... profilometry after corrosion products were removed. Results showed that no corrosion was observed in the supercritical CO2 with 650 ppm of water, 50 ppm SO2, and 100 ppm NO, but corrosion occurred when SO2 concentration was increased to 4500 ppm and 40,000 ppm of O2 was added to the system. The presence...

... precipitation Publication Division precipitate Houston dosage asphaltene inhibition mg 2 PPM silicate inhibitor adjustment silicic acid manuscript acid bhmtpamp molybdate-reactive silica Control of Metal Silicate Scaling by Chemical Additives Konstantinos D. Demadis,1 Argyro Spinthaki,1...

... pools in diatoms. Si storage pools in diatom cells, if present, provide Si for the production of new valves.7 The reported concentrations up to ~ 300 mM/22,500 ppm intracellular Si within the storage pool8 strongly exceed the solubility of monosilicic acid (~ 2 mM/150 ppm, pH < 9).9 Si species...

... and pitting corrosion of carbon steel in different H2S- containing brines. EXPERIMENTAL PROCEDURE The experiments were conducted in a 1M NaCl and Forties brine containing ~3000 ppm of Ca2+, ~1200 ppm of Mg2+, ~52 ppm Ba2+ and ~150 ppm Sr2+ at 80°C with emphasis on investigating corrosion product formation...

... Sulfide manuscript injection fluid texas 77084 Wellhead Houston sulfidogenesis Publication Division permission compound 2 reservoir riser corrosion Corrosion Management PPM reservoir souring application microbial population Field Trial Findings of a Novel Sulfidogenesis Inhibitory...

... and in a combination product, conclusively stimulated sporulation. Doses greater than 50 ppm allowed the endospore-capable Clostridium to sporulate rather than perish. In field scenarios where endospore-producing bacteria are present, these spores will rapidly return to vegetative cells once the chemical has either...

...). Upstream Oil &amp; Gas texas 77084 Houston water management concentration carbon steel cyanide wash water injection system injection enhanced recovery PPM permission manuscript water injection waterflooding Publication Division wash water injection corrosion control hydrogen Impact...

... 77084 corrosion product Houston metals &amp; mining riser corrosion PPM water content autoclave water-saturated supercritical co 2 localized corrosion rate ABSTRACT Corrosion experiments were performed on X65 carbon steel in water-saturated supercritical CO 2 (SC-CO 2 ) and under...

... minimum effective concentration the WAs became ineffective at improving CI performance. Tests using the best performing CI, at 100, 1,000, and 3,000 ppm, showed that the product must be applied above its minimum effective dosage to perform adequately. The best performing CI has a long history in sour...

... nutrients present in the fluids and reservoir to produce H 2 S that will move through the reservoir to a producing well and mediate its corrosive/toxic effects. enhanced recovery Upstream Oil &amp; Gas souring reservoir souring efficacy oilfield chemistry Production Chemistry PPM sulfide level...

... to 90oC. After 24 h the oxygen concentration was measured using CHEMetrics reagent ampoules giving a concentration of around 40 ppb. Before placing (flushed mounted) the steel samples in the test section, 81 mL of acetic acid (500 ppm of free HAc) were added to the system. Afterwards, CO2 was injected...

... was used to determine the dominant aqueous reactions that may contribute to the corrosive environment. This paper outlines the test protocols and results of the lab tests as well as the aqueous modeling. According to the test results and aqueous simulations, the field dose rate of 49 ppm SBS appears...

... materials and corrosion concentration water management Upstream Oil &amp; Gas flowline corrosion Artificial Intelligence PPM Pipeline Corrosion riser corrosion Shewanella microorganism biocide permission Microbiologically desulfurican diamine texas 77084 Houston Microbiol od...

... Composition: Cationic and anionic analysis of the sea water is given in Table 2. Analysis of sea water indicates presence of 20590 ppm of chloride ions. These largely contribute in enhancing pitting corrosion. It has been found that the corrosion rate increase with increasing chloride content over the range...

...-nitrilopropionamide (DBNPA). Tests have been carried out with and without the presence of a sulfite oxygen scavenger. Sessile microorganisms were grown in biofilms on carbon steel studs and exposed to isothiazolinone at 100, 200, 300 and 400 ppm and DBNPA at 100 ppm and 200 ppm, in the presence and absence...

... sulfur compound manuscript PPM texas 77084 scavenger temp partition coefficient value Houston location 1 FACTORS AFFECTING VAPOR PHASE H2S CONCENTRATIONS IN ASPHALT AND MITIGATION VIA SCAVENGERS Kyle Cattanach, Weldon Cappel, Don Wolfe Baker Hughes Incorporated 12645 W. Airport Blvd. Sugar...

... sulfide production is an important consideration for preventing another corrosive biotic activity. enhanced recovery H2S management incubation oilfield chemistry Corrosion Management reservoir souring Workplace Hazard Production Chemistry PPM microbe Sulfide texas 77084 permission...

... Oil &amp; Gas emulsion Publication Division Workplace Hazard Refinery Operation Production Chemistry Corrosion Management texas 77084 corrosion rate Houston hydrogen sulfide scavenger Treatment Plant manuscript high temperature non-triazine permission fouling coupon PPM triazine...

.... They perform at part per million (ppm) levels, forming a protective film which prevents the corrosive species contacting the pipe surface. 3 Selection of the most appropriate inhibitor for a system typically begins in the laboratory using the following sequence: 1) Testing is performed to assess the baseline...

... of detail as chloride-only WFGD slurries. Previous studies in chloride-rich WFDG slurries concluded that materials with a PREn less than 46 can experience aggressive crevice corrosion attack at chloride ion (Cl – ) concentrations near 10,000 ppm.[1] Corrosion Inhibition Production Chemistry chloride...