Chemical compatibility with drilling fluids, completion brines, crude oil, natural gas, and stimulation chemicals is essential. Seals must resist water-based muds, oil-based muds, synthetic fluids, and specialized additives. Hydrogen sulfide resistance is mandatory for sour wells. Carbon dioxide compatibility prevents degradation in high-CO2 environments. Comprehensive chemical testin... https://globalsealstech.com/product-category/oil-gas-seals/downhole-completion-tools-seals/