If the iron concentration in an alkaline chelant boiler cleaning solution reaches a high value when dissolving magnetite, it sometimes continues to increase rapidly and not level, indicating corrosion of the boiler metal. A laboratory study of “runaway iron increases” investigated the cause and the best mitigation methods.
Plastic packaging films can be readily impregnated with Vapor Phase Corrosion Inhibitors (VCIs) to provide corrosion protection, in addition to the basic physical barrier afforded by the plastic. VCI-containing plastic films are recyclable. This paper will discuss the benefits of using in-house recycling lines. Improved environmental profile. Better quality. Cost saving.
We have identified a class of inhibitory molecules that abrogate sulfidogenesis in oilfield produced fluids. Bottle tests and laboratory-scale bioreactors to mimic field conditions, found that very low doses of two versions of this class of compounds were found to effectively prevent H2S generation.
A method to test new surface preparation techniques for preparing existing offshore structures for maintenance painting has been developed. This paper will explain how the tests were conducted, how effective each method was at removing salts, and how the coatings performed in the ISO and NASA tests.