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Keywords: concentration
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Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16531
.... Results show iron carbonate deposition during acid stimulation is a corrosion induced scale issue. A high concentration of iron can release from tubular due to severe corrosion during acid injection, especially for the high-temperature reservoir. Minor iron carbonate could deposit at the initial stage...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16602
... Abstract The combination of phosphorus and zinc is mainly used as the carbon steel corrosion inhibitor for cooling water systems in the industrial plants such as petroleum refining or petrochemical plants. Moreover, treatments with high-concentration phosphorous and zinc are also applied...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16864
... chemistry of surfactant corrosion inhibitors are discussed in Woollam et al., and Zhu et al. and summarized in Figure 1.2,3 In the discussion and in the model development it is assumed only the partition coefficient, Po/w , characterizes the ratio of the concentration of a given component in the oil versus...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16887
... step load (ISL) technique was used to evaluate the environmental hydrogen embrittlement susceptibilities (EHE) of the materials by in-situ charging of hydrogen at a cathodic potential of −1.2V SCE . Microstructural characterization was performed using TEM. Stress and hydrogen concentration...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16927
... flowline corrosion riser corrosion normal impact angle graphene pipeline corrosion well integrity concentration retrieval system coating permission subsurface corrosion ampp phosphorous material protection materials and corrosion corrosion resistance erosion rights ni-p coating...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16964
... Abstract The effect of NaCl concentration (non-ideality) was investigated on the solubility of FeCO 3 layer. After a layer of FeCO 3 was formed on a gold coated crystal, NaCl was incrementally added into the solution and the mass change of the FeCO 3 layer was measured...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16443
... for this methodology development in an aqueous environment of 5 wt.% NaCl (pH = 4.5) at 25° C . Linear polarization resistance (LPR) measurements were conducted to determine the corrosion rate (CR) over a wide range of CI concentrations, from which surface saturation concentration and surface coverage (?) values were...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16465
... concentration. Most closed loops have a chloride concentration less than 50ppm. Typical temperatures encountered in closed loops vary, but in general temperatures are 35 – 80°C. Closed loops are constructed mostly with carbon steel, stainless steel, and copper alloys, however the use of aluminum alloys...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16656
... of impurity concentrations in supercritical CO 2 condition (8 MPa and 35°C). The corrosion rate of samples was determined by weight loss measurements. The surface morphology and the composition of the corrosion product layers were analyzed by using surface analytical techniques (SEM and EDS). Localized...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16704
... recovery pipeline corrosion corrosion inhibition materials and corrosion subsurface corrosion production chemistry h2s management upstream oil & gas riser corrosion corrosion management flowline corrosion oilfield chemistry well integrity ampp concentration material protection...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16726
... and corrosion well integrity upstream oil & gas fast pyrolysis ampp retrieval system biomass rights concentration steel biomass sample examination characterization compound composition renewable energy permission corrosivity means u-bend sample material protection responsibility...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12767
... lying untapped and speculated to contain high concentrations of CO 2 and H 2 S. 3,4 The exploitation of oil and gas fields containing high concentrations of acid gases requires materials that can perform in harsh environments without failure. These materials need to provide adequate life without...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12743
... concentrations of sulfate (up to 27 mM) that can enhance the growth of sulfate-reducing bacteria (SRB) in the reservoir. Biological souring is a serious problem in the oil and gas industry because it deteriorates the quality of crude oil and increases both the environmental threat and production cost 2...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12854
... in environments that contain H 2 S, particularly in relation to the susceptibility to sulfide stress corrosion cracking (SSC) assisted by H 2 S. The objective of the study is to evaluate the effects of temperature, H 2 S, and Cl - concentration on the pitting onset of pitting and the likelihood of SSC. Using...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12796
... temperatures up to 80°C. A series of small scale testing were performed to understand the material properties under different conditions (temperature, oil saturation, oil/water concentration etc.). Performance properties of typical high-density polyethylene were benchmarked against a proposed raised...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12744
... to over 99.0 %. The indolizine derivative could display an excellent protection performance at a much lower concentration. Compared with BQC, the active adsorption sites in indolizine derivatives are enhanced and consequently the inhibition is increased. The indolizine derivatives exhibit an enlightening...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12876
... electrochemical activity of these species. flowline corrosion Subsurface Corrosion acetic acid Artificial Intelligence Upstream Oil & Gas Pipeline Corrosion riser corrosion materials and corrosion well integrity weak acid kahyarian mild steel concentration metal surface acid reduction...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12763
... and aggressive process environments. For this purpose, the model calculates the corrosion rates, corrosion potential and repassivation potential as a function of temperature, alkalinity, pH, partial pressure of gases (including H 2 S), and concentrations of various aggressive species. The corrosion rates...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12817
... ABSTRACT The influence of mono ethylene glycol (MEG) on the precipitation of calcium carbonate was investigated at constant supersaturation, 25°C, pH 8.5. Seeded and unseeded experiments were done in aqueous supersaturated calcium carbonate solutions containing MEG over the concentration...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12835
..., and enlarges as well as creates new pores by dissolving the rocks and thus increases the oil recovery [1,2]. In acidization process hydrochloric acid (HCl) in the concentration of 15% is most commonly used [3, 4] because of its economical nature. Unfortunately, acid causes the corrosion of the well pipelines...

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