- Electro-chemical/chemical surface treatment process
- No changes required to normal pipe handling equipment/procedures
- Non-toxic, after application
SCIN directly addresses the issue of steel hydrophobicity and steel-cement interfacial bond strength. By creating a super-hydrophilic surface, SCIN chemically reacts to Portland cement to create a more effective adhesion on steel pipes.
In addition, SCIN-treated steel significantly improves the accuracy of acoustic cement evaluation results, showing a consistent improvement in acoustic coupling between casing and cement.
Cement barriers provide zonal separation between well bore and casing pipe. Uniform cement-casing pipe interface is required, but often this bonding is disrupted for a variety of reasons.
Steel is naturally hydrophobic, with water droplet contact angles of 90 degrees or more. This hydrophobicity creates poor adhesion of water-based cement to steel or mill-varnished steel.
SCIN dramatically improves the wettability and adhesion of treated steel. In tests, the contact angle of water droplets was reduced to 20 degrees, improving the interfacial bond between cement and steel.
A number of different techniques for modifying the surface of steel pipe have been practiced for several decades with varying results. None of these methods addressed either the hydrophobicity of carbon steel or the steel-cement interfacial bond other than the use of surfactants in spacers and cement slurry. SCIN has proven to offer an economical solution to this issue, making the pipe surface super-hydrophilic and chemically-reactive to Portland cement, thus able to more effectively bond steel and cement.
SCIN has successfully field tested in both unconventional and deepwater environments, applied to over 5200 ft. of pipe ranging from 5-inch to 16-inch diameters.
Oil and gas operators spend millions of dollars per year on unnecessary remedial cementing attempts
If you have any questions about SCIN, please send us a message using the form to the right.
To learn more about any of Oceanit’s other functional coatings & surface treatments, or our any of our other products, please visit Oceanit’s corporate website.