FIELD: oil and gas industry.
SUBSTANCE: invention relates to development of oil and gas wells and stimulation of deposit, in particular to tool for opening of sliding coupling. Tool comprises engaging element, ball seat and guide head connected in series. Engaging element comprises at least two resilient latches uniformly arranged in a circular direction, and at least one engaging part disposed on elastic latch outer peripheral surface. Engaging element is additionally equipped with the first channel for fluid medium, which passes through the engaging element. Ball seat is equipped with the second channel for fluid medium passing through the ball socket. Inside the second channel of fluid medium there is a supporting surface for the sealing ball. Second channel of fluid medium communicates with the first channel of fluid medium. Guide head is equipped with the third channel of fluid medium passing through the guiding head and communicating with the second channel of fluid medium. Ledge or groove are located on outer peripheral surface of elastic latch.
EFFECT: technical result is improved efficiency of development of wells.
16 cl, 7 dwg
