Development and Performance Evaluation of a New Conformance Control Agent Gel DOI Creative Commons
Bin Ma, He Wang,

Shu Jiang

et al.

Gels, Journal Year: 2024, Volume and Issue: 10(10), P. 618 - 618

Published: Sept. 26, 2024

How to effectively plug the multi-scale fractured water channeling has always been key achieving efficient flooding of low-permeability oil reservoirs. In this paper, a new type supramolecular–polymer composite gel is developed, which suitable for plugging channeling. The composed polymer (such as polyacrylamide), cross-linking agent polyethyleneimine), supramolecular factor cyclodextrin) and polarity regulator ethyl alcohol). mass fraction polyacrylamide, polyethyleneimine, cyclodextrin alcohol are 0.15%, 0.2%, 1% respectively. At initial state, viscosity gelant system less than 20 mPa·s. It good injection performance in micro-scale fractures can enter deep part reservoir. 40 °C, form with double network structure after gelation. One networks formed by covalent interaction between polyacrylamide other self-assembly cyclodextrins under action alcohol. comprehensive greatly improved. strength >5 × 104 mPa·s, it large-scale fractures. be used conformance control oilfields.

Language: Английский

A crosslinked PVA/GO hydrogel for wound dressing with pH-controlled drug release capabilities DOI

Menghuan Zhu,

Shihao Zhang, Xianfeng Li

et al.

Materials Today Communications, Journal Year: 2025, Volume and Issue: 43, P. 111760 - 111760

Published: Jan. 28, 2025

Language: Английский

Citations

1
Design and Characterization of Peptide-Based Self-Assembling Microgel for Encapsulation of Sesaminol DOI Creative Commons
Jinhong Gao,

Heng Du,

Zhenhong Zhang

et al.

Foods, Journal Year: 2025, Volume and Issue: 14(6), P. 971 - 971

Published: March 12, 2025

Sesaminol is a natural functional compound of sesame with low bioaccessibility due to its high crystallinity. Here, peptide-based self-assembly microgel was constructed encapsulate sesaminol, reducing crystallinity and improving bioaccessibility. In this contribution, the peptide AcNH-Leu-Tyr-Tyr-CONH2 (LYY) shown form mesoporous three-dimensional (3D) through microstructure characterization. Various characterization methods revealed that LYY self-assembled β-folds random coils, primary intermolecular interactions arose from hydrogen bonding π-π stacking effect. Subsequently, sesaminol encapsulated within co-assembly. The maximum encapsulation efficiency 80.8 ± 0.9%, mainly in nanoparticles by morphology XRD results indicated primarily existed an amorphous state following encapsulation. cumulative release had sustained effect system. Its antioxidant levels were increased. Molecular docking main between structure interactions. Establishing provides valuable data theoretical support for research processing industry.

Language: Английский

Citations

0
Development and Performance Evaluation of a New Conformance Control Agent Gel DOI Creative Commons
Bin Ma, He Wang,

Shu Jiang

et al.

Gels, Journal Year: 2024, Volume and Issue: 10(10), P. 618 - 618

Published: Sept. 26, 2024

How to effectively plug the multi-scale fractured water channeling has always been key achieving efficient flooding of low-permeability oil reservoirs. In this paper, a new type supramolecular–polymer composite gel is developed, which suitable for plugging channeling. The composed polymer (such as polyacrylamide), cross-linking agent polyethyleneimine), supramolecular factor cyclodextrin) and polarity regulator ethyl alcohol). mass fraction polyacrylamide, polyethyleneimine, cyclodextrin alcohol are 0.15%, 0.2%, 1% respectively. At initial state, viscosity gelant system less than 20 mPa·s. It good injection performance in micro-scale fractures can enter deep part reservoir. 40 °C, form with double network structure after gelation. One networks formed by covalent interaction between polyacrylamide other self-assembly cyclodextrins under action alcohol. comprehensive greatly improved. strength >5 × 104 mPa·s, it large-scale fractures. be used conformance control oilfields.

Language: Английский

Citations

0