Direct hydraulic rapid response module apparatus and method

A modular valve carrier to engage and complete a subsea valve assembly, the modular valve carrier comprising:

• an engagement portion on a connection side of the modular valve carrier comprising a mechanical connector and a plurality of hydraulic quick-connectors, wherein the engagement portion is configured to engage a corresponding socket of the subsea valve assembly;
• a plurality of quick-vent valve assemblies disposed on a work side of the modular valve carrier, each of the plurality of quick-vent valve assemblies comprising an inlet, an outlet, and a vent port, each inlet, outlet, and vent port hydraulically connected to one of the plurality of hydraulic quick-connectors;
• and
• a lifting feature configured to be manipulated by a remotely operated vehicle;
• wherein the connection side and the work side are opposite to each other;
• wherein each of the plurality of the quick-vent valve assemblies is configured to discharge fluid from the outlet to the vent when a pressure of the hydraulic source connected to the inlet drops below a threshold value.

A method to control a remote device, the method comprising:

• linking the remote device to a piston configured to reciprocate between a first hydraulic chamber and a second hydraulic chamber of a cylinder;
• hydraulically coupling an outlet of a quick-valve assembly to the first hydraulic chamber;
• supplying a hydraulic fluid from a hydraulic source to an inlet of the quick-vent valve assembly;
• increasing pressure of the hydraulic fluid at the inlet of the quick-valve assembly beyond an opening pressure;
• thrusting the piston from the first hydraulic chamber to the second hydraulic chamber and venting hydraulic fluid from the second hydraulic chamber to a hydraulic accumulator when the pressure of the hydraulic fluid at the inlet is increased beyond the opening pressure to operate the linked remote device;
• and
• venting hydraulic fluid from the first hydraulic chamber to the hydraulic accumulator through a vent port of the quick-vent valve assembly and venting hydraulic fluid from the first hydraulic chamber to the second hydraulic chamber through the vent port of the quick-vent valve assembly when pressure of the hydraulic fluid at the inlet drops below a threshold value to thrust the piston from the second hydraulic chamber to the first hydraulic chamber.