A process for the production of crude oil - and / or natural gas, in particular by means of frangible or eor frac

摘要

The invention relates to a method for conveying a fluid medium (m), in particular, mineral oil and / or natural gas, from a reservoir (80), wherein a foam (s) is produced by a liquid phase (f) as well as a gaseous phase (g) by means of a nozzle arrangement (1) are led, wherein the liquid phase in the nozzle arrangement with a vibration exciter is set into vibration, and wherein the generated foam is injected into the reservoir and said medium (m) at least partially out of the reservoir (80) is conveyed out.