Mechanical perforator
AssigneeExacta-Frac Energy Services, Inc.
InventorJoze John Hrupp
Life of this patent
Estimating the term…
Abstract
A mechanical perforator includes a perforator module and a slip module. The perforator module has perforator blades that may be forced outwardly to perforate a well casing joint after slips of the slip module has been deployed to bite the well casing and anchor a lower end of the mechanical perforator in the well casing.
Claims17
A mechanical perforator comprising:
- at least one perforator blade supported within a perforator module having a perforator body that supports upper and lower perforator end cones that respectively slideably support a perforator blade holder for each of the at least one perforator blade, a linear force generator operatively connected to an uphole side of the perforator module to drive the perforator blades of the perforator module, and a slip module operatively connected to a downhole side of the perforator module to selectively anchor a downhole end of the mechanical perforator in a cased well bore, and a slip module body supported on a crossover body mandrel of a crossover body connected to a lower end of the perforator body.
A mechanical perforator comprising:
- a perforator module having three perforator blades adapted to mechanically perforate a well casing, the perforator module having a perforator body connected to a linear force generator, the perforator body supporting an upper perforator end cone threadedly connected to a linear force generator mandrel, and a lower perforator end cone that is supported on a free end of the linear force generator mandrel, the upper and lower perforator end cones respectively have three equally spaced apart T-slots that respectively receive a T-slider on opposed ends of three perforator blade holders that respectively support one of the three perforator blades;
- the linear force generator providing linear force to drive the three blades of the perforator module through a sidewall of the well casing;
- and, a slip module connected to an opposite side of the perforator module, the slip module releasably locking the mechanical perforator in the well casing when 400-500 psi of fluid pressure is pumped into a central passage of the mechanical perforator and a crossover sleeve having an upper end connected to a lower end of the lower perforator end cone and a lower end that supports a lower end of the perforator body.
A mechanical perforator comprising a perforator module and a slip module, the perforator module having a plurality of perforator blades respectively adapted to perforate a well casing joint, the perforator module including a perforator body that supports an upper perforator end cone and a lower perforator end cone, the upper and lower perforator end cones respectively comprising a plurality of T-slots, each T-slot receiving a T-slider on an end of a perforator blade holder, each perforator blade holder receiving and supporting a perforator blade, and a linear force generator connected to the perforator body and adapted to reciprocate the upper perforator end cone from a retracted condition to a deployed condition in which the respective perforator blades perforate the well casing joint;
- and a crossover sleeve having an upper end connected to a lower end of the lower perforator end cone and a lower end that supports a lower end of the perforator body.
Dependencies are inferred from the claim text.