Self-assembly of hydrophobically associating amphiphilic polymer with surfactant and its effect on nanoemulsion

Wang, Chengwen; Meng, Renzhou; Jin, Jianzhou; Wang, Ruihe

doi:10.1016/j.colsurfa.2022.128599

Cited by 11 publications

(1 citation statement)

References 54 publications

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“…[26][27][28] As a result, this superiority has been studied and applied in water-based drilling fluids, such as rheological agents and fluid loss reducers, and surfactants. [29][30][31] For example, Chaoqun Wang et al synthesized a copolymer filtrate reducer for water-based drilling fluid by using hydrophobic N-isopropyl acrylamide monomer, and its filtration control properties showed excellent thermal tolerance of 200 C due to its temperature-sensitive properties and the formation of denser "ball" microstructure. [32] Binqiang et al studied the thermo-thickening properties of the amphiphilic polymer viscosifier and found the changes of hydrophilicity/hydrophobicity and association structure of the amphiphilic polymer.…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic association copolymer as viscosifier for high‐temperature high‐pressure anti‐sedimentation performance of water‐based drilling fluid

Wang

Qin³

et al. 2022

Polymer Engineering & Sci

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In this study, a new type of amphiphilic copolymer SPXFJ, with amide and sulfonate functional groups, was synthesized via the free radical polymerization method. And the chemical structure and properties of this new polymer were characterized by elemental analysis (EA), X-ray photoelectron spectroscopy (XPS), intrinsic viscosity tests, and thermogravimetric analysis (TGA). The hydrophobic association and thermo-thickening properties of SPXFJ copolymer were investigated through viscometer, contact angle tester, highresolution scanning electron microscope analysis, and X-ray laser static scattering (XLSS) test. The test results indicated that SPXFJ copolymer showed superior amphiphilic properties, especially in the solution condition. Furthermore, a thermo-associative behavior was found in the solution that aged at 180 C. Thus, SPXFJ-based drilling fluid showed a higher temperature resistance. The test results, in both high-temperature aging tests and hightemperature high-pressure (HTHP) downhole simulation tests, showed that the water-based drilling fluid showed excellent anti-sedimentation properties with the use of SPXFJ polymer and can be improved significantly, especially in the high-pressure condition. The water-based drilling fluid of 2.0 g/cm 3 showed no sedimentation of barite powders at 180 C/100 MPa, of which the density deviation just reached approximately 0.06 g/cm 3 .

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Section: Introductionmentioning

confidence: 99%

Hydrophobic association copolymer as viscosifier for high‐temperature high‐pressure anti‐sedimentation performance of water‐based drilling fluid

Wang

Qin³

et al. 2022

Polymer Engineering & Sci

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Preparation and properties of a clean, low‐damage waterproof locking damage multifunctional integrated water‐based fracturing fluid

Fan

Lai

Tang³

et al. 2022

J of Applied Polymer Sci

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In the wake of increasingly serious challenges in oilfield production and energy utilization, oil and gas reservoirs with ultra‐low permeability have gained tremendous importance for global energy supply. In such reservoirs, hydraulic fracturing is an important stimulation measure. Here, to develop a high‐performance fracturing fluid, a novel type of water‐based thickener named FPM‐2 was exploited based on low‐molecular weight alcohol and hydrophobically associating polymers, labeled as AAOS, and synthesized using acrylamide, acryloyl acid, octadecyl dimethyl allyl ammonium chloride, and octadecyl methacrylate. Dissolution rate and scanning electron microscope results showed the system to be a fast‐soluble thickener with a spatially cross‐linked network structure. The viscosity of 0.8 wt% FPM‐2 reached up to 216 mPa·s. Investigation of the rheological behavior showed that the thickener, 1.4 wt% FPM‐2, could withstand a temperature up to 180°C after being sheared for 80 min at 170 s−1, and its viscosity was up to 53 mPa·s. The 0.6 wt% FPM‐2 sample also displayed excellent shear recovery properties and high viscoelasticity. The most fascinating aspect of FPM‐2 was that its unique formula imparted the thickener with characteristics such as enhanced self‐association, waterproof locking, and prevention of wax formation. In this research, the recovery value of core permeability exceeded 80%, and wax was precipitated as small‐sized particles that prevented pipeline blockage. Therefore, the use of this multi‐effect cleansing thickener should set the trend for the development of oil and gas resources.

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Molecular dynamics simulation of potassium perfluorooctanesulfonate at the oil/water interface

Jiang,

Jing,

Zhou

et al. 2023

Struct Chem

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Self-assembly of hydrophobically associating amphiphilic polymer with surfactant and its effect on nanoemulsion

Cited by 11 publications

References 54 publications

Hydrophobic association copolymer as viscosifier for high‐temperature high‐pressure anti‐sedimentation performance of water‐based drilling fluid

Hydrophobic association copolymer as viscosifier for high‐temperature high‐pressure anti‐sedimentation performance of water‐based drilling fluid

Preparation and properties of a clean, low‐damage waterproof locking damage multifunctional integrated water‐based fracturing fluid

Molecular dynamics simulation of potassium perfluorooctanesulfonate at the oil/water interface

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