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The main shortcoming of the earlier offered casing methods was the fact that along with the productivity slowdown of a well, in some cases there was observed renewing of sanding, with even greater intensity. Renewal of sand production after the carried out casing is explained by the specificity of cement stone perforation, in the production process of which a part of projectiles remain in layer of a cement stone, and the other, with the influence on a productive layer, dest roys it, forming new caverns. In additio...