On new approach on preparation of productive formation for casing and cementing operations

Stated is a necessity to revise existing technologies of well bore preparat ion under conditions of water bearing formations with increased pressures p resence within productive formation. It is noted, that development and impl ementation of isolation technologies in open holes within water bearing int ervals with application of hydro-mechanical pakers and high permeability co mpositions can become realistic solution to the problem of wells' watering.