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WO2015077001A1 - Soupape pour des pompes de fracturation hydraulique à garnitures en diamant synthétique - Google Patents

Soupape pour des pompes de fracturation hydraulique à garnitures en diamant synthétique Download PDF

Info

Publication number
WO2015077001A1
WO2015077001A1 PCT/US2014/063060 US2014063060W WO2015077001A1 WO 2015077001 A1 WO2015077001 A1 WO 2015077001A1 US 2014063060 W US2014063060 W US 2014063060W WO 2015077001 A1 WO2015077001 A1 WO 2015077001A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
seat
valve body
inserts
insert
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2014/063060
Other languages
English (en)
Inventor
Guido PRATELLI
Riccardo Bagagli
Leonardo Tognarelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of WO2015077001A1 publication Critical patent/WO2015077001A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1022—Disc valves having means for guiding the closure member axially
    • F04B53/1025—Disc valves having means for guiding the closure member axially the guiding means being provided within the valve opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/108—Valves characterised by the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1087—Valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring

Definitions

  • the present disclosure relates in general to valves for use in reciprocating pumps, particularly hydraulic fracturing pumps for subterranean wells.
  • Hydrocarbon producing wellbores are sometimes stimulated to increase the production of hydrocarbons.
  • Hydraulic fracturing, or fracing is one example of stimulation, which involves pressurizing all or a portion of the wellbore to improve communication between the surrounding formation and the wellbore.
  • a frac pump is used to pump a fracing fluid into a cased well.
  • Subterranean fractures occur when the pressure exerted by the pumped fluid exceeds the fracture gradient of the formation strata.
  • the frac pumps must be capable of pumping high volumes of fluid at high pressure.
  • Reciprocating frac pumps have a fluid end and a power end.
  • the fluid end has several plungers that reciprocate within a chamber.
  • the chamber has an intake valve and a discharge valve, both of which open and close with each reciprocation cycle of the plunger.
  • the valves have a valve body that mates with a valve seat.
  • the fluid used for fracing is an acid slurry with a high concentration of sand.
  • Bauxite, carbon dioxide, nitrogen, and additives can also be used. These fluids can be very abrasive and harsh on pump components, and in particular can cause wear on the mating valve body and valve seat surfaces of the intake valve and discharge valve.
  • a valve for a reciprocating pump includes a valve seat having a seat rim and a valve body having a stop surface for mating with the seat rim of the valve seat.
  • the valve body is moveable against and away from the valve seat between closed and opened positions.
  • a seal member surrounds the stop surface of the valve body.
  • At least one valve seat insert is mounted on the seat rim of the valve seat and at least one valve body insert is mounted on the stop surface of the valve body.
  • the valve body inserts and valve seat inserts are formed of a material harder and more wear resistant as compared to the valve seat and valve body.
  • valve seat inserts and the valve body inserts are mounted in a pattern such that at least one valve seat insert will mate with at least one valve body insert at every rotational relation between the valve seat and valve body.
  • a plurality of valve seat inserts can be spaced circumferentially around the seat rim of the valve seat and a plurality of valve body inserts can be spaced circumferentially around the stop surface of the valve body.
  • the seal member can be spaced radially outward and apart from the valve body inserts.
  • the stop surface has an annular area free from valve body inserts located radially outward from the valve body inserts. The seal member circumscribes the annular area.
  • the seat rim of the valve can have an outwardly extended annular seat zone free from valve seat inserts so that the annular area and the seal member of the stop surface can selectively engage the annular seat zone of the seat rim.
  • Each valve body insert can have a top surface for impacting a top surface of one of the valve seat inserts.
  • the top surface of the valve body insert can be positioned so that upon impacting the top surface of the valve seat insert, compression of the seal member is limited.
  • the valve seat inserts and the valve body inserts can be formed of a carbide insert body having a synthetic diamonds layer. In some embodiments, the top surface of each valve body insert does not protrude beyond the stop surface, and the top surface of each valve seat insert does not protrude beyond the seat rim.
  • a valve for a reciprocating pump includes a valve seat having a seat rim, the seat rim having a plurality of mounting holes spaced circumferentially around the seat rim.
  • the valve also includes a valve body having a stop surface, the stop surface having a plurality of mounting holes spaced circumferentially around the stop surface.
  • An insert is located in each mounting hole of the valve seat and valve body.
  • Each insert can be a cylindrical carbide insert body with an exposed top surface formed of a material harder and more wear resistant as compared to the valve seat and valve body.
  • a seal member surrounds the stop surface of the valve body for sealing engagement with the seat rim of the valve seat when the valve is in a closed position.
