scholarly journals Characteristics Analysis and Corrosion Inhibition in Typical Produced Water of Jidong Oilfield

2021 ◽  
Vol 329 ◽  
pp. 01052
Author(s):  
Chen Dong
Keyword(s):  
Corrosion Inhibition ◽  
Water Samples ◽  
Corrosion Inhibitors ◽  
Inhibition Efficiency ◽  
Produced Water ◽  
Characteristics Analysis ◽  
Weight Loss Method ◽  
Ion Contents ◽  
Loss Method ◽  
Oilfield Water

The composition of oilfield water is complex and diverse. The development and application of corrosion inhibitors can effectively inhibit the corrosion of pipelines and equipment by oilfield water. The ions in produced water of Jidong Oilfield were determined by instrumental analysis and chemical analysis. Triazine prepared from ethanolamine and formaldehyde as corrosion inhibitor was evaluated by weight loss method. The corrosion inhibition experiments were carried out in ancient water samples, and the effects of concentration and temperature on corrosion inhibition were investigated. Finally, corrosion inhibitors were applied to the corrosion inhibition of produced water with different compositions in Jidong Oilfield, the corrosion inhibition of steel sheet was evaluated under different salinity conditions, and the effects of various ion contents in typical water samples and salinity on corrosion inhibition were analyzed. The experimental results show that the corrosion inhibition effect of triazine is better, and the product can be used in various water samples in oilfield with the inhibition efficiency above 85%.

scholarly journals Organic Phosphorus Compounds as Inhibitors of Corrosion of Carbon Steel in Circulating Cooling Water: Weight Loss Method and Thermodynamic and Quantum Chemical Studies

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Liang Liu ◽  
Ting-Ting Cao ◽  
Qi-Wei Zhang ◽  
Chong-Wei Cui
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Corrosion Inhibitors ◽  
Inhibition Efficiency ◽  
Organic Phosphorus ◽  
Cooling Water ◽  
Circulating Cooling Water ◽  
Weight Loss Method ◽  
Corrosion Inhibition Efficiency ◽  
Loss Method

Circulating cooling water plays an important role in industrial water use. In this study, the corrosion inhibition effects of PBTCA, HEDP, and ATMP organic phosphorus inhibitors were investigated using the weight loss method by varying the dosage of inhibitors, ClO2 concentrations, and pH values on carbon steel in recirculating cooling water with a low concentration of ClO2 solution. The results showed that the three corrosion inhibitors had a satisfactory corrosion inhibition effect and that corrosion inhibition efficiency is positively correlated with the concentration of organic phosphorus inhibitors and pH. The average corrosion inhibition efficiency of the three inhibitors was about 80% at the concentration of inhibitors = 35 mg/L, pH = 9.0, and the concentration of ClO2 = 7.0 mg/L, of which the single-phosphorus molecular corrosion inhibitor proved to be the best inhibitor. When the ClO2 concentration was 7 mg/L, the corrosion inhibition efficiencies of the three corrosion inhibitors were relatively stable. Using the density functional theory (DFT) algorithm in the Gaussian 09 program, the optimization calculation was completed by the B3LYP/6-31G (d, p) method at the microlevel. The molecular structures of the three organic phosphorus inhibitors and the number of phosphorus-containing atoms were compared to the sustained-release properties. Organic phosphorus inhibitors, as an electronic buffer, not only provided electrons but also received electrons. They formed a complex with iron and zinc ions in water in order to attach to the surface of the carbon steel and to alleviate corrosion. In addition, the adsorption with a metal surface followed the Langmuir adsorption isotherm.

Experimental Studies on Corrosion Behaviors of Casing Steel N80 in High Salinity of Brine

2014 ◽  
Vol 1081 ◽  
pp. 205-209
Author(s):  
Feng Lin ◽  
Ming Biao Xu ◽  
Yun Long Mu ◽  
Lei Wang
Keyword(s):  
Corrosion Inhibitors ◽  
High Salinity ◽  
Experimental Studies ◽  
Impact Factors ◽  
Operational Variables ◽  
Weight Loss Method ◽  
Corrosion Behaviors ◽  
Ion Contents ◽  
Loss Method ◽  
The Impact

Brine corrosion can remain a large obstacle to the rehabilitation project of Missan Oilfields in Iraq. To minimizecorrosion risks, the 13-3/8′′ casing steel, N80,has been employed to examine corrosion behaviors in simulated formation water (i.e., brine). The impact factors of corrosion such as temperature, ion contents, exposure time, and pH have been studied. Also, corrosion inhibitors available in brine have been screened by a static weight loss method. The results showed that effects of environmental and operational variables on N80 corrosion are fairly complicated; the corrosion inhibitor, HN-amph, exhibits excellent corrosion inhibition in brine. This work will provide important information for on-site application.

