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Keywords: condensation rate
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Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13116
... conditions were included based on as-built data. The condensation rates along the length of the pipeline were calculated as output from the simulations. Several cases were simulated to cover turndown, normal and high flow rates at both winter and summer conditions for each field. The condensation rates were...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13303
... of pipelines. Depending on the production conditions (especially fluid temperature, flow regime, Water Condensation Rate (WCR), CO 2 /H 2 S content, organic acid concentration), it can lead to severe metal loss, localized corrosion and rapid pipeline failures [1-3]. Management of TLC requires its own set...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10964
.... The effect on TLC of various parameters like bulk temperature, condensation rate, organic acids, MEG and methanol was studied. Methanol was clearly the most important factor affecting TLC corrosion. Although the mass loss corrosion rates increased somewhat with methanol, the major effect...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11117
... are also more likely to suffer from TOL corrosion if the flow regime within the pipe is stratified. The rate of TOL corrosion is directly proportional to the condensation rates within the pipeline. When the condensation rate is low, dissolved iron in the condensed water will accumulate, thus increasing...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10823
... ABSTRACT The overall objective of the present research is to investigate the effect of operating parameters on the inhibition efficacy of decanethiol in top of the line corrosion (TLC). The effect of water condensation rates, monoethylene glycol (MEG), H 2 S and hydrocarbon on inhibitor...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11223
... chemistry texas 77084 Publication Division consideration permission prediction Houston manuscript evaluation glycol Modeling & Simulation Upstream Oil & Gas corrosion rate condensation rate tlc corrosion rate flow model 1 Evaluation of Top-of-Line Corrosion Model for Multiphase Oil...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9106
... Subsurface Corrosion frequency materials and corrosion Upstream Oil & Gas flowline corrosion riser corrosion resistance Publication Division top-of-the-line corrosion surface temperature corrosion rate condensation rate Probe Pipeline Corrosion well integrity texas 77084...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9337
... in the field have been documented,12-28 and lately more research has been carried out on this topic.2,8,27-40 In contrast to sweet TLC, the condensation rate is less important for sour TLC.1 For sour TLC the steel surface temperature is important, and recent literature suggests that steel temperatures around...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9419
... 2 S corrosion prediction model developed by the authors' organization. The TLC model determines the top of the line corrosion rate of carbon steel based on water chemistry and film-wise condensation rate. The effect of various glycols, such as Monoethylene Glycol (MEG), Diethylene glycol (DEG...
Proceedings Papers

Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7664
... was conducted to investigate the controlling parameters. The occurrence of localized corrosion could be very clearly correlated to the condensation rate, the gas temperature and the organic acid content. Additional statistical information related to the morphology of localized TLC features could be made...
Proceedings Papers

Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7891
... gas (CO2). The model predictions of condensation rate and MEG concentration in the condensing phase are compared with loop test results, showing good agreement. The results show that an increase of the MEG content at the bottom of the line decreases the water condensation rate and increases the MEG...
Proceedings Papers

Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7275
... in the bulk aqueous phase. The water condensation rates used in the experiments were calculated from multiphase flow simulations for the planned pipelines. The experimental results showed that the condensed water contained both MEG and acetic acid. With this low CO 2 partial pressure, the organic acids...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5809
... by using field data. Data collected from sweet wet gas lines that experienced TLC issues were analyzed, processed, and then used as an input for a mechanistic TLC predictive model to simulate the evolution of temperature, pressure, water condensation rates and TLC rate along the pipeline. The simulation...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5723
.... model validation tlc data collection flowline corrosion mechanism organic acid well integrity manuscript condensation rate field data subsurface corrosion upstream oil & gas artificial intelligence permission texas 77084 prediction corrosivity prediction validation houston...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-3807
... ABSTRACT A series of autoclave experiments were conducted in order to improve the understanding of how gas temperature and water condensation rate affects sour top of the line corrosion ( TLC ) of X65 steel. The experimental work was conducted in a 20L autoclave, especially designed for top...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4057
... ABSTRACT Many approaches have been used for modeling Top of Line Corrosion (TLC). One common principle is that TLC is limited by the amount of iron that can be transported with the condensed water. This means that the TLC rate is proportional to the condensation rate and proportional...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4382
... formation process has been studied in small scale experiments where carbon steel pipes are exposed to an aqueous phase and where various condensation rates are simulated by varying the replenishment rate of the test liquid. The experiments show that the organic acid in the condensing water is consumed...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2596
... of carbon dioxide, gas velocity and condensation rate.7 A complex interplay of these parameters leads to TLC. The effects of these parameters have been effectively discussed and are summarized as follows.8 The temperature gradient between the internal and external environments affects the condensation rate...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2591
... Division condensation rate Houston experiment 1 permission manuscript Top of Line Corrosion with High CO2 and Organic Acid Gaute Svenningsen, Martin Foss, Rolf Nyborg Institute for Energy Technology P.O. Box 40, NO-2027 Kjeller Norway Hiroshi Fukagawa, Iwan Kurniawan INPEX Corporation Jl. Jenderal...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2290
... concentration texas 77084 condensation rate pipeline design prediction permission pipeline materials and corrosion Upstream Oil & Gas Efficiency water condensation rate corrosion control South Creek Drive Houston corrosion allowance manuscript Design of Multiphase Offshore Gas Pipelines...

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