PROCESS OF RECONSTRUCTION OF ENTIRENESS OF DISTURBED CASING STRINGS IN HOLES DRILLED WITH DIRECTIONAL INCLINATION Russian patent published in 2000 - IPC

FIELD: repair and insulation operations in holes. SUBSTANCE: according to invention disturbed interval should by overlapped. In case of formation of crack of hydraulic rupture of horizontal orientation at depth of disturbance of entireness of casing string and in case of displacement of ends of pipes of casing string along axis of hole and in horizontal plane casing string itself is used to shut off disturbance of casing string by way of reduction of aperture value of horizontal crack of hydraulic rupture thanks to withdrawal or removal of fluid of rupture from it and to bringing ends of pipes of this string closer one to another. EFFECT: enhanced efficiency of repair operations. 3 dwg