CO2 Corrosion Behaviors of Tubing and Casing Steels in Simulation Produced Water for Deep Natural Gas Wells
Authors
Nan Li, Dekui Xu, Wenhai Ma, Pingang Ma, Junliang Li
Corresponding Author
Nan Li
Available Online August 2015.
- DOI
- 10.2991/icaemt-15.2015.124How to use a DOI?
- Keywords
- CO2 Corrosion; Corrosion Products; Tubing and Casing Steels; Deep Natural Gas Wells; Xushen Gasfield
- Abstract
The influence of temperature and CO2 partial pressure on tubing and casing steels widely used in Daqing Oilfield including J55, N80 and P110 steels in simulation water for deep natural gas wells with CO2 corrosion was studied, using autoclave, Scanning Electron Microscope (SEM), Energy Spectrum Analysis (ESA), X-Ray Diffraction (XRD). The results show that the average corrosion rate of the test steel increases rapidly at first as temperature rises until 60 , then decreases rapidly as temperature continues to rise; the average corrosion rate increases rapidly as CO2 partial pressure rises until a peak is reached, then tends to be flat as temperature continues to rise; CO2 corrosion products are mainly FeCO3 and CaMg(CO3)2.
- Copyright
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Nan Li AU - Dekui Xu AU - Wenhai Ma AU - Pingang Ma AU - Junliang Li PY - 2015/08 DA - 2015/08 TI - CO2 Corrosion Behaviors of Tubing and Casing Steels in Simulation Produced Water for Deep Natural Gas Wells BT - Proceedings of the 2015 International Conference on Advanced Engineering Materials and Technology PB - Atlantis Press SP - 643 EP - 646 SN - 2352-5401 UR - https://doi.org/10.2991/icaemt-15.2015.124 DO - 10.2991/icaemt-15.2015.124 ID - Li2015/08 ER -