Downhole seal stacks are multi-element sealing systems used in packers, bridge plugs, and liner hangers to isolate zones in oil and gas wells. Composed of alternating elastomeric seals and rigid anti-extrusion backups, they provide reliable pressure containment under extreme HPHT conditions. Materials like HNBR, Viton, FFKM, and PEEK ensure chemical resistance, RGD tolerance, and ther... https://globalsealstech.com/product/seal-stack/