... 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...

... 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...

... 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...

... 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...

... 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...

... = 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...

...) 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...

... 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...

... 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...

... resistivity and concentration polarization of the cathodic reaction did not seem to be dominant factors in mitigating corrosion. INTRODUCTION Segmental bridges use Post Tensioned Tendons (PTT) made of high strength steel placed inside ducts filled with cement grout, which protects the steel from corrosion...

... electrochemical analysis indicate that the effect of residual elements (RE) on HF acid corrosion strongly depends on the HF acid concentration. In this paper, the local HF acid concentration at a refinery HF alkylation unit was studied and analyzed. HF-H 2 O binary phase diagram at different pressures were...

... integrity flowline corrosion Subsurface Corrosion chloride level calculation permission manuscript electrode macrocell development Publication Division concentration application macrocell current uhpc uhpc repair repair concrete substrate concrete rebar texas 77084 Houston repair...

... integrity waste management materials and corrosion riser corrosion Pipeline Corrosion Subsurface Corrosion interstitial liquid steel permission Corrosion Management Publication Division specimen H2S management concentration carbon steel flowline corrosion Production Chemistry manuscript...

... corrosiveness, many efforts are dedicated to study the actual H2S concentration in the pipe annulus. The data presented in the literature points to considerably lower H 2 S concentrations than those predicted based on traditional annulus permeation models. The consequences of these studies have direct impact...

... using the “pretreatment - challenge” test protocol. According to this protocol FeS scales were formed on metal samples from mercaptans/mercaptans and sulfides on different ratios/concentrations in the presence of NAP acids at high temperature. Further, preformed scales were exposed to a constant NAP...

... disbondment must grow to a certain size before the swelling stress in the coating can cause buckling of the FBE film. Pipeline Corrosion riser corrosion defect size piping design Upstream Oil & Gas blister flowline corrosion piping simulation concentration Publication Division FBE coating...

... passed or becomes diluted to more tolerable concentrations. This scenario, over time, would select for this population of bacteria to become the majority and render the microbiocide program ineffective. INTRODUCTION Field Observation An oilfield, which was experiencing a high number of failures...

..., which are different from the general 3D conditions. materials and corrosion well integrity texas 77084 Pipeline Corrosion riser corrosion bobaru metals & mining Subsurface Corrosion Publication Division flowline corrosion Modeling & Simulation concentration boundary condition...