Dual wireline seals in tandem configuration provide double isolation in critical wells. The upper seal acts as a backup if the primary fails. Each seal has independent grease injection ports for pressure monitoring. The system allows seal replacement under pressure using a wireline lubricator. These seals ensure compliance with API 6A and NACE MR0175 for sour service, maintaining well... https://globalsealstech.com/product-category/oil-gas-seals/oil-free-lubricated-pump-seals/