scholarly journals Influence of Benzotriazole on Corrosion Inhibition of Mild Steel in Citric Acid Medium

2010 ◽  
Vol 7 (3) ◽  
pp. 1090-1094 ◽  
Author(s):  
P. Matheswaran ◽  
A. K. Ramasamy
Keyword(s):  
Citric Acid ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
First Order ◽  
First Order Kinetics ◽  
Weight Loss Method ◽  
Corrosion Inhibition Efficiency ◽  
Loss Method ◽  
Kinetic Treatment

Benzotriazole an organic compounds has been studied as corrosion inhibition for mild steel in 1 N citric acid by weight loss method. The result showed that the corrosion inhibition efficiency of the compound was found to be varying with the temperature and acid concentration. Also it was found that the corrosion inhibition behaviour of benzotriazole is better when the concentration of inhibitor is increased. The kinetic treatment of the results shows first order kinetics.

scholarly journals Corrosion Inhibition and Adsorption Properties of Ethanolic Extract of Calotropis for Corrosion of Aluminium in Acidic Media

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Sudesh Kumar ◽  
Suraj Prakash Mathur
Keyword(s):  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Ethanolic Extract ◽  
Plant Part ◽  
Calotropis Procera ◽  
Acidic Media ◽  
Plant Parts ◽  
Weight Loss Method ◽  
Acid Environment ◽  
Loss Method

The corrosion inhibition of aluminium in sulfuric acid solution in the presence of different plant parts, namely, leaves, latex, and fruit was studied using weight loss method and thermometric method. The ethanolic extracts of Calotropis procera and Calotropis gigantea act as an inhibitor in the acid environment. The inhibition efficiency increases with increase in inhibitor concentration. The plant parts inhibit aluminium, and inhibition is attributed, due to the adsorption of the plant part on the surface of aluminium.

scholarly journals Coumarin-3-Amine as New Corrosion Inhibitor

2017 ◽  
Author(s):  
Ahmed Al-Amiery
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Corrosion Inhibitors ◽  
Inhibition Efficiency ◽  
Spectroscopic Techniques ◽  
Synthetic Compounds ◽  
Weight Loss Method ◽  
Organic Inhibitors ◽  
Loss Method

Corrosion inhibitors are the natural or synthetic compounds that have the ability to inhibit the average of corrosion and reduce the damage of the mild steel. Enormous organic inhibitors nowadays employed in the corrosion domain but excluded due to costly. Comparatively cheap, and stable organic compound, namely 3-((4-nitrobenzylidene)amino)coumarin, have been utilized as an excellent corrosion inhibitor in hydrochloric acid for mild steel. The inhibition efficiency has been figured regarding to weight loss method. The corrosion inhibitor was identified according to spectroscopic techniques namely Fourier transform infrared and nuclear magnetic resonance in addition to micro-elemental analysis. Inhibition efficiency for the studied inhibitor was 71.4% that, at the highest studied concentration.

scholarly journals Synergistic effect of ZnO nanoparticles with organic compound as corrosion inhibition

2020 ◽  
Author(s):  
Buraq T Sh AL-Mosawi ◽  
Mohammed M Sabri ◽  
Muhanad A Ahmed
Keyword(s):  
Weight Loss ◽  
Mild Steel ◽  
Corrosion Inhibitors ◽  
Inhibition Efficiency ◽  
Corrosion Process ◽  
Zno Nps ◽  
Weight Loss Method ◽  
Steel Surfaces ◽  
Loss Method ◽  
Isatin Derivative

Abstract In chemical manufactures, the corrosion inhibitors were added in order to reduce the corrosion of mild steel. Chemical molecules are often used on mild steel surfaces as portion of the latest finishing steps before painting and/or storage. Here, this work elucidated the utilization of an isatin derivative, namely, 3-((3-acetylphenyl)imino)indolin-2-one synergistic with zinc oxide nanoparticles for improving the impedance of mild steel (MS) against corrosion in 1.0 M hydrochloric acid using the weight loss method and scanning electron microscopy (SEM). Weight loss measurements demonstrated that the best 3-((3-acetylphenyl)imino)indolin-2-one concentration was 0.5 mM and the inhibition efficiency was 83% whereas the inhibition efficiency was 92% with addition of ZnO NPs. 3-((3-Acetylphenyl)imino)indolin-2-one retards the corrosion process at 300 K and demonstrates low inhibition efficiencies at 310, 320 and 330 K.

