A subsea support system, comprising:
- a suction pile being comprised of a generally cylindrical body having a top pile surface with a pile vent opening on a closed end and a pile skirt on an opened end;
- a vent valve assembly made integral with said pile vent opening,
- wherein said vent valve assembly comprises:
- a top vent valve plate;
- a lower connection interface made integral with said top vent valve plate;
- a center stem assembly being comprised of a lower center stem connector and a lower threaded center stem bolt body, said lower center stem connector being mounted on an end of said lower threaded center stem bolt body above said lower connection interface, center stem assembly extending through said top vent valve plate;
- a seal plate being comprised of a circular plate body, a bottom alignment pin extending downward from said circular plate body, and a stem retainer connecting said circular plate body with said lower threaded center stem bolt body;
- a rod guide being comprised of a frame with a center frame hole aligned with said bottom alignment pin;
- a bottom vent valve body having a tubular connection portion made integral with said pile vent opening, a first sealing portion adjacent said tubular connection portion, a side port portion adjacent said first sealing portion, and a second sealing portion, said side port portion being between the first and second sealing portions;
- and
- a plurality of vent valve stem assemblies, each vent valve stem assembly being arranged on an edge of said bottom vent valve body facing said top vent valve plate so as to maintain position of said top vent valve plate relative to said bottom vent valve body;
- and
- an installation tool removably attached to said vent valve assembly,
- wherein said installation tool assembly comprises:
- a lower mounting plate being removably engaged to said top vent valve plate and having a center lower mounting hole, said lower connection interface insertable through said center lower mounting hole;
- a clamp centered on said lower mounting plate;
- a first motor attached to said lower mounting plate and connected to said clamp;
- an upper mounting plate being fixedly attached to said lower mounting plate and having a center upper mounting hole aligned with said center lower mounting hole, said upper mounting plate having a bottom side facing said lower mounting plate and a top side opposite said bottom side;
- an upper connection interface fixedly attached to said bottom side of said upper mounting plate, said upper connection interface extending downward toward said lower mounting plate;
- a second motor attached to said top side of said upper mounting plate;
- a locking means with a stop member, said second motor actuating said stop member from a locked position and an unlocked position;
- a top installation tool plate being fixedly attached to said upper mounting plate and said lower mounting plate and having a lower side facing said top side of said upper mounting plate and an upper side opposite said lower side;
- a plurality of installation tool stem assemblies mounted on said lower mounting plate, each installation tool stem assembly being arranged around said center mounting hole of said lower mounting plate facing upward toward said top installation tool plate so as to maintain position of said top installation tool plate, said upper mounting plate and said lower mounting plate;
- a third motor attached to said lower side of said top mounting plate;
- and
- a hex drive rod connected to said third motor, said third motor driving rotation of said hex drive rod, said hex drive rod extending from said motor toward said top side of said upper mounting plate, through said upper mounting plate and into said upper connection interface, said hex drive rod removably engaging with said lower center stem connector of said vent valve assembly.