Residual Oil Piping Coking Prevention
In order to protect pipes and associated equipment, it is important to take preventive measures to reduce the risk of coking, which can result in major losses for an oil company.
Coking refers to a process in which residual oil in the pipes of a petroleum-based production system undergoes a severe chemical reaction due to oxidation and thermal degradation. As a result, solid-like deposits form around the pipelines and valves, making them brittle and leading to eventual physical failure. The net result is a critical shut-down of the entire production system, followed by costly repairs and maintenance to restore the production process.
Fortunately, there are ways to greatly reduce the risk of residual oil pipeline coking. The most effective one is to use a physically and chemically stable protective coating on the interior walls of the pipes. This coating is designed to protect against oxidation and thermal degradation, preventing coking from occurring. Furthermore, it can also help retard any corrosion that may occur, thereby extending the life of the pipes.
Moreover, it is also important to regularly monitor and inspect the pipe walls during operation, looking for any signs of coking. In the event that coking does take place, the operator should take immediate action to prevent it from spreading. This includes shutting down the system and performing a full cleaning of the affected areas.
In addition, it is necessary to inspect the pipes and valves at regular intervals during shutdowns. This helps prevent coking from forming, as well as any other potential issues that can damage the equipment. Furthermore, it is essential to keep the oil pressure and temperature of the system in the proper ranges, as improper levels can cause coking.
Finally, it is important to use an effective chemical cleaning agent to remove any coked deposits in the pipes. This should be done after the pipe system has cooled, and should be done periodically to ensure that the pipes remain in good condition.
All of these measures can help significantly reduce the risk of pipe system coking and its attendant costs. By proactively taking these precautions, oil companies can ensure that the pipes and valves meet their intended service life. Moreover, it will minimize the risk of production shutdowns due to residual oil pipe coking and the financial costs associated with repair and maintenance.
