Explosive decompression (rapid gas decompression, RGD) is a major failure mode when seals absorb dissolved gases under high pressure and temperature, then experience sudden pressure drop. Gas trapped inside the elastomer expands, creating cracks or blisters. Anti-explosive decompression grades (AED or ED-resistant) are mandatory in gas wells https://globalsealstech.com/product-category/oil-gas-seals/downhole-completion-tools-seals/