Patent ID: 11891886
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 6:
7. The device according to claim 6, wherein: the hollow rod is further equipped with protrusions and radial holes; the hydraulic fracturing port is further equipped with: a hollow housing and fracturing holes, said hollow housing defines an outer surface and an inner surface thereof, and said hollow housing is furnished with radial longitudinal holes providing for axial movement of the protrusions of said hollow rod to prevent rotation thereof; and a liner, mounted on the outer surface of said hollow housing, and capable of axial movement thereon; wherein: the inner surface of said hollow housing is furnished with an annular cavity, providing for hydraulic communication with the radial holes of said hollow rod; the liner is provided with a number of windows for hydraulic fracturing; and the liner is provided with holes for coupling thereof with the protrusions of said hollow rod.