Fluid end with threaded dynamic section
AssigneeKerr Machine Co.
InventorsKelcy Jake Foster, Christopher Todd Barnett, John Keith, Nicholas Son
Life of this patent
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Abstract
A high-pressure hydraulic fracturing pump. The pump is in-line in orientation, with a static section having a high-pressure discharge chamber and a dynamic section having a dynamic internal bore threaded to the static section. A fluid routing plug is disposed within a bore which includes the dynamic internal bore. The pump is designed for ease of access and for reducing wear. Large, external threads on the dynamic section pair with internal threads on the static section to reduce wear associated with repeated pressurization of hydraulic fracturing fluid found within the pump. Seals and wear rings are found at a nose of the dynamic section to further prevent wear and damage.
Claims20
A high-pressure pump, comprising:
- a fluid end, comprising:
- a static section defining at least one internal flow bore circumscribed by a threaded inwardly-facing surface;
- a dynamic section defining a dynamic internal flow bore, the dynamic section comprising:
- a terminal end having a front-facing nose surface;
- an annular shoulder disposed about a periphery of the dynamic section;
- and
- a threaded outer surface, disposed between the front-facing nose surface and the annular shoulder, wherein the threaded outer surface is complementary to the threaded inwardly-facing surface of the static section such that the at least one internal flow bore and the dynamic internal flow bore are continuous about a central longitudinal axis when the dynamic section is threadedly connected to the static section;
- and
- a fluid routing plug interposed along the central longitudinal axis such that the fluid end is divided by the fluid routing plug into a suction side and a discharge side;
- wherein:
- the dynamic section is axially located relative to the static section by a locating interface;
- and
- the locating interface provides a seal between the dynamic section and the static section.
Dependencies are inferred from the claim text.