Journal of Industrial and Engineering Chemistry, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 1, 2024
Language: Английский
Geoenergy Science and Engineering, Journal Year: 2024, Volume and Issue: 239, P. 212972 - 212972
Published: May 23, 2024
Language: Английский
Citations
4
Journal of Material Science and Technology, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Language: Английский
Citations
0
Journal of Molecular Liquids, Journal Year: 2025, Volume and Issue: unknown, P. 127080 - 127080
Published: Feb. 1, 2025
Language: Английский
Citations
0
Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: March 2, 2025
Conventional methods for preparing Janus nanosheets, including graphene oxide-based molybdenum disulfide-based and silicon dioxide-based as well polymer-based involve complicated procedures, poor repeatability, difficulty in imparting properties, which hinder further application. Here, the present authors develop a facile modified suspension polymerization method polymer deep eutectic solvents completely replace water continuous phase. nanosheets can be fabricated using common hydrophobic hydrophilic monomers, such styrene (St), butyl acrylate (BA), acrylamide (AM), 2-acrylamido-2-methylpropanesulfonic acid (AMPS), acryloyloxyethyl trimethylammonium chloride (DAC), maleic anhydride (MAH). Additionally, thickness of precisely controlled range from 40 to 100 nm by adjusting volume ratio higher alkanes monomer. Subsequently, emulsification properties polystyrene-based were evaluated, showing better performance at concentrations ranging 1 50 mg/L compared with concentrations. This observation aligns corresponding reduction interfacial tension changes moduli film. Moreover, adsorption onto core alters its wettability, changing it water-wettable state an oil-wettable state. Consequently, series flooding tests reveal that poly(St-co-AM), poly(St-co-MAH), poly(St-co-AMPS) enhance oil recovery reduce injection pressure ultralow (50 mg/L).
Language: Английский
Citations
0
Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(5)
Published: May 1, 2025
Heavy oil stands as a pivotal unconventional resource. The reduction of heavy viscosity through emulsification emerges critical strategy for augmenting its recovery. In this study, novel Janus amphiphilic carbon nanotube (JCMS18) was synthesized utilizing Pickering emulsion templating and polymerization. structural integrity JCMS18 meticulously characterized employing Fourier-transform infrared spectroscopy, atomic force microscopy, scanning electron transmission microscopy. Contact angle measurements further confirm the unique amphiphilicity JCMS18. A JCMS18-based nanofluid reducer subsequently formulated by amalgamating with cocamidopropyl betaine sodium alcohol ether sulfate. findings revealed that exhibits exceptional interfacial tension (IFT) capabilities. At concentration 0.02 wt. %, diminished oil–water IFT to 15.8 mN/m. reduced oil/water 5.418 × 10−2 Microscopic displacement experiments disclosed significantly curtailed residual saturation, encompassing blind-end, columnar, cluster, film-like oil. Core flooding demonstrated 0.3 pore volumes enhanced recovery 26.16% in 1500-mD core. Nuclear magnetic resonance corroborated primary mechanisms are emulsification, reduction, wettability alteration. These underscore substantial potential development.
Language: Английский
Citations
0
ACS Omega, Journal Year: 2024, Volume and Issue: 9(31), P. 33702 - 33709
Published: July 23, 2024
Aiming at the problems of current similar hydrogel plugging agents, such as poor breaking performance, nonspontaneous degradation, and reservoir pollution which have been plaguing their application in temporary operations, this study has synthesized a cross-linking agent for hydrogels with dimethylaminoethyl acrylate dibromo-p-xylene raw materials. With Fourier transform infrared, 1H nuclear magnetic resonance, thermogravimetric analyses representations structure thermal stability agent, set self-degrading systems developed core so to make evaluations on temperature resistance, damage performance conduct its gelation kinetics. The research results show that shows good stability. When applied system, shown high maintaining gel strength 5–10 days 50–90 °C, viscosity after complete degradation lower than 10 mPa·s. excellent bearing system led rate below 5%. kinetics that, increase concentration time is shortened, reaction order between cross-linker about 0.6 under condition °C.
Language: Английский
Citations
3
Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(18), P. 17392 - 17403
Published: Sept. 3, 2024
Amphiphilic Janus molybdenum disulfide (MoS2) nanosheets have emerged as promising candidates for enhanced oil recovery (EOR) due to their low cost and exceptional interfacial properties. Nevertheless, research on the modification methods MoS2 remains scarce. In this article, we prepared amphiphilic (L-MoS2-C) by double-sided of using a starch template method. Specifically, l-glutamic acid (l-Glu) with hydrophilic carboxyl group was grafted onto one side nanosheets, while cetyltrimethylammonium bromide (CTAB) hydrophobic alkyl chain used other. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive analysis (EDS) characterizations confirmed functionalization CTAB l-Glu molecules over surfaces nanosheets. Benefiting from properties, L-MoS2-C presented excellent dispersion stability in brine spontaneously accumulate at oil–water interface, forming an elastic film. At 0–10,000 mg/L NaCl concentration, size distribution centered range 300–500 nm. ultralow concentration (0.005 wt %), can reduce tension approximately 60% stabilize emulsions emulsifier. Furthermore, possesses remarkable wettability alteration capability, altering contact angle quartz plate surface 104.3 30.3°, thereby converting capillary resistance into driving force. Micromodel flooding core experiments demonstrate that these superior properties enable nanofluid effectively mobilize remaining residual after water contributing additional 15.1% recovery. This work introduces novel method MoS2, offering low-cost, high-performance, highly nanoflooding agent tertiary sandstone reservoirs.
Language: Английский
Citations
3
ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 17, 2024
Language: Английский
Citations
2
Journal of Industrial and Engineering Chemistry, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 1, 2024
Language: Английский
Citations
1