  • the top surface of at least one valve body insert is positioned to selectively impact the top surface of at least one valve seat insert to limit the compression of the seal member.
  • the seal member can be spaced radially outward and apart from the inserts of the valve body.
  • the stop surface can have an annular area located between the inserts and the seal member, the annular area being free from inserts.
  • the top surface of the each insert can include synthetic diamonds.
  • a pump fluid end includes a fluid end block having a chamber, a suction valve conduit leading to the chamber, and a discharge valve conduit leading away from the chamber.
  • a suction valve is located within the suction valve conduit and a discharge valve is located within the discharge valve conduit, each valve having a valve seat and a valve body.
  • a seal member is located on the valve body for sealing between the valve body and the valve seat.
  • a suction valve spring urges the valve body of the suction valve into a closed position in engagement with the valve seat of the suction valve. Pressure changes within the chamber can cause the valve body of the suction valve to move to an open position away from the valve seat of the suction valve.
  • a discharge valve spring urges the valve body of the discharge valve into closed position in engagement with the valve seat of the discharge valve. Pressure changes within the chamber can cause the valve body of the discharge valve to move to an open position away from the valve seat of the discharge valve.
  • a plurality of inserts are mounted on the valve seat and valve body of at least one valve. The inserts are formed of a material harder and more wear resistant as compared to the valve seat and valve body.
  • the valve seat has a seat rim, the plurality of valve seat inserts being spaced circumferentially around the seat rim.
  • the valve body can have a stop surface, the plurality of valve body inserts being spaced circumferentially around the stop surface.
  • the inserts can be formed of a carbide insert body having a synthetic diamonds layer.
  • the valve body inserts are mounted in a pattern such that at least one valve seat insert will mate with at least one valve body insert at every rotational relation between the valve seat and valve body.
  • Each valve body insert can have a top surface for impacting a top surface of one of the valve seat inserts.
  • the top surface of the valve body insert can be positioned so that upon impacting the top surface of the valve seat insert, compression of the seal member is limited.
  • Figure 1 is a sectional view of a fluid end of a reciprocating pump.
  • Figure 2 is an enlarged sectional view of a valve of the fluid end of Figure 1 in the open position, in accordance with an embodiment of this disclosure.
  • Figure 3 is a top plan view of the valve seat of the valve of Figure 2.
  • Figure 4 is a perspective view of an insert of the valve of Figure 2.
  • a fluid end 11 is a portion of a reciprocating pump of a type that is used for fracing operations. Fluid end 11 has a fluid end block 13 that contains chambers 15. Typically a reciprocating pump will include a fluid end block 13 with three to five separate chambers 15 (only one is shown).
  • a plunger 17 is located in a plunger bore 19 that extends through fluid end block 13 and intersects chamber 15. Each of the individual chambers 15 will have a separate plunger 17.
  • a plunger packing 21 creates a pressure and fluid seal between plunger bore 19 and plunger 17.
  • a first end 23 of plunger 17 will extend into chamber 15 during the stroke cycle.
  • a pony rod 25 connects to a second end 27 of plunger 17.
  • Pony rod 25 is stroked by a power source (not shown) to move plunger 17 between a discharge stroke and an intake stroke.
  • Fluid end block 13 has a suction valve conduit 29 that leads into chamber 15 and a discharge valve conduit 31 that leads away from chamber 15 in a generally opposite direction to suction valve conduit 29.
  • suction valve conduit 29 and discharge valve conduit 31 are coaxial and perpendicular to the plunger bore 19, however in other embodiments, suction valve conduit 29 and discharge valve conduit 31 can be angled relative to each other and at angles other than perpendicular to the plunger bore 19.
  • a suction valve 33 is located within the suction valve conduit 29 and a discharge valve 35 is located within the discharge valve conduit 31. Suction valve 33 selectively allows fluid to enter into chamber 15 from an intake manifold 37. Discharge valve 35 selectively allows fluid to exit chamber 15. Each valve 33, 35 is biased by a spring 39 to a closed position.
  • valve 41 can be either the suction valve 33 or the discharge valve 35.
  • Valve 41 includes a valve body 43 that is typically of metal, such as steel.
  • Valve 41 also includes a valve seat 45 that is also typically of metal, such as steel.
  • Valve seat 45 is a generally tubular member with a seat rim 46 at one end and a circular shoulder 47 on an exterior surface of the valve seat 45.
  • seat rim 46 has a conical annular shape.
  • seat rim 46 can be generally perpendicular to a central axis of discharge valve 35, or can have other alternative shapes.
  • Shoulder 47 engages a circular lip 49 ( Figure 1) on an interior surface of the suction valve conduit 29 and discharge valve conduit 31, as appropriate, to support valve seat 45.
  • a seal ( Figure 1) can be located in a circular groove 51 in the exterior surface of valve seat 45 to create a seal between the valve seat 45 and the fluid end block 13 when the valve 41 is in a closed position.
  • Valve body 43 has a stop surface 55 for mating with seat rim 46 of valve seat 45.
  • stop surface 55 is a sloped annular surface to match the conical annular shape of seat rim 46.
