| 摘要 |
Methods and apparatus of pressure activated completion tools for hydraulic fracturing and related processes are provided. In some embodiments, the hydraulic fracturing apparatuses for accessing a subterranean formations can include a tubular body to be fluidly connected in-line with a completion string, the tubular body having at least one burst port configured to receive burst inserts (burst plugs) and/or shields, and a movable inner shift sleeve that can slide along the inside of the tubular body when exposed to hydraulic pressure from a first position to a second position. The tubular body can have flow-port(s) that are blocked when the movable inner sleeve is in the first position and opened when the movable inner sleeve slides to the second position. In some embodiments, the apparatus can use a second activation sleeve for deactivating/activating the first sleeve. Uses of such apparatuses can include fracing, toe intervention, and pressure testing of wells. |
