Hole opener
AssigneePrecise Drilling Components Ltd
InventorsCody D. Graham, James Wheeler, Juan Ottati
Life of this patent
Estimating the term…
Abstract
A hole opener configured for use with a power unit to open a hole. The hole opener comprises a gearbox including a hydraulic inlet fluidly coupled to the power unit and an exciter fluidly coupled to the hydraulic inlet, the exciter being coupled to a gear train including an imbalanced mass which is configured to generate vibrations upon receipt of pressurized hydraulic fluid from the hydraulic inlet. The hole opener further comprises a connector coupled to the gearbox for receiving the vibrations, the connector defining a void, and a hammer slidably coupled to the connector within the void, the hammer configured to receive the vibrations from the connector and to transmit the vibrations to the hole.
Claims27
A hole opener configured for use with a power unit to open a hole, the hole opener comprising:
- a gearbox including
- a hydraulic inlet fluidly coupled to the power unit, and
- an exciter fluidly coupled to the hydraulic inlet, the exciter being coupled to a gear train which is configured to generate vibrations upon receipt of pressurized hydraulic fluid from the hydraulic inlet,
- a plurality of connectors coupled to the gearbox for receiving the vibrations, each of the plurality of connectors defining a void, and
- a plurality of hammers slidably coupled to a corresponding one of the plurality of connectors within the void, the plurality of hammers configured to receive the vibrations from the corresponding one of the plurality of connectors and to transmit the vibrations to the hole.
A hole opener configured for use with a power unit and a Kelly bar to open a hole, the hole opener comprising:
- a gearbox including
- a hydraulic inlet fluidly coupled to the power unit, and
- an exciter fluidly coupled to the hydraulic inlet, the exciter being coupled to a gear train including an imbalanced mass which is configured to generate vibrations upon receipt of pressurized hydraulic fluid from the hydraulic inlet,
- a connector coupled to the gearbox for receiving the vibrations, the connector defining a void,
- a hammer slidably coupled to the connector within the void, the hammer configured to receive the vibrations from the connector and to transmit the vibrations to the hole,
- a barrel at least partially surrounding the gearbox, the barrel including a Kelly-Jeffrey box configured to receive external force from the Kelly bar, and
- a swivel coupled to the Kelly-Jeffrey box and operable to rotate about the Kelly-Jeffrey box, the swivel further including a coupling in fluid communication with the hydraulic inlet and the power unit such that hydraulic fluid passes through the coupling to power the exciter.
A hole opener configured for use with a power unit to open a hole, the hole opener comprising:
- a gearbox including
- a hydraulic inlet fluidly coupled to the power unit, and
- an exciter fluidly coupled to the hydraulic inlet and configured to generate vibrations upon receipt of pressurized hydraulic fluid from the hydraulic inlet;
- and
- a connector coupled to the gearbox for receiving the vibrations, the connector defining a void,
- a hammer slidably coupled to the connector within the void, the hammer configured to receive the vibrations from the connector and to transmit the vibrations to the hole to generate cuttings, and
- an auger configured to collect the cuttings, the auger defining a generally helical void revolved along and about an axis between helical ends a revolve angle extending greater than 360 degrees.
Dependencies are inferred from the claim text.