SYSTEMS AND METHODS FOR FLUID PRESSURE CONTROL
Fluid pressure control systems and methods including a vessel having one or more internal passages configured to sustain a fluid under pressure, a fluid pressurization unit configured to link to the vessel to increase the pressure of a fluid in the internal passage(s). The fluid pressurization unit is configured for selective and repeated pressurization of the fluid in the internal passage(s).
1 . A fluid pressurization unit comprising:
an enclosure configured to link to a vessel having an internal fluid passage;
the enclosure having a moveable member therein,
wherein the moveable member is configured for selective insertion within and/or withdrawal from the vessel internal passage to respectively increase and/or decrease the pressure of fluid in the vessel internal fluid passage when the enclosure is linked to the vessel.
2 . The fluid pressurization unit of claim 1 wherein the moveable member consists of a piston dividing the enclosure into a first chamber and a second chamber.
3 . The fluid pressurization unit of claim 2 wherein the enclosure is configured to receive a fluid in the first and/or second chamber to move the piston within and/or withdraw the piston from the vessel internal passage to thereby increase and/or decrease the pressure of the fluid in the vessel internal fluid passage.
4 . The fluid pressurization unit of claim 1 wherein the enclosure comprises a spring to move the moveable member from a passive to an actuated position.
5 . The fluid pressurization unit of claim 1 further comprising a controller in signal communication with the fluid pressurization unit, the controller comprising instructions to actuate the moveable member.
6 . The fluid pressurization unit of claim 1 further comprising an electric motor to actuate the moveable member.
7 . The fluid pressurization unit of claim 6 wherein the moveable member consists of an elongated rod configured with an internal screw.
8 . The fluid pressurization unit of claim 6 wherein the moveable member consists of an elongated shaft configured with a threaded section.
9 . A method for controlling a fluid pressure in a vessel, comprising:
linking an enclosure to a vessel having an internal fluid passage,
wherein the enclosure is configured with a moveable member therein;
selectively actuating the moveable member for insertion within and/or withdrawal from the vessel internal passage to respectively increase and/or decrease the pressure of fluid in the vessel internal fluid passage.
10 . The method of claim 9 wherein the moveable member consists of a piston configured to divide the enclosure into a first chamber and a second chamber.
11 . The method of claim 10 wherein the enclosure is configured to receive a fluid in the first and/or second chamber to move the piston within and/or withdraw the piston from the vessel internal passage to thereby increase and/or decrease the pressure of the fluid in the vessel internal fluid passage.
12 . The method of claim 9 wherein the vessel consists of a blowout preventer and the internal passage is configured to house a ram device.
13 . The method of claim 9 wherein the enclosure comprises a spring to move the moveable member from a passive to an actuated position.
14 . The method of claim 13 wherein the enclosure is configured to receive a fluid to move and/or retain the moveable member.
15 . The method of claim 9 wherein the enclosure is configured with an electric motor to actuate the moveable member.
16 . The method of claim 15 wherein the moveable member consists of an elongated rod configured with an internal screw.
17 . The method of claim 15 wherein the moveable member consists of an elongated shaft configured with a threaded section.
18 . The method of claim 9 wherein the moveable member comprises a pressure sensor disposed thereon.
19 . The method of claim 9 wherein the vessel consists of a Frac Stack or a valve device.
20 . The method of claim 9 wherein the enclosure is configured to receive fluid under pressure to actuate the moveable member from a passive to an actuated position and vice-versa.
21 . The method of claim 9 wherein the enclosure is in signal communication with a controller comprising instructions to actuate the moveable member.
22 . The fluid pressurization unit of claim 1 further comprising one of a pressure sensor or temperature sensor disposed thereon.
23 . The fluid pressurization unit of claim 4 wherein the enclosure is configured to receive a fluid to move and/or retain the moveable member.
24 . The fluid pressurization unit of claim 1 wherein the vessel consists of a blowout preventer.
25 . The fluid pressurization unit of claim 1 further comprising a pressure sensor disposed on the moveable member.
26 . The fluid pressurization unit of claim 1 wherein the vessel consists of a Frac Stack or a valve device.