My research focuses on flow assurance issues that impair efficient oil and gas production. I tackle these complex problems via a multiscale approach, which combines various experimental and advanced computational techniques at microscopic, mesoscopic, and macroscopic scales. The overall goals of my research include elucidating the fundamental physics of these flow assurance issues and developing versatile models to guide industrial practices. Current research topics include paraffin gelation and deposition in multiphase flow; asphaltene precipitation and deposition; rheological and flow behaviors of non-Newtonian petroleum fluids; and applications of molecular simulation in oil and gas production.