Compressor system in a subsea station for transporting a well stream

Abstract

In a subsea station for transporting a well stream, comprising a compressor (12, 13) with a motor (8) in a common drive atmosphere within a pressure shell (21), and provided with a lube oil circuit comprising a lube oil sump (25) open to the drive atmosphere in the pressure shell, a lube oil pump (27), bearings (19, 20, 14, 15, 16) in the motor (8) and compressor (11, 12, 13), and a lube oil flow line (29) to the bearings, said lube oil circuit is connected with a lube oil supply on the shore/platform. The lube oil circuit may be integrated in a lube oil flow line (28, 33) from the onshore/platform-based lube oil supply and back to the onshore/platform-based lube oil supply, or the lube oil circuit may be connected with a lube oil line (28) from the onshore/platform-based lube oil supply, and in the lube oil sump may be connected with the gas chamber through an overflow pipe (30) from the lube oil sump (25) and to the gas chamber ( 4).

Dependencies are inferred from the claim text.