  • stop surface 55 will be shaped to match any alternative shape of seat rim 46.
  • a seal member 57 surrounds stop surface 55. Seal member 57 can be molded in place within a recess in valve body 43 that surrounds and circumscribes stop surface 55.
  • Seal member 57 is not positioned flush with stop surface 55, but instead has an end surface 58 that extends beyond stop surface 55.
  • Seal member 57 can be of a polycarbonate, polyurethane or other seal material known in the art. Seal member selectively engages seat rim 46 to create a seal between the valve body 43 and valve seat 45. Valve body 43 moves against and away from valve seat 45 to move valve 41 between closed and open positions. Valve body 43 can include a guide member 59 that slides axially within an inner bore 61 of valve seat 45.
  • valve seat inserts 63 are mounted on the seat rim 46 of valve seat 45.
  • Valve seat inserts 63 are spaced circumferentially around the seat rim 46 proximate to inner bore 61 of valve seat 45.
  • a plurality of valve body inserts 65 are mounted on the stop surface 55 of the valve body 43. The valve body inserts 65 are spaced circumferentially around the stop surface 55 of the valve body 43.
  • Inserts 63, 65 are mounted and positioned in a pattern that will cause at least one valve seat insert 63 to contact and mate with and at least one valve body insert 65. Because the valve body 43 is free to rotate relative to the valve seat 45, the pattern of inserts 63, 65 will allow for at least one valve seat insert 63 to contact and mate with and at least one valve body insert 65 at every possible rotational relation between the valve seat 45 and the valve body 43.
  • the inserts 63, 65 can be sized and spaced to maximize contact between the valve seat inserts 63 and the valve body inserts 65 when the valve is in the closed position. [0028] In the embodiment of Figure 2, the valve seat inserts 63 are located proximate to the inner bore 61 of valve seat 45.
  • valve body inserts 65 are located on stop surface 55 at a similar radial location to valve seat inserts 63 so that the valve body inserts 65 line up axially with valve seat inserts 63.
  • Seal member 57 is spaced radially outward and apart from the valve body inserts 65. This results in an annular area 69 of stop surface 55 that is free from valve body inserts 65.
  • the seal member 57 circumscribes annular area 69.
  • the seat rim 46 of the valve seat 45 has an extended annular seat zone 71 that extends outward beyond the valve seat inserts 63 so that annular seat zone 71 is free from valve seat inserts 63.
  • insert 64 can be either valve seat insert 63 or valve body insert 65, Insert 64 is shown as cylindrical member with a circular cross section. In alternative embodiments, insert 64 could have other alternative shape or cross section. In another alternative embodiment, instead of a plurality of individual inserts, inserts 63 65 could comprise a single ring shaped member, one such ring shaped insert could be mounted on the seat rim 46 and another of such ring shaped insert can be mounted on valve seat 45. Insert 64 is formed of a material harder and more wear resistant as compared to the material of the valve seat 45 and valve body 43.
  • Insert 64 could include, for example an exposed top surface 67 that is formed of synthetic diamonds, such as polycrystalline diamond, or other ultra-hard material that is tough enough to withstand the repeated impact between the valve seat 45 and valve body 43 and be chemically inert to withstand the harsh nature of the fracturing fluid. Top surface 67 is deposited on an insert body 68, which may be, for example of tungsten carbide or other carbide. Insert 64 can be mounted in valve seat 45 and valve body 43 by brazing insert body 68 into mounting holes 73 of the valve seat 45 and valve body 43. Alternatively, inserts 64 can be press or interference fit into mounting holes 73.
  • inserts 64 are formed of a hard, wear resistant material, after the useful life of the valve, inserts 64 may still be in good condition and could be removed and recycled for use on other valves 41.
  • the protruding end surface 58 of seal member 57 will contact seat rim 46 and will deform due to the force applied to valve body 43.
  • the exposed top surface 67 of inserts 63, 65 can be flush, or slightly recessed within the seat rim 46 and stop surface 55, respectively. Therefore the annular area 69 can engage and mate with the annular seat zone 71 of the seat rim 46 to transfer the force to seat rim 46.
  • a slight gap will exist between inserts 63, 65, at least initially.
  • wear will be encountered on, due to the erosive action of the fluids, the acidity and general harshness of the fluids, and the impact forces. In currently existing valves, over time, this will result in seal member 57 deforming more than originally. The additional deformation shortens the life of seal member 57. Once the seal member 57 fails and begins to leak, a high pressure stream of fluids passing by seal member 57 will quickly damage and destroy the components of valve 41.
  • the top surface 67 of the valve body inserts 65 will impact the top surface 67 of the valve seat inserts 63. This will reduce further wear on the seat rim 46 and stop surface 55. Seat rim 46 and stop surface 55 can continue to meet and mate to assist in forming a seal between the valve body 43 and valve seat 45, but in subsequent valve 41 closings, inserts 63, 65 will transfer the impact loads. Because inserts 63, 65 are of wear resistance material, the top surface 67 of the valve body inserts 65 will impact the top surface 67 of the valve seat inserts 63 without any additional deformation of seal member 57.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

