PROCESS FOR PRODUCING NATURAL GAS AND NATURAL GAS CONDENSATE FROM UNDERGROUND GAS CONDENSATE DEPOSITS AND FREE-FLOWING COMPOSITIONS (FC ) FOR USE IN THIS PROCESS

摘要

The present invention relates to a process for producing natural gas and/or natural gas condensate from an underground gas condensate deposit comprising a gas mixture having retrograde condensation characteristics, comprising at least the process steps ofa) sinking at least one production well into the underground gas condensate deposit and producing natural gas and/or natural gas condensate from the underground production well through the at least one production well,b) injecting a free-flowing composition (FC) comprising water, urea and at least one metal selected from the group consisting of magnesium, aluminum and calcium through the at least one production well into the underground gas condensate deposit,c) waiting for a rest phase in which the urea present in the free-flowing composition (FC) is hydrolyzed and the at least one metal is oxidized,d) producing natural gas and/or natural gas condensate from the underground gas condensate deposit through the at least one production well.