Jetting system for drilling operations
AssigneeSaudi Arabian Oil Company
InventorsMuaath Salem Bajunaid, Omar M. Alhamid
Life of this patent
Estimating the term…
Abstract
A system includes a drill bit, nozzle, at least two mechanical rods, and at least one hinge. The drill bit has a drill bit bore and is configured to drill a borehole. The nozzle is disposed within the drill bit bore and has a nozzle bore configured to convey a fluid. The at least two mechanical rods are disposed along a surface of the nozzle bore. The proximal mechanical rod among the at least two mechanical rods is fixed to the surface. The distal mechanical rod and the nozzle bore form a nozzle aperture. The at least one hinge is configured to connect the at least two mechanical rods together longitudinally. The distal mechanical rod is configured to rotate around the at least one hinge in response to the fluid to adjust the nozzle aperture.
Claims19
A system comprising:
- a drill bit having a drill bit bore and configured to drill a borehole;
- a nozzle disposed within the drill bit bore and having a nozzle bore configured to convey a fluid;
- a first mechanical rod fixed to a surface of the nozzle bore;
- a second mechanical rod disposed along the surface,
- wherein the second mechanical rod and the nozzle bore form a nozzle aperture;
- and
- a hinge configured to connect the first mechanical rod and the second mechanical rod together longitudinally,
- wherein the second mechanical rod is configured to rotate around the hinge in response to the fluid to adjust the nozzle aperture.
A system comprising:
- a drill bit having a drill bit bore and configured to drill a borehole;
- a nozzle disposed within the drill bit bore and having a nozzle bore configured to convey a fluid;
- a first mechanical rod fixed to a surface of the nozzle bore;
- a second mechanical rod disposed along the surface;
- a third mechanical rod disposed along the surface,
- wherein the third mechanical rod and the nozzle bore form a nozzle aperture;
- and
- two hinges configured to connect the first mechanical rod, the second mechanical rod, and the third mechanical rod together longitudinally,
- wherein the third mechanical rod is configured to rotate around the two hinges in response to the fluid to adjust the nozzle aperture.
A method comprising:
- drilling, using a system, a borehole at a first rate of penetration, the system comprising:
- a drill bit having a drill bit bore,
- a nozzle disposed within the drill bit bore and having a nozzle bore,
- a first mechanical rod fixed to a surface of the nozzle bore;
- a second mechanical rod disposed along the surface,
- wherein the second mechanical rod and the nozzle bore form a nozzle aperture, and
- at least one hinge configured to connect the first mechanical rod and the second mechanical rod together longitudinally;
- pumping, using a drilling fluid system, a fluid at a first flow rate through the nozzle bore and out the nozzle aperture;
- rotating, in response to the fluid, the second mechanical rod around the at least one hinge;
- adjusting, by rotation of the second mechanical rod, the nozzle aperture.
Dependencies are inferred from the claim text.