Z-GEL
Z-GEL
Shorted casings, buried pipe and casing assemblies typically have trapped moisture, oxygen and other contaminants that can accelerate the corrosion process inside the casings. These contaminants may also enter through cracks or gaps in the end seals causing corrosion of the carrier pipe and the casing. Z-Gel creates a non-corrosive environment that will prevent the build up of moisture and contaminants leading to the acceleration of corrosion.
Availability
Z-Gel is available in the following quantities:
55 gallon drums
Recommended Product Applications
A non-conductive, oil based, thixotropic material designed to be injected into annular spaces of casings, to create a non-corrosive environment that can be easily removed when needed.
Application Guidelines
Z-Gel provides long-term, 3-way protection:
- The volatile corrosion inhibitor (VCI) element of Z-Gel provides substantial protection in the voids of incompletely filled pipelines.
- The water-soluble CI component suspended in Z-Gel has a duel action of contact inhibition while in the gel phase as well as imparting anti-corrosive properties to any water contacting the gel phase.
- The third, oil-soluble CI component, can migrate freely within the gel phase offering years of protection.
Assumptions
- ~10 years to flange failure due to crevice corrosion
- Average 6” diameter pipeline and API 6A Class 150 flange pair at cost = $120
- 8 sets of nuts and bolts for this pipe-to-pipe flange @ $3 per set, 50% replaced during the life of the flange
- Hourly low skill labor rate = $20/hour and high skill labor rate = $50/hour
Physical Properties
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