L'invention concerne une soupape pour une pompe à mouvement alternatif comprenant un siège de soupape ayant un bord de siège et un corps de soupape ayant une surface d'arrêt à des fins d'accouplement avec le bord de siège du siège de soupape. Le corps de soupape est mobile contre et à distance du siège de soupape entre une position fermée et une position ouverte. Un élément d'étanchéité entoure la surface d'arrêt du corps de soupape. Au moins une garniture de siège de soupape est montée sur le bord du siège du siège de soupape et au moins une garniture de corps de soupape est montée sur la surface d'arrêt du corps de soupape. Les garnitures du corps de soupape et le siège de soupape sont formés à partir d'un matériau plus dur et plus résistant à l'usure par rapport au siège de soupape et au corps de soupape.
PCT/US2014/063060 2013-11-21 2014-10-30 Soupape pour des pompes de fracturation hydraulique à garnitures en diamant synthétique Ceased WO2015077001A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000061A ITCO20130061A1 (it) 2013-11-21 2013-11-21 Valvola per pompe idrauliche a fratturazione con inserti in diamante sintetico
ITCO2013A000061 2013-11-21

Publications (1)

Publication Number Publication Date
WO2015077001A1 true WO2015077001A1 (fr) 2015-05-28

Family

ID=50001108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/063060 Ceased WO2015077001A1 (fr) 2013-11-21 2014-10-30 Soupape pour des pompes de fracturation hydraulique à garnitures en diamant synthétique

Country Status (2)

