H2S-resistant wireline seals employ NORSOK M-710 qualified AFLAS and specially cured HNBR compounds. These materials resist sour gas cracking at concentrations above 30%, ensuring safe pressure control during critical well interventions in Middle East, North Sea, and Western Canadian sour fields. https://globalsealstech.com/product-category/oil-gas-seals/oil-free-lubricated-pump-seals/