has become an important method to enhance oil recovery in high‐water cut reservoirs. Crude oil emulsification often occurs during chemical flooding, and it plays a very positive role in increasing crude oil production. Crude oil emulsification increases the complexity of fluid flow in the reservoir including multifield coupling characteristics and multiphase flow and multiphase form characteristics. This paper discusses advanced research techniques and the status of multiphase fluid flows in chemical flooding, including the interfacial rheological properties of emulsions, physical simulation of emulsion seepage, and mathematical models and numerical simulations of seepage. Studies on the mechanism of seepage have analyzed the macroscopic and microscopic aspects of seepage during chemical flooding. Prospective directions for future research are indicated including the study of the interfacial rheological characteristics of emulsions, methods for the evaluation of the seepage characteristics of chemical flooding, and mathematical models of multiphase seepage during chemical flooding.

show abstract

Section: Characteristics Of Crude Oil Emulsion Flow During Chemical F...mentioning

confidence: 99%

A review of crude oil emulsification and multiphase flows in chemical flooding

Yazhou

Yin

et al. 2022

Energy Science & Engineering

View full text Add to dashboard Cite

show abstract

“…Despite the optimal solubility-enhancing properties, thickening behavior, dispersibility and flocculability possessed by the polymeric surfactants, it is generally difficult to realize a directional arrangement of the polymeric surfactant molecules at the interface [ 3 ]. Their surface tension is observed to be weaker than the traditional surfactants [ 4 , 5 ]. Thus, it takes much longer for these surfactants to reach the surface tension equilibrium.…”

Section: Introductionmentioning

confidence: 99%

Soybean-Oil-Based CO2-Switchable Surfactants with Multiple Heads

Huang

Quan

et al. 2021

Molecules

View full text Add to dashboard Cite

Oligomeric surfactants display the novel properties of low surface activity, low critical micellar concentration and enhanced viscosity, but no CO2 switchable oligomeric surfactants have been developed so far. The introduction of CO2 can convert tertiary amine reversibly to quaternary ammonium salt, which causes switchable surface activity. In this study, epoxidized soybean oil was selected as a raw material to synthesize a CO2-responsive oligomeric surfactant. After addition and removal of CO2, the conductivity analyzing proves that the oligomeric surfactant had a good response to CO2 stimulation. The viscosity of the oligomeric surfactant solution increased obviously after sparging CO2, but returned to its initial low viscosity in the absence of CO2. This work is expected to open a new window for the study of bio-based CO2-stimulated oligomeric surfactants.

show abstract

“…(a) Introducing new functional groups into the backbone chain of polymerization. [5][6][7] For example, the salt resistance structural unit (2-acrylamide-2-methyl propyl sulfonic acid), 8,9 the structural unit that inhibits the hydrolysis of amides (N-vinyl-2-pyrrolidone), and the structural unit resistant to hydrolysis (N-alkylacrylamide). (2) The introduction of ring structure, rigid group, or large side group to improve the thermal stability of the polymer.…”

Section: Introductionmentioning

confidence: 99%

Thermally stable poly (acrylic acid‐acrylamide‐biomass‐fly ash) composites with improved temperature resistance and salt resistance

Liu

Yan

Zhao

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

Engineering functional materials from biomass and industrial waste is of great significance for sustainable chemistry and engineering. Bio-based poly (acrylic acid-acrylamide-biomass-fly ash) (PAABF) composites with appropriate densities were designed. Graft copolymer composites were prepared for the first time by combining biomass and fly ash as graft materials with acrylic acid and acrylamide as monomers. The results showed that PAABF composites have a three-dimensional network structure. Cellulosic biomass (sodium carbo-xymethyl cellulose, cattail cellulose) and fly ash improved the thermal stability, water absorption, water retention, temperature resistance, and salt resistance of the composites. PAABF composites can be used as water plugging profile control agent for oilfield with high-salinity and deep burial.

show abstract

Experimental investigation on transport property and emulsification mechanism of polymeric surfactants in porous media

Cited by 29 publications

References 23 publications

A review of crude oil emulsification and multiphase flows in chemical flooding

A review of crude oil emulsification and multiphase flows in chemical flooding

Soybean-Oil-Based CO2-Switchable Surfactants with Multiple Heads

Thermally stable poly (acrylic acid‐acrylamide‐biomass‐fly ash) composites with improved temperature resistance and salt resistance

Contact Info

Product

Resources

About