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- W2345622273 abstract "Abstract A common problem, in oilfield reservoirs is mineral scale deposition. The build-up of scale inside well bores and the surrounding reservoir causes millions of dollar in damage every year. The most common remedy is to treat the formation of such minerals with scale inhibitor chemicals in a squeeze treatment; which is performed periodically. One of the big challenges remains the real-time and on-site control of inhibitor concentration during production. A simple and accurate method to determine the concentration of inhibitors has been developed; this method is based on the use of luminescent tracers. The multiple lifetimes as well as the differences shown in the emission and excitation spectra of the tracers appear to be suitable for the luminescence detection. The increased signal to noise ration due to the suppression of the background resulting from the organic oil residues is used to measure the concentration of residual inhibitors in production waters. Furthermore, the use of a technique as versatile and simple as luminescence spectroscopy allows the online and/or on-site monitoring with very limited drawbacks. This paper describes the use of novel real-time scale inhibitor monitoring; this new technique will help to optimize the treatment rates of the scale inhibitor squeeze treatment. Introduction Limescale (calcium carbonate) that deposits on the surface of well bore will, if untreated, reduce the efficiency of the exploitation, inducing corrosion of the production chain and ultimately leading to appliance failure. Indeed, pipework scale reduces the available cross-section area, and fluids are affected by increased pipe wall friction. A larger, more power-consuming pump will be required to maintain throughput volumes, but this can only be a temporary solution to the problem. A plant that needs to be shut down for cleaning costs millions of dollar in damage every year (Moghadasi, J. et al. 2004-A). The formation of a thin uniform layer of scale or wax temporarily gathers the steel corrosivity, but at long-term the stagnant conditions of deposit and electrochemical reactions will corrode the steel surfaces. The fluid leaks as well as the equipment failure have been expected with potentially dangerous consequences. Performed periodically, squeeze treatment is one of the most common remedies to treat the formation of such minerals. Treatment options include inhibitor chemicals, descalers, ion exchange, physical cleaning such as pipeline pigging (Collins, I.R. et al. 2001)." @default.
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- W2345622273 date "2014-12-10" @default.
- W2345622273 modified "2023-09-23" @default.
- W2345622273 title "The Use of Fluorescent Tracers for Inhibitor Concentration Monitoring Useful for Scale Inhibitor Squeeze Evaluation" @default.
- W2345622273 doi "https://doi.org/10.2523/iptc-17933-ms" @default.
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