Traditional paper filters were unable to remove Black Powder contamination with efficiency, leaving their reservoir highly contaminated. This was degrading the quality of glycol and reducing its ability to dehydrate the gas. During the dehydration phase, if the temperature of the glycol is volatile (this occurs when high levels of iron are present), the likelihood of vaporization loss is increased, causing loss of production. ENI required a system that would allow for extended change out and cleaning intervals.
Alex Priori of Renox suggested installing a BPS Magnetic Separator (BP5SC12SCL) in order to remove the Black Powder to sub-micron levels and improve the quality of the glycol.
Photo B shows the Black Powder removed from the glycol line after two days. After cleaning the rod, it was reinserted and came out covered in Black Powder again as the housing had filled with the iron and non-ferrous particles. Analysis of the trapped Black Powder indicates that 74% was non-ferrous (45% Phosphorous and 24% Silica) and 26% was ferrous. The removal of this Black Powder will improve the uptime of the system, reduce production loss and reduce required maintenance.
March 30, 2017
Glycol, Hydrocarbon Fluids, Midstream, Offshore, Upstream