.... Nitrate addition after SRB growth (at day 28, N 28 ) successfully remediated the sulfide produced by SRB, but no significant reduction in sulfate was observed subsequently. In the N 28 experiment might be the result of the role of Arcobacter sp., which are nitrate-reducing sulfide-oxidizing bacteria...

... guidance, including response functions and a classification schema (C1 thru C5) for estimating corrosion risk as a function of three variables: weather (temperature and humidity), dry deposition of sulfides, and dry deposition of chlorides. Climate data is widely available but dry deposition data is either...

... ABSTRACT Corrosion products could have a significant impact on the corrosion process of carbon steel in H 2 S environment. It is widely believed that the different iron sulfides have different effects due to their distinct physicochemical properties. Therefore, an in-depth knowledge...

... that changes in the HS- bond length denote HS- reactivity and the subsequent production of sulfides which are the main by-products of MIC. This study also shows how changes in temperature impact HS- reactivity and thus MIC activity. Key words: Molecular model, microbiologically influenced corrosion, pitting...

... Corrosion resistant alloys (CRAs) have been used in exploration and production fields which contain high pressure, high temperature and significant amounts of hydrogen sulfide, carbon dioxide and chloride ions. As exploration for High-Pressure High-Temperature (HPHT) hydrocarbon reservoirs with corrosive...

... deposit corrosion rates for API X-65 carbon steel when the deposit consisted of iron sulfide (FeS) than for sand in a 50%H 2 S/50%N 2 environment. In addition to only H 2 S, when acid gases (H 2 S and CO 2 ) are present in the system the corrosion mechanism becomes more aggressive due to lower pH...

... is biotic reservoir souring. Reservoir souring can be minimized by proper treatment of injection water to control sulfate- reducing bacteria (SRB). However, control of this process is often lost due to unintended interaction of the biocidal active species with hydrogen sulfide resulting in the deleterious...

... ABSTRACT Due to its contribution to microbiologically influenced corrosion and potential HS&E consequences, hydrogen sulfide (H 2 S) presents many challenges to oil and gas production operations. Microbiologically generated H 2 S is often more difficult to address, because...

... A Review of Naphthenic Acid Corrosion and Sulfidic Corrosion in Crude Oil Refining Applications Yuhchae Yoon Honeywell Process Solutions 11201 Greens Crossing Blvd. Suite 700 Houston, TX 77067 Sridhar Srinivasan Honeywell Process Solutions 11201 Greens Crossing Blvd. Suite 700 Houston, TX 77067...

... widened with 13 3/8” casing and 9 5/8” slotted liner. This prolonged the workover interval to over a year up to two years. The need for workover diminished gradually as the geothermal reservoir degassed, see Figure.3. separator moisture separator Sulfide manuscript geothermal reservoir Reykjane...

... products can influence the extent of the damage. Thus the iron sulfide (FeS) scales formed as sulfur reacts with iron can hinder the NAP acid diffusion to the metal limiting their corrosive effect. The FeS scale properties are influenced by different factors such as the types of sulfur compounds in oil...

... of sulfide and thiosulfate on the SCC behavior was investigated up to levels of 15.6 mM S 2- (500 mg/L) and 5.35 mM S 2 O 3 2- (600 mg L -1 ), respectively. INTRODUCTION In all nuclear power generating countries, the production of high-activity, long-lived radioactive waste is an unavoidable...

... ABSTRACT Deposition of inorganic mineral scale on downhole completion equipment contributes to significant downtime and loss of production within the oil and gas industry. High temperature/high pressure (HT/HP) fields have reported build-up of lead sulfide (PbS) scale as a consequence...

... materials and corrosion Upstream Oil & Gas Publication Division Subsurface Corrosion mackinawite immersion time texas 77084 steel Pipeline Corrosion well integrity corrosion rate solid-state reaction sour corrosion manuscript Sulfide Houston permission initial stage...

... ABSTRACT The corrosion of carbon steel in environments containing hydrogen sulfide (H 2 S) is a critical issue to the oil and gas industry. Although considerable research efforts have been carried out, there is not yet a complete mechanistic study for the scale formation and growth kinetics...

... and cathodic protection is supplemented. The uniquely severe environment is defined (in Section A.3 of AWWA C105) as soil corrosivity of equal or less than 500 ohm-cm; anaerobic condition in which SRB thrive; low or negative redox potentials and the presence of sulfides; and salt/brackish water tidal areas...

... materials and corrosion Upstream Oil & Gas test solution crevice condition Houston inoculation event permission SRB Pipeline Corrosion well integrity manuscript Ennoblement texas 77084 sulfate day 16 crevice environment Publication Division Sulfide test condition bacteria...

... and monitoring of hydrogen sulfide that can be generated by sulfate reducing bacteria, the main culprits of MIC. The single-walled carbon nanotubes (SWCNT s) are functionalized by a conductive polymer - a polythiophene derivative, which enables the formation of carbon nanotube-polymer nanocomposite sensing layer...

... Impact of Novel Sulphidogenesis-Inhibitory Chemistries on Souring and MIC Brett Geissler and Alicia Jones Nalco Champion, an Ecolab Company 11177 South Stadium Drive Sugar Land, TX, 77478 USA ABSTRACT Hydrogen sulfide (H2S) generation by sulfur-compound reducing microbes is one of the central...

... a bedded structure. According to the EDS and XRD results, the corrosion products of the uniform surface and the unbroken part of the hillock were sulfide which contained Fe 7 S 8 and (Fe,Ni) 9 S 8 . The other part of the hillock was only Fe 7 S 8 and the core was (Fe, Mn)CO 3 . The element Cl appeared...