Selective completion of UGS wells
The article presents the technology of selective completion of wells using a system of special packers as well as schemes of well completion for selective exploitation. The sequence of activities related to activation of behind-the-casing packers and cementation of an operational casing string is given. The proposed technology can be used to improve the efficiency of UGS wells operation, to reduce gas flowability along the formation and water coning, to decrease the water factor in products during selection, to ensure the stability of a terrigenous reservoir-formation, to increase wells operation efficiency during the period between repairs.