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The cooling water system simulator is an automated pilot plant for evaluating anti-scaling, corrosion inhibitor and bio-fouling inhibitor chemicals in refinery cooling and bitumen extraction water systems which include heat exchangers and cooling towers. This paper describes the simulator's design, construction, modes of operation and commissioning.
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A forty foot well annulus simulator is used to determine the flow and fate of the applied chemical inhibitors for typical backside batch and flush application in a packerless completion. The delivery depends upon both chemical parameters such as density, viscosity, and surface tension as well as flush parameters including volume and rate.
Observations and guidelines to conduct hydrostatic pressure tests of pipelines and/or process equipment. Concerns for hydrostatic pressure tests relate to the water itself, including any suspended solids, dissolved oxygen, or any Sulfate Reducing Bacteria (SRB) or Acid Producing Bacteria (APB) present in the test water.
Initial investigations described at Corrosion 2011. This paper reports on development of a micelle detection instrument. Criteria for interpreting the presence of micelles will be reported and results of a simulated field study to investigate the link between inhibitor micelle presence and corrosion rate. Together with results from real field samples, this data will be presented as development of a new tool for field analysis of brines
The new passivation mechanism in steam-assisted gravity drainage (SAGD) process is discussed through theoretical approach in this paper. A corrosion mitigation program was implemented that included the pigging both slug and batch corrosion inhibitors chemistry analysis corrosion rate (CR) monitoring and non-destructive tests.
Corrosion tests have been carried out in dependence of important application parameters, applying electrochemical methods, beaker tests and long term tests in cooling circuit simulating devices. The results show excellent efficiency and significant synergies between the new substance and other inhibitors.
Controlled Humidity Protection (CHP) reduces corrosion d/t high relative humidity (exceeding 40%). Addition of the vapor phase corrosion inhibitors to the CHP provide a more effective corrosion protection. A dry air system can will not be able to prevent corrosion.
Scale inhibitor squeeze treatments have been applied for many decades to control inorganic scales in onshore/offshore production wells. A series of coreflood tests were conducted with reservoir carbonate cores, This paper presents field results and laboratory evaluation data for the application of corrosion inhibitors via the squeeze process.
This study examines the effectiveness of various types of corrosion inhibitors in a waterborne styrenated acrylic coating, based on salt fog results, (ASTM B117). All of the samples were made using high speed dispersion.
An analytical method using fluorescence spectroscopy has been developed to measure inhibitor concentration. It enables dye transfer methods and promises a greater degree of accuracy. The procedure can be performed in the laboratory or at the well site, and individual analysis can be done quickly.
This paper describes a method of exploiting the critical micelle concentration (CMC) of the corrosion inhibitors to show that the use of CMC can be used as a laboratory screening method for corrosion inhibitor selection.
Transportation infrastructure is built from steel and concrete. Concrete can be penetrated by aggressive chemical ions that may initiate steel corrosion. Migrating corrosion inhibitors (MCIs) show versatility as admixtures, surface treatments and in rehabilitation programs.