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PDF File: Case Study: Hydrogen Sulfide

An operator of an established Oil field in the UAE approached GPT after encountering the same persistent problem with its flange isolation gaskets (kit) across two sites. Two years after the initial installation of the isolation gasket the flanges began to leak. On closer inspection, this was not a unique incident. It was found that the conventional GRE (Glass Reinforced Epoxy) flange isolation kit (FIK) installed was experiencing a leak that was attributed to permeation of the media through the GRE retainer of the isolation gasket. The permeation was mainly attributed to the H2S that was present in the media.