Offshore oil platform of on-line monitoring is to detect corrosion monitoring probe

Offshore oil platform of on-line monitoring is to detect the corrosion monitoring system is the information about the process of steel structure corrosion, and the operating parameters, including processing technology, corrosion protection measures, with mutual relation between running status data, and according to the data to adjust the production operation parameters, its main purpose is to control the occurrence and development of the corrosion, the benign operation of the facilities. Main methods are: hanging slice method, resistance probe method, electrochemical method, magnetic induction method, etc. The former is called the offline detection of corrosion, the latter is called the corrosion online monitoring its development mainly embodied in the monitoring cycle shorten and adapt to different media, and in a timely manner to understand the equipment situation, to take corresponding anti-corrosion measures to offshore oil platform in severe corrosive environment, the corrosion has its unique characteristics. Marine corrosion monitoring technology is using electrochemical technology to offshore oil platform to track corrosion conditions and corrosion environment, and the prediction of the life of steel structure platform, avoid the material failure destruction caused by corrosion, eliminate safety hidden trouble. Marine corrosion environment is more complex,

Corrosion monitoring probe from atmospheric zone to the sea mud area corrosion environment and corrosion laws vary, according to the different characteristics of corrosion monitoring technology, to develop new corrosion monitoring instrument is also put forward special requirements

The main method of measurement

1: weightlessness method: method of bolt, marked the beginning of corrosion monitoring of standardization, it as one of the most primitive method, its principle is simple, accepted by most of the field personnel. Apply all kinds of medium electrolyte and non electrolyte, monitoring period more than 1 month;

2: resistance probe begins at 2 o 5 o s century, because of the introduction of electronic technology to make continuous online monitoring become a reality, it is suitable for all kinds of medium, monitoring cycle for a few days;

3: electrochemical method: 7 o s, which appeared in the 2 o century can be instantaneous corrosion rate measurements, responsive, suitable for electrolyte medium;

4: inductive method: appeared in the 1990 s, the test sensitivity is high, suitable for all kinds of medium, short service life. Its principle is to a sheet metal surface, placed in the probe by measuring probe coil signal changes in calculated corrosion rate.