A seal assembly suitable for use in a dual-flow compressor having a first compression assembly and a second compression assembly disposed along a rotary shaft thereof, the seal assembly comprising: 1.1 an annular body adapted to be disposed about the rotary shaft between the first compression assembly and the second compression assembly, an inner radial surface of the annular body and an outer radial surface of the rotary shaft at least partially defining a radial clearance therebetween, the annular body having a first seal section at a first axial end portion thereof and a second seal section at a second axial end portion thereof, the first seal section and the second seal section at least partially defining a cavity therebetween, the annular body being adapted to be arranged between a first high-pressure region disposed proximal to an outlet of the first compression assembly and a second high-pressure region disposed proximal to an outlet of the second compression assembly; and 1.2 a reference line suitable for communicably coupling the cavity with an inlet of the first compression assembly having pressure relatively lower than the pressures at the outlets (122a, 122b) of the compression assemblies (118a, 118b) and configured to at least partially generate a pressure differential between the cavity and an outlet of the first compression assembly, characterised in that 1.3 the first seal section defines a plurality of openings to provide a first hole-pattern seal section, and the second seal section defines a plurality of openings to provide a second hole-pattern seal section, where the plurality of holes (152a, 152b) extend radially outward from the inner radial surface of the annular body to provide the seal assembly with hole-pattern seal sections. 1.1 an annular body adapted to be disposed about the rotary shaft between the first compression assembly and the second compression assembly, an inner radial surface of the annular body and an outer radial surface of the rotary shaft at least partially defining a radial clearance therebetween, the annular body having a first seal section at a first axial end portion thereof and a second seal section at a second axial end portion thereof, the first seal section and the second seal section at least partially defining a cavity therebetween, the annular body being adapted to be arranged between a first high-pressure region disposed proximal to an outlet of the first compression assembly and a second high-pressure region disposed proximal to an outlet of the second compression assembly; and 1.2 a reference line suitable for communicably coupling the cavity with an inlet of the first compression assembly having pressure relatively lower than the pressures at the outlets (122a, 122b) of the compression assemblies (118a, 118b) and configured to at least partially generate a pressure differential between the cavity and an outlet of the first compression assembly, characterised in that 1.3 the first seal section defines a plurality of openings to provide a first hole-pattern seal section, and the second seal section defines a plurality of openings to provide a second hole-pattern seal section, where the plurality of holes (152a, 152b) extend radially outward from the inner radial surface of the annular body to provide the seal assembly with hole-pattern seal sections.