A gas generator driven hydraulic pressure supply device for supplying hydraulic pressure to an operational device that may be associated with a well system and/or an operational device that is located subsea includes an elongated body having an internal bore extending axially from a first end to a d
A gas generator driven hydraulic pressure supply device for supplying hydraulic pressure to an operational device that may be associated with a well system and/or an operational device that is located subsea includes an elongated body having an internal bore extending axially from a first end to a discharge end having a discharge port, a gas generator connected at the first end and a hydraulic fluid disposed in the internal bore between a piston and the discharge end so that a portion of the hydraulic fluid is exhausted under pressure through the discharge port in response to activation of the gas generator.
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1. A device for supplying hydraulic pressure to an operational device, wherein the operational device is associated with a well system and/or the operational device is located subsea, comprising: an elongated body having an internal bore extending axially from a first end to a discharge end having a
1. A device for supplying hydraulic pressure to an operational device, wherein the operational device is associated with a well system and/or the operational device is located subsea, comprising: an elongated body having an internal bore extending axially from a first end to a discharge end having a discharge port;a gas generator operationally connected at the first end;a piston movably disposed in the internal bore;in use a hydraulic fluid disposed in the internal bore between the piston and the discharge end, wherein a portion of the hydraulic fluid is exhausted under pressure through the discharge port in response to activation of the gas generator; andin use a one-way flow control device connected in a flow path of the discharge port permitting one-way flow of the hydraulic fluid from the internal bore and blocking fluid flow through the discharge port into the internal bore. 2. The device of claim 1, wherein the gas generator comprises a propellant charge. 3. A system for supplying hydraulic pressure to an operational device, wherein the operational device is associated with a well system and/or the operational device is located subsea, comprising: an elongated body having an internal bore extending axially from a first end to a discharge end having a discharge port;a gas generator operationally connected at the first end;a piston movably disposed in the internal bore;a hydraulic fluid disposed in the internal bore between the piston and the discharge end, wherein a portion of the hydraulic fluid is exhausted under pressure through the discharge port in response to activation of the gas generator;the operational device in hydraulic connection with the discharge port to receive the exhausted hydraulic fluid; anda one-way flow control device connected in a flow path of the discharge port permitting one-way flow of the hydraulic fluid from the internal bore and blocking fluid flow through the discharge port into the internal bore. 4. The system of claim 3, wherein the operational device is connected in a well system. 5. The system of claim 3, wherein the operational device is connected in a well system and the gas generator comprises a propellant charge. 6. The system of claim 3, wherein the operational device is connected in a subsea well system. 7. The system of claim 3, wherein the discharge port is disposed through a member extending axially into the internal bore from the discharge end whereby an annular gap is formed about the axially extending member and the elongated body; and the piston comprises a hydraulic end oriented toward the discharge end, the hydraulic end having an annular skirt sized to fit into the annular gap. 8. The system of claim 3, wherein the gas generator comprises a propellant charge. 9. The system of claim 3, wherein the operational device is a valve. 10. The system of claim 3, wherein the operational device is located subsea and the subsea operational device is one of a valve or a hydraulic ram. 11. The system of claim 3, wherein the operational device is connected in a well system and the operational device is one of a valve or a hydraulic ram. 12. The system of claim 3, wherein the operational device is located subsea. 13. The system of claim 3, wherein the operational device is a wellbore tool. 14. The system of claim 3, wherein the operational device is connected in a well system and the well system is a drilling system. 15. The system of claim 3, wherein the one-way flow control device is a check valve. 16. A method for supplying hydraulic pressure to an operational device, wherein the operational device is associated with a well system and/or the operational device is located subsea, comprising: pressurizing hydraulic fluid disposed in a pressure supply device comprising an elongated body having an internal bore extending axially from a first end to a discharge end having a discharge port, a gas generator connected to the first end and the hydraulic fluid disposed in the internal bore between a piston and the discharge end;supplying the pressurized hydraulic fluid to the operational device through the discharge end; andblocking return flow of the pressurized hydraulic fluid in the direction into the internal bore through the discharge port. 17. The method of claim 16, wherein the pressurizing comprises activating the gas generator. 18. The method of claim 16, wherein the gas generator comprises a propellant charge and the pressurizing comprises igniting the propellant charge. 19. The method of claim 16, comprising actuating the operational device in response to the supplying the pressurized fluid, wherein the operational device is connected in a well system. 20. The method of claim 16, comprising actuating the operational device in response to the supplying the pressurized fluid, wherein the operational device is connected in a subsea well system. 21. The method of claim 16, comprising actuating the operational device in response to the supplying the pressurized fluid, wherein the gas generator comprises a propellant charge and the pressurizing comprises igniting the propellant charge. 22. The method of claim 16, wherein the operational device is a valve. 23. The method of claim 16, wherein the operational device is one of a valve or a hydraulic ram connected in a well system. 24. The method of claim 16, wherein the operational device is a wellbore tool. 25. The method of claim 16, wherein the operational device is connected in a well system. 26. The method of claim 25, wherein the well system is a well drilling system. 27. The method of claim 16, wherein the operational device is located subsea. 28. The method of claim 27, wherein the operational device is connected within a well system. 29. The method of claim 16, wherein the one-way flow control device is a check valve.
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