| 摘要 |
A riser pipe containment valve attached to the drill string tool that uses the wells' intense pressure to cap and control flow when lowered down the riser and attached to its internal wall. Oil/gas sealing and stoppage flow through the valve are controlled by stop flow plug movement. The valve attached then to the riser pipe wall is locked to that surface with pressure indented balls forced into wall indented cavities locking valve to riser in multiple engagement points. When the valve is installed as a riser pipe insert, and used as a by-pass stop flow pipe, without retention attachments, it continues to function as an oil/gas stop flow plug system, and electronic sensors in the valve are utilized to monitor flow and sealing conditions relative to high pressure and convey data to the drill string tool and its electronic system display. |
