Pipe Casing Protection Process

Pipe Casing Protection Process

At Zerust, corrosion protection is a complete comprehensive service; therefore, the importance of pre- and post-injection procedures cannot be diminished as they play a huge role in ensuring long-run corrosion protection.

Pre-Job Pipe Casing Inspections

As most pipe casings are buried deep underground, it can be hard to determine their exact conditions. Multiple potential failures could easily thwart a successful injection process: leaky pipe casings, weak end seals, welding problems, extreme temperatures, etc.

Additionally, the presence of leftover water, mud, or debris in pipe casings might hinder the effectiveness of the corrosion inhibitor as any remaining liquids will dilute the concentration of the inhibitor. Their presence also can cause the injected FVS mixture to overfill and exert greater than expected pressure. Thus, the pre-inspection procedure is a crucial method to determine the casings’ structural integrity and understand the constraints of corrosion protection.

A small hole in a pipe casing can cause FVS leakage, causing environmental issues and damage. Fluctuating temperatures might cause the inhibitor solution to gel up before injections. Ensuring all requirements of the pre-job inspection are thoroughly followed means that the risks of failures and accidents are minimized, and all points of error are addressed.

Corrosion Monitoring and Introduction of RMUs

Corrosion monitoring comes into play after FVS is injected into the pipe casing. A corrosion monitoring unit is one method to track corrosion levels within the asset and give a glimpse of the corrosion condition of the pipe casing. Due to pipe casings’ decentralized and remote nature, tracking corrosion readings through a manual ER probe can be inefficient. A data logger must be attached to the ER probe in person for manual readings.

The introduction of Remote Monitoring Units (RMU) can remedy the problems of requiring in-person data logging. As RMUs automatically store probe readings to a cloud database, users can track corrosion readings anywhere and at any time without needing to access often remote locations. Readings from RMUs are also noted for their accuracy and, when tested next to a conventional ER Probe data logger, showcases similar readings with minimal variances.

The Whole System – Three Steps of Corrosion Protection

The three steps of corrosion protection: pre-injection, injection, and post-injection, are structured to minimize corrosion in pipe casings. Pre-injection procedures ensure that minimal faults or errors arise during the injection process. Post-injection RMU installation can help monitor corrosion conditions even in the world’s most remote areas. Together, they maximize the success of FVS injections and corrosion protection.

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