Fluid system with a proppant mixing pump
AssigneeSPM Oil & Gas Inc.
InventorAndrew HANSON
Life of this patent
Estimating the term…
Abstract
A fluid system may include a first fluid path including a blender configured to mix fluid with proppant. The fluid system may include a second fluid path, fluidly isolated from the blender, including a pump. The fluid system may include a mixing pump configured to receive first fluid containing proppant from the first fluid path and second fluid free of proppant from the second fluid path. The mixing pump may include a cylinder defining a bore. The mixing pump may include a first intake valve configured to control flow of the first fluid, a second intake valve configured to control flow of the second fluid, and an outlet valve configured to control flow of a mixture of the first fluid and the second fluid.
Claims20
A fluid system, comprising:
- a first fluid path including a blender configured to mix fluid with proppant;
- a second fluid path including a pump, the second fluid path fluidly isolated from the blender;
- and
- a mixing pump configured to receive first fluid containing proppant from the first fluid path and second fluid free of proppant from the second fluid path, the mixing pump comprising:
- a cylinder defining a bore in fluid communication with a first fluid intake, a second fluid intake, and a fluid outlet;
- a first intake valve configured to control flow of the first fluid containing proppant through the first fluid intake;
- a second intake valve configured to control flow of the second fluid free of proppant through the second fluid intake;
- and
- an outlet valve configured to control flow of a mixture of the first fluid containing proppant and the second fluid free of proppant through the fluid outlet.
A pump, comprising:
- a cylinder defining a bore in fluid communication with a first fluid intake, a second fluid intake, and a fluid outlet;
- a piston configured to reciprocate within the bore of the cylinder;
- a first intake valve configured to control flow of a first fluid containing proppant through the first fluid intake,
- the first intake valve configured to open during a downstroke of the piston;
- a second intake valve configured to control flow of a second fluid free of proppant through the second fluid intake,
- the second intake valve configured to open after, or concurrently with, closing of the first intake valve;
- and
- an outlet valve configured to control flow of a mixture of the first fluid containing proppant and the second fluid free of proppant through the fluid outlet.
A pump system, comprising:
- a prime mover;
- a camshaft system mechanically coupled to the prime mover;
- and
- a pump driven by the prime mover, the pump comprising:
- a cylinder defining a bore in fluid communication with a first fluid intake, a second fluid intake, and a fluid outlet;
- a piston configured to reciprocate within the bore of the cylinder;
- a first intake valve configured to control flow of a first fluid containing proppant through the first fluid intake,
- the camshaft system configured to cause the first intake valve to open and to close during a downstroke of the piston;
- a second intake valve configured to control flow of a second fluid free of proppant through the second fluid intake,
- the camshaft system configured to cause the second intake valve to open during the downstroke of the piston after, or concurrently with, closing of the first intake valve, and to close during an upstroke of the piston;
- and
- an outlet valve configured to control flow of a mixture of the first fluid containing proppant and the second fluid free of proppant through the fluid outlet,
- the camshaft system configured to cause the outlet valve to open at least for a duration in which the second intake valve is open.
Dependencies are inferred from the claim text.