Composite valve seat system and method
AssigneeVulcan Industrial Holdings, LLC
InventorJason David Smith
Life of this patent
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Abstract
A valve assembly for a fracturing pump includes a valve seat having a bore extending therethrough, the valve seat including a strike face at a top region opposite a bottom region, at least a portion of the strike face formed by an insert positioned within a groove formed in the valve body. The valve assembly also includes a bore liner arranged within the bore, at least a portion of an axial length of the bore liner covering at least a portion of the ceramic to form a barrier between the insert and the bore. The valve assembly further includes a valve member positioned to reciprocate within the bore, the valve member moving between an open position and a closed position, wherein at least a portion of the valve member engages at least a portion of the strike face in the closed position.
Claims18
A valve assembly for a fracturing pump, comprising:
- a valve seat having a bore extending therethrough, the valve seat including a strike face at a top region opposite a bottom region, at least a portion of the strike face formed by an insert positioned within a groove formed in the valve body;
- a bore liner arranged within the bore, at least a portion of an axial length of the bore liner covering at least a portion of the insert to form a barrier between the insert and the bore;
- a valve member positioned to reciprocate within the bore, the valve member moving between an open position and a closed position, wherein at least a portion of the valve member engages at least a portion of the strike face in the closed position;
- and
- a guide of the bore liner extending longitudinally along at least a second portion of the axial length, the guide including a recessed portion that receives at least a portion of a guide leg of the valve member.
A valve seat for use in a fracturing pump, comprising:
- a first body, including at least a portion of a bore and having a first diameter;
- a second body, coupled to the first body, the second body comprising:
- a tapered portion having a downward slope from a second diameter to an axis;
- a groove formed in the tapered portion, the groove extending from at least a second portion of the bore radially outward toward the second diameter;
- and
- an insert, positioned within the groove, the insert having a sloped region substantially conforming to the downward slope of the tapered portion;
- and
- a bore liner extending through the bore along at least a portion of both the first body and the second body, the bore liner positioned to overlap at least a portion of the insert, and the bore liner including a guide extending longitudinally along at least a portion of an axial length of the bore liner, the guide including a recessed portion that receives at least a portion of a guide leg of a valve member positioned to reciprocate within the bore.
A method for forming a valve seat, comprising:
- providing a valve seat, the valve seat including a first body and a second body coupled together, the first body having a larger diameter than the second body, the second body including a tapered portion;
- forming a groove in the tapered portion, the groove extending radially outward from the bore;
- positioning an insert within the groove;
- securing the insert within the groove;
- positioning a bore liner along at least a portion of the bore, the bore liner arranged to overlap at least a portion of the insert, the bore liner including a guide extending longitudinally along at least a portion of an axial length of the bore liner, the guide including a recessed portion that receives at least a portion of a guide leg of a valve member positioned to reciprocate within the bore;
- and
- securing the bore liner to at least one of the bore or the insert.
Dependencies are inferred from the claim text.