... = 4.5) at 25°C. Linear polarization resistance (LPR) measurements were conducted to determine the corrosion rate (CR) over a wide range of CI concentrations, from which surface saturation concentration and surface coverage values were extracted. Kinetic parameters for adsorption (kA, kD, and KAD) were...

... concentration. Most closed loops have a chloride concentration less than 50ppm. Typical temperatures encountered in closed loops vary, but in general temperatures are 35 80 °C. Closed loops are constructed mostly with carbon steel, stainless steel, and copper alloys, however the use of aluminum alloys...

... concentration of iron can release from tubular due to severe corrosion during acid injection, especially for the high-temperature reservoir. Minor iron carbonate could deposit at the initial stage of acid injection due to low the pH of spent acid. However, sever iron carbonate can precipitate when spent acid...

... Abstract The combination of phosphorus and zinc is mainly used as the carbon steel corrosion inhibitor for cooling water systems in the industrial plants such as petroleum refining or petrochemical plants. Moreover, treatments with high-concentration phosphorous and zinc are also applied...

... of the physicochemical aspects on the corrosion of carbon steels in the high-pressure environments associated with CO2 transmissions pipelines. The effect of flow on the corrosion of X65 carbon steel was investigated in a series of autoclave tests with different combinations of impurity concentrations in supercritical...

... products have product-specific behavior that needs to be identified and captured as input to the model a) Required CI concentration in the water phase [CI]w, should be derived from the CI qualification program and results with a CI injection rate that ensures it. b) Distribution of CI to the water phase...

... the highest amount of extrinsic ash and the second highest amount of intrinsic silica. An even higher amount of intrinsic silicon was found in the needles. Determination of the total ash concentration is a somewhat controversial issue in that the conventional approach involves burning the biomass...

... corrosion inhibitor oil phase composition responsibility retrieval system fraction permission water volume fraction means partition coefficient publication corrosion management concentration water phase rights apparent partition coefficient 16864 Partitioning of Multi-Component Surfactants...

...) technique was used to evaluate the environmental hydrogen embrittlement susceptibilities (EHE) of the materials by in-situ charging of hydrogen at a cathodic potential of -1.2VSCE. Microstructural characterization was performed using TEM. Stress and hydrogen concentration distributions at the time...

...-P coatings is inhibited due to fracture and cracking by the impact of erosive particles in the process streams. This study involves the preparation of graphene incorporated Ni-P coatings by adding various concentrations of graphene in Ni-P plating bath under stirring conditions. The solid particle...

... concentration (non-ideality) was investigated on the solubility of FeCO3 layer. After a layer of FeCO3 was formed on a gold coated crystal, NaCl was incrementally added into the solution and the mass change of the FeCO3 layer was measured with an Electrochemical Quartz Crystal Microbalance (EQCM). It was found...

... mechanical properties. The microstructure of a material can be altered after a thermal or mechanical treatment resulting in new properties. metals & mining H2S management concentration corrosion test Corrosion Inhibition Upstream Oil & Gas specification weld metal Production Chemistry...

... in regulations resulted in accelerated corrosion of electronic equipment due to banned materials. industrial gases riser corrosion flowline corrosion Subsurface Corrosion concentration severity level Pipeline Corrosion well integrity disadvantage paper mill manuscript Publication Division...

... or supercritical with increasing pressure, it will lead to different interaction with water, i.e. CO 2 solubility in water will not follow Henry’s law in liquid or supercritical CO 2 conditions, which results in changing water chemistry. 14 Pipeline Corrosion riser corrosion concentration Modeling...

... remediation. Experiments were designed to measure biocide concentration as a function of time in the presence of dissolved sulfide using high performance liquid chromatography (HPLC) to determine the stability of various biocides. In these experiments, dissolved sulfide concentrations were also measured...

.... The study was done in a 193.7 mm (7.625 in) horizontal pipe with mixture velocity of 4.5 and 7 m/s at solids concentration of about 20 v/v% and dissolved oxygen concentration of 1.0 ppm. Our proposed novel modeling approach results were found to be in reasonable agreement with measured data, and can easily...

... that are often misleading and inaccurate due to basic assumption of the test and users attempts to stream line the method. Other techniques are used to measure bacteria concentrations include adenosine triphosphate (ATP) and nucleic acid testing. However, these methods also have drawbacks including accuracy...

... Production Chemistry Pipeline Corrosion Directional Drilling well integrity Upstream Oil & Gas concentration biofilm riser corrosion biocide hdd fluid lipase hdd Corrosion Management Effectiveness fluid lipase hdd fluid hdd Corrosion Inhibition oilfield chemistry drilling operation H2S...

... & mining riser corrosion reactor materials and corrosion Upstream Oil & Gas flowline corrosion Subsurface Corrosion concentration inlet texas 77084 Publication Division Pipeline Corrosion well integrity corrosion rate st reactor Corrosion Testing Houston weight loss analysis...

... of a leak in the weld. The original header pipe had been in service for more than 20 years. One well was identified, not only as a large water producer accounting for roughly 25% of the produced water, but also contained elevated concentrations of acetate (> 2,000 mg/l). Weld comparisons of the original...