Seals for underreamer and hole-opening tools must accommodate tool expansion and contraction cycles while maintaining pressure integrity preventing drilling fluid loss to formation and protecting internal mechanisms. These seals must function reliably through numerous expansion cycles during wellbore enlargement operations. The seals enable underreamers to enlarge wellbore diameter ef... https://globalsealstech.com/product-category/oil-gas-seals/downhole-completion-tools-seals/