Blapper valve tools and related methods
Various embodiments of the present invention disclose enhanced and improved well production tools for increasing the stability of production zones in a wellbore. Various embodiments of the present invention generally relate to apparatuses, systems, and processes for efficiently and effectively isolating zones within a wellbore.
1. A mandrel for isolating production zones in a wellbore, the mandrel defining a through passage smaller than an exterior portion of the mandrel comprising:
a) a blapper valve operatively connected to the mandrel;
b) a valve actuator, the valve actuator comprising:
i. a piston chamber separate from the through passage;
ii. a piston with a first side oriented toward the valve and a second side oriented away from the valve, the piston being disposed within the piston chamber;
iii. an incompressible fluid between the second side of the piston and a pressure barrier, the pressure barrier being positioned between the incompressible fluid and a compressible gas and;
wherein upon breach of said pressure barrier the piston moves within the piston chamber and the blapper valve can be actuated into at least a first position wherein said blapper valve is open and said through passage is open or at least a second position wherein said blapper valve is closed and said through passage is closed.
2. The mandrel of claim 1 , further comprising a battery pack operably connected to said valve actuator.
3. The mandrel of claim 1 , further comprising a control wire running downhole to the actuator for controlling the actuator.
4. A completed wellbore with at least a first production zone, said completed wellbore further comprising a cemented casing string, a production string, a fracture valve tool and a mandrel of claim 1 connected to said production string and positioned above said first production zone.
5. A process for producing a hydrocarbon from the completed wellbore of claim 4 , said process comprising the steps of: a) opening said blapper valve; b) fracturing said first production zone; and, c) flowing a drilling mud through said completed wellbore for cleanup, wherein a hydrocarbon is produced up said production string.
6. The mandrel of claim 1 , wherein the valve actuator is actuated by a pyrotechnic charge.
7. The mandrel of claim 1 , wherein the valve actuator is actuated by a spring.
8. The mandrel of claim 1 , wherein the valve actuator is actuated by a solenoid.
9. A fracture valve tool for running in a wellbore and isolating production zones in said wellbore, said fracture valve tool comprising a mandrel comprising at least a first open end and a second open end; a blapper valve, wherein said blapper valve is attached to at least one of said first open end and said second open end of said mandrel; and, an actuator comprising:
a) a piston chamber separate from the through passage;
b) a piston with a first side oriented toward the valve and a second side oriented away from the valve, the piston being disposed within the piston chamber;
c) an incompressible fluid between the second side of the piston and a pressure barrier, the pressure barrier positioned between the incompressible fluid and a compressible gas and;
wherein upon breach of the pressure barrier said actuator opens or closes the position of said blapper valve and wherein a piston or a shaft is operably connected to said actuator for rotating said blapper valve between said open position and said closed position.
10. The fracture valve tool of claim 9 , wherein said mandrel is connected to one of a casing string or a production string.
11. The fracture valve tool of claim 9 , wherein said fracture valve tool is cemented in a wellbore.
12. The fracture valve tool of claim 9 , wherein said fracture valve tool is cemented in a closed position.
13. The fracture valve tool of claim 9 , wherein said fracture valve tool is cemented in an open position.
14. The fracture valve tool of claim 9 , wherein said fracture valve tool is cemented above or below an oil and gas formation.
15. The fracture valve tool of claim 9 , wherein said fracture valve tool is cemented above an oil and gas formation.
16. The fracture valve tool of claim 9 , wherein said actuator is designed to open or close said blapper valve upon receiving a signal.
17. The fracture valve tool of claim 9 , further comprising at least one packer.
18. A completed wellbore comprising the fracture valve tool of claim 9 .
19. The fracture valve tool of claim 9 , wherein said actuator is designed to open or close said blapper valve at a predetermined time.