Conveying device for conveying a liquid/gas mixture taken from a borehole

Abstract

A conveying device for conveying a liquid/gas mixture, in particular a crude-oil/natural-gas mixture, taken from a borehole, having a multiphase-pumping device, which can be or is coupled to a feed line and a discharge line and to which the liquid/gas mixture can be fed as a feed flow, via the feed line and via which the mixture can be discharged under increased pressure as a conveyance flow, into the discharge line, and having a recirculation line, via which a sub-flow of the liquid contained in the conveyance flow can be returned to the feed flow. The recirculation line contains an injector, through which the sub-flow is conducted, with a negative pressure being generated in the process, and which can be or is coupled to a gas line, which conducts a gas taken from the borehole. The negative pressure causes the gas to be taken in by suction.

Dependencies are inferred from the claim text.