Fluid end with threaded dynamic section
AssigneeKerr Machine Co.
InventorsKelcy Jake Foster, Christopher Todd Barnett, John Keith, Nicholas Son
Life of this patent
Estimating the term…
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.
Claims23
A high-pressure pump having a body, the body comprising first and second sections, wherein:
- the first section has an internal bore and a set of external threads, the external threads circumscribing the internal bore;
- and
- the second section has an internal bore and a set of internal threads, the internal threads circumscribing the internal bore;
- wherein the external threads of the first section are configured to mate with the internal threads of the second section such that the internal bore of the first section and internal bore of the second section are aligned to form a longitudinal through-bore, the high-pressure pump comprising:
- a fluid routing plug disposed within the longitudinal through-bore, the fluid routing plug extending from a first side to a second side;
- and
- a two-piece wear ring disposed between the fluid routing plug and the first section;
- in which the two-piece wear ring comprises a first ring and a second ring, wherein:
- the first ring has a first surface, a second surface, an inner surface and an outer surface, the first surface interconnecting the inner surface and the outer surface and abutting the fluid routing plug;
- and
- the second ring has a first surface, a second surface, an inner surface and an outer surface, the first surface of the second ring abutting the second surface of the first ring.
A high-pressure pump having a body, the body comprising first and second sections, wherein:
- the first section has an internal bore and a set of external threads, the external threads circumscribing the internal bore;
- the second section has an internal bore and a set of internal threads, the internal threads circumscribing the internal bore;
- wherein the external threads of the first section are configured to mate with the internal threads of the second section such that the internal bore of the first section and internal bore of the second section are aligned to form a longitudinal through-bore, the high-pressure pump comprising:
- a fluid routing plug disposed within the longitudinal through-bore, the fluid routing plug extending from a first side to a second side;
- and
- a two-piece wear ring disposed between the fluid routing plug and the first section;
- and further comprising:
- a first valve disposed in the internal bore of the first section;
- and
- a valve guide disposed in the internal bore of the first section, the valve guide being seated against the internal bore, such that the first valve is defined by a range of travel, wherein:
- at a first limit of the range of travel, the first valve is seated against the second side of the fluid routing plug;
- and
- at a second limit of the range of travel, movement of the first valve is restricted by the valve guide.
Dependencies are inferred from the claim text.