Study of the Chemistry of Soured and Chemically Treated Reservoir Fluids and Potential Impact on Microbial Influenced Corrosion in Oil and Gas Production Facilities by © Abdulhaqq Ameen Ibrahim A thesis submitted to the School of Graduate Studies in partial fulfillment of the requirements for the degree of Doctor of Philosophy at the Faculty of Engineering and Applied Science Memorial University of Newfoundland February 2020 St. John's Newfoundland and Labrador