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Keywords: cathodic polarization
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Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12794
... ABSTRACT Environmentally assisted cracking of high strength PH nickel based alloys 725, 945X, and 955 were evaluated under subsea HPHT environments. The two primary environments of interest in this effort were in 3.5wt% NaCl, pH = 8.2 under cathodic polarization at low temperature 40°F...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12870
... the fact that seawater temperature is below 20°C, severe localized corrosion attacks have been observed after removal of the anodes. This presentation gives an overview of the outcome from a test program examining the effect of pre-cathodic polarization of 25Cr duplex stainless steel on critical crevice...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12957
... calcareous deposit coating deterioration organic coating disbonded area capacitance arc permission frequency area well integrity cathodic protection cathodic polarization Publication Division current density Houston temporary coating texas 77084 polarization manuscript Combined...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13000
... surface and then to evaluate its protectiveness against further corrosion. To reach this goal, two working electrodes were cathodically polarized (-200 mV versus OCP) for five days. Table 2 shows the experimental conditions used for this series of experiments. The corrosion rate was reduced significantly...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11030
... inhibitors and cathodic protection when applied jointly on an oxygen concentration corrosion macro-cell setup. The test results varied significantly between the three volatile corrosion inhibitors. One showed it had cathodic polarization effect and resulted in reduction of CP current requirement by 48...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11581
... of cathodic polarization during cathodic prevention of steel in concrete. Tests used concrete specimens, each with a cast-in steel plate, constantly exposed to a high-chloride environment. The specimens were polarized at 4 different levels ranging from open circuit to -400 mV vs Saturated Calomel Electrode...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11535
... and an adequate amount of absorbed hydrogen in both the SSR test and the accelerated fracture mechanics ISL and RD tests. These criteria are related to the measured threshold stress intensity factor for crack growth with cathodic polarization (K th ). The hydrogen embrittlement mechanism at the notch for a double...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9669
... oilfield chemistry complex reservoir Corrosion Management Corrosion Inhibition hydraulic fracturing high pressure high temperature hold time stable crack growth Production Chemistry Upstream Oil & Gas Susceptibility Publication Division texas 77084 cathodic polarization crack...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7861
... (SSR) tension testing of alloys under cathodic polarization is the most common testing method to determine a material’s susceptibility to hydrogen embrittlement in such environments. Hydrogen embrittlement testing of CRAs used in deep-sea wells normally involves electrolytic charging of a specimen...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5995
... houston flowline corrosion mild steel cathodically manuscript promotor riser corrosion texas 77084 steel cathodic polarization nacl mgcl 2 well integrity steel membrane permeation rate hydrogen permeation materials and corrosion pipeline corrosion subsurface corrosion...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-3948
... and UNS N09925 were found to be significantly less susceptible to this phenomenon. Test results are herein presented and discussed as a function of the material properties. Upstream Oil & Gas Susceptibility grain size Production Chemistry precipitation cathodic polarization representative...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4196
.... However, in mud there is no convection and the diffusion is limited. This may result in accumulation of hydroxide at the TSA-mud interface and activation of the TSA. The cathodic polarization may therefore result in decreased lifetime of the TSA in mud. The paper discusses corrosion rate of TSA...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11016
... cement formulation flowline corrosion materials and corrosion cement property construction materials cement chemistry Upstream Oil & Gas riser corrosion rebar well integrity reinforcement cathodic polarization Pipeline Corrosion Subsurface Corrosion casing and cementing...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10059
... Pipeline Corrosion riser corrosion flowline corrosion Subsurface Corrosion modeling soil resistivity predictability corrosion rate materials and corrosion well integrity soil analysis cathodic polarization polarization assessment Artificial Intelligence Upstream Oil & Gas...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09407
... Pipeline Corrosion materials and corrosion Upstream Oil & Gas water management riser corrosion criteria steel CSE polarization flowline corrosion Subsurface Corrosion cathodic protection contribution protection SRB cathodic polarization well integrity protection potential...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08072
... oxidation occurs. Electrons flow away from the anode in the external circuit. Corrosion usually occurs and metal ions enter solution at the anode. oilfield chemistry H2S management complex facility cathodic polarization Upstream Oil & Gas cathodic protection mV polarization criterion...
Proceedings Papers
Matilde F. de Romero, Oladis T. de Rincón, Mónica Sanz, Brendy Rincón, Lisseth Ocando, William Campos, Mariangela Bracho
Publisher: NACE International
Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08504
... management cathodic protection steel evaluation Compound metallic surface cathodic polarization depolarization polarization interface cu cuso 4 Copyright Government work published by NACE International with permission of the author(s). The material presented and the views expressed in this paper...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06338
... cathodic polarization Ag AgCl footer substructure current density polarization resistivity oilfield chemistry H2S management SBA Bridge substructure concrete resistivity galvanic anode Bahia Honda bridge anode elevation UTILITY OF BULK SUBMERGED GALVANIC ANODES FOR BRIDGE SUBSTRUCTURE...
Proceedings Papers
Matilde de Romero, Lisseth Ocando, Oladis de Rincón, Junire Parra, Rosmery Ruiz, Mariangela Bracho, Gustavo Romero, Alvaro Quintero
Publisher: NACE International
Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06526
... Pipeline Corrosion oilfield chemistry concentration water management Production Chemistry growth curve biofilm permeation current flowline corrosion Artificial Intelligence Upstream Oil & Gas cathodic polarization protection bacteria experiment bacterial growth Desulfovibrio...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06040
... temperature FBE products were compared to standard FBE to determine just how much improvement would be obtained for the high temperature products over the standard FBE. Immersion tests with and without cathodic polarization of the test samples was performed to compare the effects on adhesion, time...
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