Comparison of Corrosion Behavior for J55 Carbon Steel in CO2/30% Crude Oil/Brine and CO2/Brine Solution

2019 ◽  
Vol 11 (2) ◽  
pp. 249-255 ◽  
Author(s):  
Hai-Hao Bai ◽  
Yong-Qing Wang ◽  
Yun Ma ◽  
Rui Wang ◽  
Ning-Sheng Zhang
Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2374 ◽  
Author(s):  
Haitao Bai ◽  
Yongqing Wang ◽  
Yun Ma ◽  
Peng Ren ◽  
Ningsheng Zhang

This study aimed to evaluate the corrosion properties of J55 carbon steel immersed in CO2/crude oil/brine mixtures present in the wellbores of CO2-flooded production wells. The main corroded position of wellbore was determined and wellbore corrosion law was provided. Corrosion tests were performed in 30% crude oil/brine solution under the simulated temperature (30–80 °C) and pressure (2–15 MPa) conditions of different well depths (0–1500 m). The corrosion behavior of J55 carbon steel was evaluated through weight-loss measurements and surface analytical techniques, including scanning electron microscopy, energy dispersive spectrometer, X-ray diffraction analysis, and optical digital microscopy. Corrosion rate initially increased and then decreased with increasing well depth, which reached the maximum value of 1050 m. At this well depth, pressure and temperature reached 11 MPa and 65 °C, respectively. Under these conditions, FeCO3 and CaCO3 localized on sample surfaces. Microscopy was performed to investigate corrosion depth distribution on the surfaces of the samples.


2015 ◽  
Vol 1115 ◽  
pp. 223-225
Author(s):  
Mohammad Zakaria ◽  
Suryanto ◽  
Irfan Hilmy

Enhanced Oil Recovery (EOR) is a technique used in oil and gas industries to increase the amount of crude oil production by injection of brine, a mixture of surfactant, water and seawater. As the results, crude oil contains brine which is corrosive. Surfactant is used to lessen the corrosion effect in addition to increase flowing of oil. In this study, the effect of surfactant on corrosion behavior of carbon steel in simulated enhanced oil recovery crude was investigated. Autoclave machine was used to perform corrosion experiment in the oxygen free environments. Corrosion rate was measure using weight loss method. The results show that surfactant reduces corrosion rate of carbon steel from 0.061 mm/y to 0.042 mm/y and the corrosion type on carbon steel was uniform corrosion.


2008 ◽  
Author(s):  
Yutaka Yokoyama ◽  
Rieko Takahashi ◽  
Hidekazu Asano ◽  
Naoki Taniguchi ◽  
Morimasa Naito

2015 ◽  
Vol 56 (7) ◽  
pp. 1107-1111 ◽  
Author(s):  
Soon-Hyeok Jeon ◽  
Geun-Dong Song ◽  
Do-Haeng Hur

2009 ◽  
Vol 417-418 ◽  
pp. 417-420 ◽  
Author(s):  
Shigenobu Kainuma ◽  
Kunihiro Sugitani ◽  
Yoshihiro Ito ◽  
In Tae Kim

The purpose of this research is to propose a method for evaluating the time-dependent corrosion behavior of carbon steel plates using an atmospheric corrosion monitor (ACM) corrosion sensor consisting of a Fe/Ag-galvanic couple. Atmospheric exposure tests were carried out on steel plates for periods of 6, 12, and 24-months on the island of Okinawa in Japan. The Specimens were mounted on racks at angles of 0, 45 and 90 to the horizontal to obtain corrosion data in various corrosive environments. In addition, the environments of the skyward- and groundward-facing surfaces of the specimens were monitored using ACM sensors. The sensor outputs were recorded during the exposure tests.


2013 ◽  
Vol 60 (2) ◽  
pp. 100-105 ◽  
Author(s):  
Jiayuan Hu ◽  
Shun‐an Cao ◽  
Jianli Xie

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