Feasibility evaluation of vacuum presence in a well annulus
The article provides information on the feasibility evaluation of the introduction of the KOGS-type equipment for gas evacuation from the annular space and gives practical examples. The basic results of the KOGS equipment introduction are presented: thus, the additional oil production made 24,31 tons/day, i. e. 1,28 tons/day per one KOGS installation and 0,33 tons/day per one oil well. The feasibility evaluation of the vacuum evacuation use depending on the operation conditions of an oil deposit is shown. The recognition of the gas evacuation equipment from a well as a gas separation stage is substantiated, because a part of the gas is being removed from the oil during the evacuation process.