FIELD: oil and gas industry.
SUBSTANCE: device consists of the following: casing with longitudinal axis and through channel; and movable element located in the casing and provided with a through channel and with fluid medium supply hole; J-slot and projection located in J-slot, which guide the movement of movable element relative to the casing; at that, J-slot is located so that it can be rotated between casing and movable element; element with slots along the axis and the second projection located in the element with slots along the axis in order to prevent the rotation of movable element relative to the axis; at that, with slots along the axis between the casing and movable element; locking mechanism located between J-slot and element with slots along the axis; at that, locking mechanism is located between the casing and movable element; at that, movable element is made so that it can move between the first stop position and the second stop position relative to the casing and along the axis; at that, fluid medium supply hole is hydraulically connected to the through channel of the casing and through channel of movable element in order to create fluid medium stream to the well shaft in the first and the second stop positions equally spaced along the axis. The following operations are performed according to the method: lowering of the tool column containing the above device; installation of fluid medium supply hole in the first working place of the well shaft; fixation of the tool column in the well shaft; pumping of fluid medium of underground repair of the well shaft through the tool column to the fluid medium supply hole in the first working place; movement of fluid medium hole relative to the fixed tool column along the axis to the second working place of the well shaft and pumping of fluid medium of underground repair of the well shaft to the second working place equally spaced along the axis.
EFFECT: higher operating reliability of the device and efficiency of the method.
22 cl, 19 dwg
