Studies of Aqueous Hydrogen Sulfide Corrosion in Producing SAGD Wells
Engineering--Marine and Ocean
MetadataShow full item record
AbstractIn this research lab and field corrosion coupon testing was completed to determine corrosion rates on relevant Steam Assisted Gravity Drainage (SAGD) metals. Evaluating how rates varied with well depth, environment, and a dominating corrosion mechanism. Materials tested in the lab were 1018 carbon steel, Deloro-40 and Stellite-6, TN-55TH, galvanized (GLV) J-55 and K-55. Field coupon materials included L-80, J-55, and a GLV-J55+J-55 couple. Corrosion rates decreased from 0.0178mm/y at the wells bottom to 0.0145mm/y at higher elevations. This corresponded to a decrease in iron sulfide (FeS) scale content from the well bottom upwards formed through a solid-state reaction between aqueous H2S and the metal. High average corrosion rates of 0.263mm/y were measured in the lab, compared to the low 0.0183mm/y in field studies. This difference is due to the inhibiting effects of oil in the field which inhibits corrosion rates and the longer test duration.
CitationPehlke, T. (2017). Studies of Aqueous Hydrogen Sulfide Corrosion in Producing SAGD Wells (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/27911
University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
Showing items related by title, author, creator and subject.
Kumar, Rakesh (Graduate Studies, University of Calgary, Calgary, 2017)Global Navigation Satellite Systems (GNSS) have proven to be a viable and reliable solution in interference-free environments and in presence of Line-of-Sight (LOS) signals only. However, in urban canyons, multipath signals ...
Elahi, Seyed Moein (Graduate Studies, University of Calgary, Calgary, 2016)The geomechanical responses of a coal seam and its surrounding strata in underground coal gasification (UCG) are significant owing to the high temperature nature of the UCG process and the cavity evolution. In this thesis, ...
Wei, Xiaomeng (Graduate Studies, University of Calgary, Calgary, 2016-02-08)This study investigates a novel approach for identifying and localizing chemical leakages utilizing mesh-based electronic instruments and surface coating techniques. The proposed leak detection system includes one or ...