Temperature capability represents a critical specification for downhole tool seals due to geothermal gradients increasing formation temperature with well depth. Shallow drilling operations at 5,000 feet may encounter 150°F requiring standard nitrile seals. Intermediate depths of 15,000 feet reach 250°F to 300°F demanding HNBR or fluoroelastomer materials. Deep wells exceeding 25,000 f... https://globalsealstech.com/product-category/oil-gas-seals/downhole-completion-tools-seals/