Corrosion due to use of carbon dioxide for enhanced oil recovery. Final report. SumX No. 78-003

摘要: This study documents the specific effects of CO/sub 2/ on corrosion and identifies promising methods for controlling in fields using injection. Information has been assembled on: problems general, surface downhole specifically associated with enhanced oil recovery, to reduce environments. Corrosion mechanisms, kinetic behavior, various parameters by are presented this study. Engineering metals not attacked under field environments unless liquid water is also present. Plain low alloy steels mixtures water. Attack these bare may become serious at a partial pressure as 4 psi it increases although direct proportion. Fluid flow rate an important factor 2//water corrosion. Practically all stainless similar resistant alloys particularly subject alone, even high pressures. Elevated levels can aggravate corrosive other species such hydrogen sulfide, oxygen, chloride. Mixturesmore » 2/, carbon monoxide (CO), cause stress cracking plain steels. systems should be circumvented when possible avoiding combination components. Although cannot excluded throughout injection-oil production-CO/sub reinjection chain, air in-leakage minimized oxygen scavengers used remove any residual. Exclusion successful use control measures. A discussion given main including metal selection, protective coatings nonmetallic materials, chemical inhibition. (DLC)« less