Effect of ionic liquid C2mimBr on rheological behavior of Gemini surfactant 12-2-12 aqueous solution

Yue, Ling; He, Zi-Meng; Chen, Jieqiong; Shang, Yazhuo; Liu, Honglai

doi:10.1007/s00396-015-3629-1

Cited by 9 publications

(8 citation statements)

References 59 publications

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“…The VES fracturing fluid showed many advantages, especially for the low-permeability reservoir, including low damage, low drag friction, free of cross-linker and biocides. Unlike polymers or guar gum gel, wormlike micelles collapse into spherical micelles or emulsions when exposed to hydrocarbon in the reservoir, which imparts the VES fracturing fluid residue free and easy to flow back [30,31]. The developed viscoelastic surfactants include anionic VES, cationic VES, and zwitterionic VES, among which cationic VES is applied most widely to the VES fracturing fluid [16,32,33,34].…”

Section: Introductionmentioning

confidence: 99%

Study of a Novel Gemini Viscoelastic Surfactant with High Performance in Clean Fracturing Fluid Application

et al. 2018

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Gemini surfactant, as a functionally flexible polymer-like material in the aqueous solution, has attracted increased attention in reservoir stimulation of hydraulic fracturing in recent decades. A new Gemini cationic viscoelastic surfactant named JS-N-JS, which has a secondary amine spacer group and two ultra-long hydrophobic tails, was synthesized from erucamidopropyl dimethylamine, diethanolamine, and thionyl chloride as a thickener for hydraulic fracturing fluid. Compared with some Gemini cationic surfactant with methylene spacer, JS-N-JS showed a lower critical micellar concentration (CMC) and higher surface activity due to the hydrogen bond formed between the secondary amine and water molecule intends to reduce electrostatic repulsion, which is more beneficial to be the fracturing fluid thickener. Moreover, the performance of JS-N-JS solution can be further improved by salts of potassium chloride (KCl) or sodium salicylate (NaSal), while organic salt behaved better according to the measurements. The SEM observation confirmed that JS-N-JS/NaSal system owned a tighter network microstructure, and JS-N-JS/NaSal system exhibited a distinct superior viscoelasticity system at a sweep frequency of 0.1–10 Hz. As a fracturing fluid, the solution with a formula of 30 mmol JS-N-JS and 100 mmol NaSal was evaluated according to the petroleum industrial standard and presented excellent viscoelastic properties, the viscosity of which can maintain above 70 mPa·s for 110 min under a shear rate of 170 s−1 at 120 °C. Meanwhile, the drag reducing rate of the formula could reach above 70% with the increase of shear rate. Finally, the viscous fracturing fluid can be broken into the water-like fluid in 1.2 h after being fully exposed to hydrocarbons and the water-like fluid presented a low damage to the tight sand reservoirs according to the core flooding experiments, in which the permeability recovery rate can reach 85.05%. These results fully demonstrate that the JS-N-JS solution fully meets the requirement of the industrial application of hydraulic fracturing.

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Section: Introductionmentioning

confidence: 99%

Study of a Novel Gemini Viscoelastic Surfactant with High Performance in Clean Fracturing Fluid Application

et al. 2018

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“…The increasing C25‐6‐C25 concentration in the presence of KCl augments the entanglements, causing the growth of the plateau modulus ( G 0 , elastic modulus at high frequencies) and the decrease of ω c . The G 0 of the three C25‐6‐C25 solutions are 20.9, 41.0, and 54.0 Pa.…”

Section: Resultsmentioning

confidence: 98%

Self‐assembly properties of ultra‐long‐chain gemini surfactant with high performance in a fracturing fluid application

Yang

Zhang

et al. 2016

J of Applied Polymer Sci

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A new cationic gemini surfactant (C25‐6‐C25), which had a special structure consisting of ultra‐long hydrophobic chains and amide groups, was synthesized using a main feedstock source obtained from rapeseed for thickening purposes. The 12 mmol L−1 C25‐6‐C25 fluid containing 0.19 mol L−1 potassium chloride (KCl) exhibited highly elastic properties at the angular frequency of 0.04–10 rad s−1. Its viscosity could be maintained at 55 mPa s for 1.5 h under a shear rate of 170 s−1 at 110 °C and it also showed a good proppant‐suspending property. C25‐6‐C25/KCl fluid exhibited high viscoelasticity and good performance, which were attributed to intermolecular forces, hydrogen bonding, and the shielding effect of electrostatic repulsion by KCl. Thus, C25‐6‐C25 is a very promising candidate for fracturing. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44602.

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“…The micellar solution of the conventional quaternary ammonium gemini surfactant of m – s – m type generally demonstrates Newtonian fluid behavior at lower concentration (≤0.04 mol·L –1 or ≤2.46 wt %) and is viscoelastic in nature at higher concentration. 62 By contrast, the micellar solution of morpholinium gemini surfactants is Newtonian fluid up to surfactant concentration as high as 50 wt %. The Newtonian fluidlike behavior of the morpholinium gemini surfactant at high surfactant concentration can be attributed to the affinity of these surfactants to form hydrogen bonding with water.…”

Section: Resultsmentioning

confidence: 99%

Physicochemical Evaluation of Micellar Solution and Lyotropic Phases Formed by Self-Assembled Aggregates of Morpholinium Geminis

et al. 2017

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The micellar solution and the lyotropic liquid crystalline phases formed by gemini surfactants containing morpholinium headgroups are investigated for their self-aggregation and physicochemical properties in water. These gemini surfactants demonstrated good surface activity because they are able to undergo micellization at lower concentration and form nanosized micellar aggregates in dilute aqueous solution. The binary mixture of the morpholinium gemini surfactant–water system is investigated over a wide range of concentrations. The micellar solution of the morpholinium gemini surfactants demonstrated Newtonian fluidlike behavior between 10 and 50 wt % as the observed viscosities were independent of the applied shear rate. At higher concentration, morpholinium geminis formed self-assembled lyotropic phases in water. These liquid crystalline phases were characterized by small-angle X-ray scattering and polarized optical microscopy techniques.

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Effect of ionic liquid C2mimBr on rheological behavior of Gemini surfactant 12-2-12 aqueous solution

Cited by 9 publications

References 59 publications

Study of a Novel Gemini Viscoelastic Surfactant with High Performance in Clean Fracturing Fluid Application

Study of a Novel Gemini Viscoelastic Surfactant with High Performance in Clean Fracturing Fluid Application

Self‐assembly properties of ultra‐long‐chain gemini surfactant with high performance in a fracturing fluid application

Physicochemical Evaluation of Micellar Solution and Lyotropic Phases Formed by Self-Assembled Aggregates of Morpholinium Geminis

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