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Offshore drilling platform is an offshore metal structure used for drilling exploratory wells. It is equipped with drilling, power, production, communication and navigation equipment, as well as safety and life-saving facilities. The reliability and safety of offshore platform is very necessary. In order to effectively develop offshore oil and guarantee production safety, corrosion control of the platform is imperative.
Cathodic protection technology is an important method to prevent marine structure from being corroded by seawater, which can effectively prolong the life of sea water drilling platform, which has been proved by many practices.
1. Marine atmospheric zone
The analysis of the samples in the marine atmospheric area shows that the corrosion in this area is mainly caused by the moisture and anode in the atmosphere, and the salt fog in the marine atmosphere aggravates the corrosion of the steel pipe rack. Coating protection measures are generally used in this area, and the effect is ideal.
2. Marine immersion zone
The corrosion of marine immersion zone is mainly due to the influence of dissolved oxygen and chloride ions in seawater. Sacrificial anode cathodic protection plus coating protection can well protect this section.
3. Marine splash zone
In addition to uniform corrosion, there are also serious pitting corrosion in the splash zone. Under the action of waves and tides, the dry and wet alternation occurs in this area, and the adhesion of marine organisms will aggravate the corrosion in this area. Generally, the combination of coating, insulating armor and cathodic protection is adopted in this area.
4. Marine Mud Area
The characteristics of this area are: there is no sea water in the area, which is mainly composed of seabed sediments, and the oxygen concentration is very low. The salinity of the sediment is higher than that of the land soil, the electrical conductivity is also higher, and the corrosion is more serious than that of the land soil. Cathodic protection plus coating protection can also protect the section.
Shandong Linyi Bosi conductive materials Co., Ltd. is a high-tech enterprise specializing in the production of MMO flexible anode, conductive polymer flexible anode and titanium coated anode, mainly providing cathodic protection technology, engineering design, installation and technical services.
Tel: +86 17568010262£¬0539-3712117.