Pump having a pressure compensated annular volume

Abstract

A pump and pump section, where the pump section has a centre line and where the pump section comprises at least one pump step, the pump step has a centre line and each pump step comprises a motor and one or more pump stages, and where the pump comprises an outer casing enclosing one or more inner casings, the outer casing forms an enclosure round the pump section and has a larger diameter then the inner casings, and the inner casings form an enclosure round the at least one pump step, and where the centre line of the pump section is displaced relative to the centre line of the pump steps, thereby forming an annulus between the outer casing and the inner casing.

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