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The cathodic protection design qualification certificate, cathodic protection construction grade 1 qualification certificate issued by China Industry Anticorrosion Technology Association and grade 2 qualification of anticorrosion insulation engineering contracting issued by Provincial Department of Construction are provided. The cathodic protection design, construction and testing of steel structures such as wellbore of oil well, pipeline and oil tank are carried out, including cathodic protection plan design, research development, engineering construction, cathodic protection business consultation and other services. Corrosion control is performed by effective cathodic protection measures. The service scope covers long-distance transmission pipeline, city gas pipeline, treatment plant, gas gathering station, petrochemical refineries, and down-hole casing fields. The following services are provided:

(a)Design of cathodic protection system;

(b)Construction of cathodic protection system;

(c)Periodic testing and full maintenance of cathodic protection system to ensure stable operation of system;

(d)Providing daily status analysis and evaluation report of cathodic protection;

(e)Cathodic protection technology consultation service

Applicable standards of cathodic protection:

GB/T21448 Specification of cathodic protection for underground steel pipeline

SY/T 0023 Test method for cathodic protection parameters of buried steel pipelines

SY/T 0017 Standard of D.C. drainage protection for buried steel pipelines

SY/T 00320 Standard of A.C. drainage protection for buried steel pipelines

SY/T 0036Design specification of impressed current cathodic protection for buried steel pipeline

SY/T 0047 Technical specification of internal cathodic protection systems in oil-treating vessels

SY/T 0087 Standard investigation method for corrosion and protection of steel pipelines and tanks