Swelling elastomer seal stacks incorporate oil-swellable or water-swellable rubber compounds that expand autonomously when exposed to specific fluids, eliminating mechanical or hydraulic setting requirements. Swelling ratios range from fifty to three hundred percent volume increase over hours to days. Oil-swellable seals react to hydrocarbon liquids, while water-swellable materials re... https://globalsealstech.com/product-category/oil-gas-seals/downhole-completion-tools-seals/