New Submission Title: Novel Magnetic Nanomaterials and Composites for Corrosion Resistance and Real-Time Sensing in Harsh Environments
POSTER
Abstract
Magnetic materials play critical roles in oilfield systems for debris capture, actuation, and environmental monitoring, yet their degradation under corrosive downhole conditions remains poorly understood. This project integrates corrosion resistance, interfacial control, and magnetic sensing to develop robust magnetic systems for extreme environments.
The first phase investigates the corrosion behavior of NdFeB and SmCo magnets in simulated CO₂/H₂S brines at elevated temperature and pressure, correlating surface degradation, magnetic loss, and coating performance across nickel, epoxy, and nanostructured protective layers.
In the second phase, iron-oxide-based magnetic nanoparticles (MNPs) will be synthesized with hybrid biopolymer–hydrocarbon surface chemistries (e.g., chitosan, alginate, dextran with alkyl grafts) to yield amphiphilic, biocompatible, and highly dispersible coatings. These hybrids combine aqueous stability from the biopolymer backbone with hydrocarbon affinity, ensuring long-term colloidal stability and magnetic responsiveness under high salinity and temperature. Comprehensive characterization (XRD, FTIR, SEM, VSM, and tensiometry) will correlate surface chemistry and magnetization with interfacial-tension reduction, reusability, and durability.
Finally, the magnetic signal variations of these hybrid MNPs will be exploited for non-contact, real-time sensing of corrosion, salinity, and scaling in multiphase systems, linking signal shifts to electrochemical and chemical indicators.
The biopolymer–hydrocarbon hybrid design is economical, scalable, and environmentally sustainable, leveraging renewable biopolymers and low-energy aqueous grafting. These multifunctional coatings merge stability, dispersibility, biocompatibility, and cost-effectiveness, establishing a green and practical framework for corrosion control, enhanced oil recovery, and intelligent fluid monitoring in extreme conditions.
The first phase investigates the corrosion behavior of NdFeB and SmCo magnets in simulated CO₂/H₂S brines at elevated temperature and pressure, correlating surface degradation, magnetic loss, and coating performance across nickel, epoxy, and nanostructured protective layers.
In the second phase, iron-oxide-based magnetic nanoparticles (MNPs) will be synthesized with hybrid biopolymer–hydrocarbon surface chemistries (e.g., chitosan, alginate, dextran with alkyl grafts) to yield amphiphilic, biocompatible, and highly dispersible coatings. These hybrids combine aqueous stability from the biopolymer backbone with hydrocarbon affinity, ensuring long-term colloidal stability and magnetic responsiveness under high salinity and temperature. Comprehensive characterization (XRD, FTIR, SEM, VSM, and tensiometry) will correlate surface chemistry and magnetization with interfacial-tension reduction, reusability, and durability.
Finally, the magnetic signal variations of these hybrid MNPs will be exploited for non-contact, real-time sensing of corrosion, salinity, and scaling in multiphase systems, linking signal shifts to electrochemical and chemical indicators.
The biopolymer–hydrocarbon hybrid design is economical, scalable, and environmentally sustainable, leveraging renewable biopolymers and low-energy aqueous grafting. These multifunctional coatings merge stability, dispersibility, biocompatibility, and cost-effectiveness, establishing a green and practical framework for corrosion control, enhanced oil recovery, and intelligent fluid monitoring in extreme conditions.
Presenters
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shawn Hughes
- University of Central Oklahoma