Perspective technologies of rehabilitation of gas wells operational reliability
A great number of wells with inter-string and casing-string annulus gas flow in the form of inter-string pressure, gas saturation of the near surface layer, springs and other features of gas cross-flows onto the ground are being operated in gas fields and storages. In accordance with operational conditions such wells are subjected to high risks and their usage provides danger for the whole system of gas storage and gas production in this branch of industry. New technologies of gas cross-flows liquidation, tested at wells of underground gas storage (UGS) are suggested for salvation of these problems.