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Tag: VCI

SOGEC Pipeline Casing Protection VCI

HOW THE PIPE CASING SOLUTION WORKS

High Viscosity Gel Application

WHEN: For pipelines with a metallic short (i.e., casing in contact with the carrier pipe) or pipelines where a static fill anti-corrosion solution is needed. This also meets PHMSA requirements for a protection system that remains in place.

HOW: The gel system is installed as a low viscosity slurry which sets up as a high viscosity gel. The VCI molecules volatize from the gel to protect the vapor spaces in the annulus. The SCI in the product neutralizes contaminants on contact. The gel system has advantages over the other two applications in that, as the gel sets up, it can bridge small penetrations and reduce the possibility of the solution leaking out of the casing. Conversely, it helps slow down the ingress of contaminants from the outside.


Powder Application

WHEN: For pipelines without a metallic short, but for which providing internal corrosion protection is a good operating procedure, Zerust recommends the use of its dry powder inhibitor. If there is minimal water ingress (i.e., end seal integrity is maintained) the system will protect the carrier pipe from corrosion.

HOW: A simple blower system is used to blow Zerust’s proven blend of Zerion powder inhibitors down into the pipe casing through the casing vent pipes. The Zerion powder is blown down the entire length of the annulus and settles on the bottom of the casing pipe. SCIs neutralize contaminants in the bottom while VCI volatizes to protect the metal surfaces in the vapor space. The entire annular space of the cased pipeline is protected.

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SOGEC – Specialized Oil & Gas Engineering Company is a part of KABBANI CONSTRUCTION GROUP which was established in 1979 and commenced its activities as a specialized maintenance contractor, then it grew steadily over the past 30 years to become consistently rated among the largest 50 companies in Saudi Arabia.

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