... (intrinsic) effect, but also the (extrinsic) effect from the macrocell electric fields on the distribution of chloride and hydroxide ions. Those factors are implemented in a tentative finite element multiphysics time evolution model, coupled with electrode reactions at the steel surface. Model viability...

.... Instantaneous Corrosion Rates from LPR Measurements The following reactions were considered to occur at the carbon steel surfaces: 2+ + 2 2 + 22 4 4 2+ 3+ + (1) (2) (3) Where Reaction (3) can occur on the electrode surface, forming scales with mixtures of ferrous and ferric oxides. Fe2+ oxidation can...

... speciation in acidic systems is demonstrated. The electrochemical module, which incorporates partial anodic and cathodic reactions, can model active corrosion, active-passive transition, as well as dissolution in the passive state. The model is shown to quantitatively predict the corrosion rates of two...

... reactions between the metal and its surrounding environment, commonly seawater in subsea applications. This environment acts as an electrolyte that can establish a potential difference between anodic and cathodic sites of the structure at the metal-environment interface. This potential difference prompts...

... that is formed by the reaction of iron with carbon dioxide, which can occur in the presence of water. This mineral can be found in subsurface formations, but it can also form because of corrosion of iron-based equipment or well construction materials. 3. Fe7S8 (Pyrrhotite) and FeS (Mackinawite) are iron sulfides...

...Paper No. C2024-20788 MARCH 3-7, 2024 | NEW ORLEANS, LOUISIANA Impurity Reactions in Gaseous and Liquid CO2 Streams Bjørn Helge Morland and Gaute Svenningsen Institute for Energy Technology Instituttveien 18 NO-2027- Kjeller Norway Johannes Sonke Shell Global Solutions International B. V. Grasweg...

... and electrochemical reactions occurring during Mg dissolution and concluded that the thermodynamics of Mg + indeed permit its participation in the process. Conversely, Gomes et al. 12 formulated a model incorporating two successive reactions (one involving the adsorption of the ion Mg + on the anodic surface...

... concrete structures and buildings. A field applicable (by brushing, roller coating, or spraying) patent-pending PVDF coating when applied on the outside of the reinforced concrete structure, can provide protection for preventing concrete from carbonation and other chemical reactions and protect the steel...

... h2s management subsurface corrosion well integrity subsurface storage geologist geology corrosion management riser corrosion materials and corrosion co 2 pipeline corrosion climate change configuration coating injection thickness thermoset coating corrosion resistance reaction...

..., Ohio University 342 West State Street Athens, OH 45701 USA ABSTRACT Refinery high temperature naphthenic acid corrosion is known to generate oil soluble iron naphthenates and solid iron oxide as corrosion products. Associated chemical reactions have been written for a long time but are barely...

... of only the polarization resistance (Rp) calculated from the slope. In addition, the Stern-Geary equation is a valid approximation only if one anodic and one cathodic reaction are present at the corrosion potential. An exact modified Stern-Geary equation was derived for cases where up to two cathodic...

... / steel interfaces. This paper presents an overview of the model and compares its predictions against a variety of experimental data that reproduce the conditions, the geometry, or both, found at the bottom of a PLP perforation. This 1D model considers diffusion and chemical reactions inside an inert hole...

.... riser corrosion production chemistry pipeline corrosion fat reaction application well integrity mineral materials and corrosion catalyst hydrogen hydrocarbon geology geologist fat corrosion acid corrosion oilfield chemistry flowline corrosion sulfide ffa pyrrhotite ffa corrosion...

... environments containing H2SO4 is more challenging. Chemical dissociation of H2SO4 includes the production of hydrogen ions and bisulfate ions that can further dissociate to produce sulfate ions as shown with the following equations:17 24 + 4 (1) 4 + 42 (2) As part of the corrosion reactions involving...

... chemistry pipeline corrosion peroxide ftir absorption protection curing time reaction wave number absorption rheometer efficiency flake storage modulus approx tan delta consumption reactive diluent adhesion Paper No. C2024-20934 MARCH 3-7, 2024 | NEW ORLEANS, LOUISIANA Unsaturated...

... diffraction were performed. Physicochemical parameters characterization by colorimetric methods on the samples was also done. The results suggest three potential deposition mechanisms: chemical reaction, condensate formation, and desublimation of sulfur. Each mechanism could interact with one or both...

... that contain the gas. Hydrogen can be absorbed due to its presence as a transmission gas or due to electrochemical reactions such as corrosion. Regardless of the absorption method, there is potential to have significant negative consequences. Specifically, hydrogen exposure can reduce the ductility...

... exposure filler impedance concentration reduction electrochemical impedance spectroscopy formulation corrosion protection reaction thickness resistance Paper No. C2024-21025 MARCH 3-7, 2024 | NEW ORLEANS, LOUISIANA UV-Curable Organic Coating for Corrosion Protection of Inner Surfaces...

... chemistry flowline corrosion reaction hardness performance test result manufacturer impedance conversion immersion evaluation test result west conshohocken international Paper No. C2024-20588 MARCH 3-7, 2024 | NEW ORLEANS, LOUISIANA Effect of Curing Time on the Performance of Novolac Internal...

... metathesis and is air stable. Ring opening metathesis polymerization (ROMP) is a process of one or more cyclic olefins transformation to polymer catalyzed by metal carbene compounds.2 The driving force of the reaction is relief of energy stored within the ring strain of cyclic olefins3 (e.g., © 2024...