000 02084nab a2200205 4500
005 20260520001100.0
008 260224s2012 xxu
245 0 0 _aCorrosion rate prediction in the liquid collection section of separating tanks
_bPart 1: Dependence on temperature, O2, pH, and superficial conditions
260 _a
_b
_cfeb. 2012
270 _a03/04/2012 ; 03/04/2012
300 _a11 p. ; 025006-1/025001-12
520 _aTranscripción del resumen del autor: The exploitation of oil and gas reservoirs produces oil-gaswater mixtures which are set apart in separating tanks. The main operating risk of these tanks is the presence of aggressive compounds, such as carbon dioxide (CO2) and hydrogen sulfide (H2S), which can cause corrosion in the tank wall, and in the pipes and equipment used in the downstream processes. To assess accurately the integrity of separating tanks, the prediction of the corrosion rate in their water collection section is necessary. In this work, modeling of the operating environments of separating tanks has been carried out from the results of corrosion tests performed using the polarization resistance (Rp) technique. Rp tests were conducted on a SA-516-G70 carbon steel (UNS K02700) using as a medium NACE 1D182 and NACE 1D196, two different brines, without H2S or CO2. The separate and combined effects on the corrosion rate of the corrosion product layers, and of the brine temperature, pH, and oxygen presence were investigated. After measuring the corrosion rate in each environment, mathematical models were proposed and fitted to the observed corrosion rate data. The validation of the proposed models was carried out by comparing their results with those of models reported in the literature, predictions from commercial corrosion-prediction software, and field-measured corrosion rate data.
581 _a2
773 0 _tCorrosion
_g68
942 _cARTICULO
100 1 _aMedina Huerta, J.M.
_952287
100 1 _aGodínez, J.G.
_952288
100 1 _aGonzález, J.L.
_952289
999 _c186960
_d186960