Corrosion inhibitor resisting CO2 corrosion for oil field


Application Number: 00109687
Application Date: 2000.06.21
Publication Number: 1277240
Publication Date: 2000.12.20
Priority Information:
International: C09K15/04;F16L58/00
Applicant(s) Name: Inst. of Petroleum Pipeline Material, China Petroleum & Natural Gas Corp.
Address:
Inventor(s) Name: Zhang Yufang;Lu Minxu
Patent Agency Code: 11215
Patent Agent: rong duizhang
Abstract The corrosion inhibitor includes sulfur-containing imidazoline derivative 25-40wt%, alkyl phosphate 20-30wt%, alkynol 5-15wt%, non-ionic surfactant 10-20wt% and solvent 20-30wt%. It can form one layer of efficient protecting film on the surface of metal pipe and equipment to prevent the corrosion of highly mineralized CO2 containing sewage to the surface. It may be used in oil well with relatively high temperature and pressure and other industrial equipment and has the features of less consumption, high efficiency,easy preparation and low cost.