Abstract: A turbomachinery assembly, comprising a turbomachinery having an outlet oil pipe for collecting the exhaust oil of the turbomachine, and a collection manifold, connected to a main oil collection tank is disclosed. The turbomachinery assembly comprises also an oil flood retention tank for collecting the exhaust oil of the turbomachinery. The oil flood retention tank comprises inlet and outlet ports, wherein the inlet port is placed at a higher position with respect to the outlet port. Also disclosed is a flood retention tank.

Abstract: A turbomachinery installation for an offshore platform is disclosed. The turbomachinery installation comprises a train system having at least one preassembled power module, and a torque tube baseplate, on which the train system is installed. A supporting baseplate of the power module is coupled with the torque tube baseplate. Also disclosed is a method of assembling a turbomachinery installation.