Electrochemical and XPS studies of alkyl imidazoline on the corrosion inhibition of carbon steel in citric acid solution

2016 ◽  
Vol 34 (5-6) ◽  
pp. 295-304 ◽  
Author(s):  
Dong Yang ◽  
Song Hui Liu ◽  
Yu Pei Shao ◽  
Shao Di Xu ◽  
Lu Lu Zhao ◽  
...  
Keyword(s):  
Citric Acid ◽  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Electrochemical Techniques ◽  
Acid Solutions ◽  
Xps Spectra ◽  
Carbon Steel Surface ◽  
Weight Loss Method ◽  
Loss Method

AbstractThe corrosion inhibition behavior of an imidazoline derivative, namely, 2-undecyl-N-carboxymethyl-N-hydroxyethyl imidazoline (UHCI) for carbon steel in 4 wt.% citric acid solutions was characterized by weight loss method and electrochemical techniques in conjunction with X-ray photoelectron spectrometer (XPS) technique. The inhibitor has a good anti-corrosion effect on the carbon steel in 4 wt.% citric acid solutions. The inhibition efficiency increases with UHCI concentrations from 0 up to 0.4 wt.%, yet declines a bit at 0.6 wt.% per contra with further augmentation of concentration. The inhibition efficiency declines with the rise of temperature from 20°C to 95°C, while it rises with the extension of soaking time from 2 h to 24 h. Two N1s peaks that appeared in XPS spectra give proof of UHCI inhibitor adsorbed on the carbon steel surface.

scholarly journals Influence of Formazan Derivatives on Corrosion Inhibition of Mild Steel in Hydrochloric Acid Medium

2009 ◽  
Vol 6 (s1) ◽  
pp. S438-S444 ◽  
Author(s):  
P. Venkatesan ◽  
B. Anand ◽  
P. Matheswaran
Keyword(s):  
Hydrochloric Acid ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
First Order Kinetics ◽  
Hydrochloric Acid Medium ◽  
Weight Loss Method ◽  
Corrosion Inhibition Efficiency ◽  
Loss Method ◽  
Kinetic Treatment

Formazan of benzaldehyde (FB) and formazan ofp-dimethyl amino benzaldehyde (FD) were synthesized. These compounds were studied as corrosion inhibitor for mild steel in 1.11 N hydrochloric acid by weight loss method. The result showed that the corrosion inhibition efficiency of these compounds was found to vary with the temperature and acid concentration. Also, it was found that the corrosion inhibition behaviour of FD is greater than that of FB. The kinetic treatment of the results gave first order kinetics. The relative corrosion inhibition efficiency of these compounds has been explained on the basis of structure dependent - electron donor properties of the inhibitors.

scholarly journals Corrosion Behaviour of Mild Steel in Acidic Medium in Presence of Aqueous Extract ofAllamanda Blanchetii

2011 ◽  
Vol 8 (1) ◽  
pp. 226-230 ◽  
Author(s):  
B. Anand ◽  
V. Balasubramanian
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibition ◽  
Aqueous Extract ◽  
Inhibition Efficiency ◽  
Corrosion Behaviour ◽  
Time Interval ◽  
Time Intervals ◽  
Steel Material ◽  
Weight Loss Method ◽  
Loss Method

The inhibition efficiency (IE) of an aqueous extract ofAllamanda blanchetii(Purple) in controlling corrosion of mild steel which has been evaluated by weight loss method in the absence and presence of corrosion inhibitor at different time intervals at room temperature. The result showed that the corrosion inhibition efficiency ofAllamanda blanchetiiwas found to vary with different time interval and different acid concentrations. Also, it was found that the corrosion inhibition behavior ofAllamanda blanchetiiis greater in sulphuric acid than citric acid medium. SoAllamanda blanchettican be used as a good inhibitor for preventing mild steel material. The surface analysis study confirms the corrosion of the mild steel and its inhibition by the inhibitorAllamanda blanchetii.

Study on Corrosion Inhibition of Compound Corrosion Inhibitor of Molybdate in Seawater

2012 ◽  
Vol 581-582 ◽  
pp. 755-758
Author(s):  
Ying Li Wei ◽  
Ya Qiang Tian ◽  
Yue Hua Wang ◽  
Xiao Hong Yang
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Corrosion Inhibitors ◽  
Electrochemical Polarization ◽  
Quaternary Compound ◽  
Weight Loss Method ◽  
Loss Method ◽  
Inhibition Performance

The corrosion inhibition performance of molybdate and molybdate compound corrosion inhibitor of carbon steel in seawater were tested using weight loss method, electrochemical polarization curve, and the quaternary compound molybdate corrosion inhibitor were made sure through the experiments. The experiment results show that the compound corrosion inhibitors have obvious synergistic corrosion inhibition effects in the proportion of 40 mg/L molybdate, 10mg/L HEDP, 4mg/L Zn2+ and 50 mg/L glucose acid salts.

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