Study on Corrosion Protection of Downhole Tools By Flue Gas Recovery of CO2 With Steam Trailing Injection
Injecting flue gas recovery CO2 can effectively improve the recovery rate and has the environmental significance of reducing carbon emissions,but there is a serious corrosion risk,for an oil well in Bohai Sea flue gas recovery CO2 and steam injection program,to carry out corrosion experiments of downhole tools 20Cr13,42CrMo,25CrMnMo and ZG35,and then carry out corrosion inhibitor experiments and material upgrading experiments.Then,corrosion inhibitor experiments and material upgrading experiments were carried out,and anti-corrosion means under CO2 flue gas recovery and steam accompanying injection conditions were proposed.
flue gas recovery of CO2steam accompanied injectioncorrosion experimentsmicroanalysis