INVESTIGATION OF STABILITY LOSSES OF THE PACKER WITH A GIRDLE-CYLINDRICAL-CONICAL CONSTRUCTION

In the paper stability losses of packer with a girdle construction have been investigated by taking into account compactness mechanism. Expanding and constricting cases conical surface studied, problem has solved via numerical estimation using finite differences method. With this purpose, continuity condition deformation written for (cylindrical packer) added to condition. first approach solution carried out in boundary junction nodes (where cylindrical surfaces combine), however, second During packing process limit studied time construction. Keywords: packing, well cylindrical-conical mode deformation, critical pressure packing.