We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Thickening Performance Evaluation and Molecular Dynamics Simulation on Hydrophobic Associated Polymer in Acid Circumstances.
- Authors
XIANWU JING; YOUQUAN LIU; LANG ZHOU; XING YANG; PENGFEI ZHANG; JIAN LAN; JIE QI; SHANSHAN DAI; HONGSHENG LU
- Abstract
Acid thickener is of necessity for improving the exploitation capacity for oil and gas resources of carbonate reservoirs. Here a hydrophobic associated polymer (HPA) by introducing a nonionic hydrophobic monomer (AO) was designed as the acid thickener. The experimental results demonstrated that HPA suggests excellent acid resistance, shear resistance, and thermal stability attributing to the gradual exposure of hydrophobic chain to H2O circumstances that enhances the strength of hydrophobic association. The square radius of gyration of HPA raises with the introduction of AO confirming the unfold of HPA by intermolecular hydrophobic association, which strengthens the network structure. The decrease of mean square displacement and diffusion coefficient of H2O and H3O+ molecules suggest the enhancement for network structure by hydrophobic chain owing to HPA hindered the diffusion of H2O and H3O+ molecules. These findings are expected to supply a guidance for the design and research on the acid thickener.
- Subjects
MOLECULAR dynamics; CARBONATE reservoirs; POLYMERS; DIFFUSION coefficients; THICKENING agents; OXONIUM ions
- Publication
Oriental Journal of Chemistry, 2023, Vol 39, Issue 5, p1082
- ISSN
0970-020X
- Publication type
Article
- DOI
10.13005//ojc/390501