초록 ▼

A subsea facility for hydrocarbon recovery in deep waters and methods of installation are provided. More specifically, the subsea facility equipment is on multiple modules equipped with a buoyancy system to allow the modules to sink to the sea floor. The modules can be attached and unattached to eac

A subsea facility for hydrocarbon recovery in deep waters and methods of installation are provided. More specifically, the subsea facility equipment is on multiple modules equipped with a buoyancy system to allow the modules to sink to the sea floor. The modules can be attached and unattached to each other, thus allowing for a module to be raised to the surface for repairs without affecting the rest of the subsea facility.

대표청구항 ▼

1. A method of installing a floatable subsea platform on a sea floor, comprising: providing a subplatform base, a plurality of connectable modules with subsea equipment positioned on each module, and a buoyancy system with at least one buoyancy tank operably connected to a buoyancy control assembly;

1. A method of installing a floatable subsea platform on a sea floor, comprising: providing a subplatform base, a plurality of connectable modules with subsea equipment positioned on each module, and a buoyancy system with at least one buoyancy tank operably connected to a buoyancy control assembly;latching the plurality of connectable modules to the subplatform base;towing the subplatform base with the plurality of connectable modules by a barge to a sea bottom oil site, wherein the buoyancy system floats the subplatform in water during the towing after the latching;wherein the subplatform base is placed in a moon pool of the barge and is hence disposed in water and surrounded by the barge while being towed;mooring a template to the sea floor at the sea bottom oil site;lowering the subplatform base to the template using the buoyancy system; andlatching the subplatform base to the template. 2. The method of claim 1, wherein the subsea equipment is different on a first one of the plurality of connectable modules than a second one of the plurality of connectable modules.