Cartridge for a rotary drill bit
AssigneeEnteq Technologies PLC
InventorsDaniel MINETT-SMITH, Robert SEDGEMAN
Life of this patent
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Abstract
A cartridge for a drill bit of a rotary directional drilling system, the cartridge comprising: a cartridge housing having an inlet end for receiving drilling fluid from a drill string and an outlet end at which drilling fluid can exit the cartridge housing; a flow diverter configured to selectively control the flow direction of drilling fluid as the drilling fluid exits the cartridge housing; and a bearing assembly for supporting the flow diverter; wherein the bearing assembly comprises at least one bearing located at the outlet end of the cartridge housing.
Claims20
A cartridge for a drill bit of a rotary directional drilling system, the cartridge comprising:
- a cartridge housing having an inlet end for receiving drilling fluid from a drill string and an outlet end at which drilling fluid can exit the cartridge housing;
- a flow diverter configured to selectively control the flow direction of drilling fluid as the drilling fluid exits the cartridge housing;
- and
- a bearing assembly for supporting the flow diverter;
- wherein the bearing assembly comprises at least one bearing located at the outlet end of the cartridge housing.
A cartridge for a drill bit of a rotary directional drilling system, the cartridge comprising:
- a cartridge housing having an inlet end comprising an inlet for receiving a drilling fluid from a drill string and an outlet end comprising an outlet at which the drilling fluid can exit the cartridge housing;
- a flow diverter configured to selectively control the flow direction of the drilling fluid as the drilling fluid exits the cartridge housing;
- and
- a bearing assembly for supporting the flow diverter;
- wherein the bearing assembly comprises at least one bearing located within the cartridge housing and positioned between the inlet of the cartridge housing and the flow diverter.
A method for directional drilling of a well-bore in a formation, the method comprising:
- receiving a cartridge within an internal space of a drill bit, the cartridge comprising a cartridge housing having an inlet end for receiving drilling fluid from a drill string and an outlet end at which drilling fluid exits the cartridge housing;
- and a flow diverter to selectively control the flow direction of drilling fluid as the drilling fluid exits the cartridge housing;
- and
- using the flow diverter to selectively direct at least a portion of the drilling fluid to one or more nozzles of a drill bit.
Dependencies are inferred from the claim text.