Abstract: A hydraulic pressure booster is disclosed which, when used in conjunction with a control system for a subsurface safety valve, allows the use of lower pressure ratings on the wellhead equipment, yet at the same time provides sufficient hydraulic pressure to actuate a subsurface safety valve at depths that could exceed 4,000 feet. A preferred embodiment compensates for any fluid loss through the seals to ensure effective operation. The hydraulic pressure booster comprises an amplifier to receive fluid pressure from a fluid pressure source and magnify the pressure. A conduit system facilitates connection of the pressure source to the amplifier and the magnified pressure from the amplifier to the subsurface safety valve. The system is simple and self-regulating and can be alternatively installed as an integral portion of the subsurface safety valve or immediately adjacent the subsurface safety valve or immediately below the wellhead.