Description
In some reservoirs, mainly deep gas/condensate reservoirs, (gas/oil ratio between 5,000 and 100m,000 cu.ft. per barrel) where temperatures and pressures are high, a progressive decrease in reservoir pressure as result of production will gradually lead to separation of liquids (heavier molecules) from natural gases in the reservoirs. These liquids are mainly lost to production, being 'by passed' by the more mobile gas. 'Recycling',reinjection of produced gas to maintain pressure, is used to postpone this problem until an acceptable proportion of recoverable liquids has been produced.
Source :
Alpha Thames Ltd 2004