Principal Investigator: Dahi Taleghani, Arash
University: Pennsylvania State University
Industry Partners: Polymics, Ltd.
Polymer seals are critical for the integrity of deep hot geothermal wells against unwanted fluid leaks that pose environmental risks. Chemicals, like hydrogen sulfide (H2S) and carbon dioxide (CO2), are present in these fluids and may severely damage seal polymers, especially in steam environments with temperatures above 300°C. To address this issue, we propose to develop new polymer nanocomposites with strong chemical and thermal resistances by dispersing nano additives into raw polymers. Nano Additives such as graphite nanoplatelets (GNP), expanded graphite (EG), graphene oxide (GO), boron nitride (BN), and alumina (Al2O3) will be treated to make new composites. The uniform distribution of nano additives in the polymer is crucial to developing a strong barrier against aggressive substances. Functional groups on the surfaces of treated nanoparticles strengthen physical and chemical interactions between them and the polymer matrix. Collaborating with Polymics brings their capabilities to fabricate polymer nanocomposites that withstand subsurface chemicals and elevated temperatures.