Country Link
IT (1) ITCO20130061A1 (fr)
WO (1) WO2015077001A1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019032618A1 (fr) * 2017-08-07 2019-02-14 S.P.M. Flow Control, Inc. Siège de soupape doté d'un intérieur de manchon durci et d'un extérieur métallique
US10344757B1 (en) 2018-01-19 2019-07-09 Kennametal Inc. Valve seats and valve assemblies for fluid end applications
US10391557B2 (en) 2016-05-26 2019-08-27 Kennametal Inc. Cladded articles and applications thereof
WO2019169312A1 (fr) * 2018-03-01 2019-09-06 S.P.M. Flow Control, Inc. Ensemble soupape de pompe alternative
CN111795166A (zh) * 2019-04-04 2020-10-20 肯纳金属公司 阀门、阀门总成以及其应用
US10808851B1 (en) 2019-06-10 2020-10-20 Halliburton Energy Services, Inc. Multi-material frac valve poppet
US20200332792A1 (en) * 2017-04-18 2020-10-22 St9 Gas And Oil, Llc Frac pump valve assembly
CN112166270A (zh) * 2018-05-03 2021-01-01 D·K·西廷 带密封件的阀和阀座
US11566713B2 (en) 2021-04-09 2023-01-31 Kennametal Inc. Valve seat assembly having mating surfaces with a reverse taper angle
US11566718B2 (en) 2018-08-31 2023-01-31 Kennametal Inc. Valves, valve assemblies and applications thereof
US11578711B2 (en) 2019-11-18 2023-02-14 Kerr Machine Co. Fluid routing plug
US11578710B2 (en) 2019-05-02 2023-02-14 Kerr Machine Co. Fracturing pump with in-line fluid end
US11585455B2 (en) 2013-11-26 2023-02-21 Spm Oil & Gas Inc. Valve seats for use in fracturing pumps
US11635151B2 (en) 2019-11-18 2023-04-25 Kerr Machine Co Modular power end
US11635068B2 (en) 2019-11-18 2023-04-25 Kerr Machine Co. Modular power end
US11644018B2 (en) 2019-11-18 2023-05-09 Kerr Machine Co. Fluid end
US11808364B2 (en) 2021-11-11 2023-11-07 Kerr Machine Co. Valve body
US11920583B2 (en) 2021-03-05 2024-03-05 Kerr Machine Co. Fluid end with clamped retention
US12454951B2 (en) 2019-07-18 2025-10-28 Kennametal Inc. Wear resistant fluid ends

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20150880A1 (it) 2015-05-21 2016-11-21 Nuovo Pignone Srl Valvola a fungo

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US5249600A (en) * 1991-12-31 1993-10-05 Blume George H Valve seat for use with pumps for handling abrasive fluids
US7070166B1 (en) * 2005-01-11 2006-07-04 Blume George H Powdered metal inlay
WO2008096213A1 (fr) * 2007-02-07 2008-08-14 Sasol-Lurgi Technology Company (Proprietary) Limited Équipement de manipulation de matières solides
WO2013014550A1 (fr) * 2011-07-26 2013-01-31 Sasol Technology (Proprietary) Limited Equipement de manutention de matières solides

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249600A (en) * 1991-12-31 1993-10-05 Blume George H Valve seat for use with pumps for handling abrasive fluids
US7070166B1 (en) * 2005-01-11 2006-07-04 Blume George H Powdered metal inlay
WO2008096213A1 (fr) * 2007-02-07 2008-08-14 Sasol-Lurgi Technology Company (Proprietary) Limited Équipement de manipulation de matières solides
WO2013014550A1 (fr) * 2011-07-26 2013-01-31 Sasol Technology (Proprietary) Limited Equipement de manutention de matières solides

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11585455B2 (en) 2013-11-26 2023-02-21 Spm Oil & Gas Inc. Valve seats for use in fracturing pumps
US10391557B2 (en) 2016-05-26 2019-08-27 Kennametal Inc. Cladded articles and applications thereof
US20200332792A1 (en) * 2017-04-18 2020-10-22 St9 Gas And Oil, Llc Frac pump valve assembly
WO2019032618A1 (fr) * 2017-08-07 2019-02-14 S.P.M. Flow Control, Inc. Siège de soupape doté d'un intérieur de manchon durci et d'un extérieur métallique
US10718441B2 (en) 2017-08-07 2020-07-21 S.P.M. Flow Control, Inc. Valve seat with a hardened sleeve interior and a metal exterior
US10851775B2 (en) 2018-01-19 2020-12-01 Kennametal Inc. Valve seats and valve assemblies for fluid end applications
US10344757B1 (en) 2018-01-19 2019-07-09 Kennametal Inc. Valve seats and valve assemblies for fluid end applications
US10954938B2 (en) 2018-01-19 2021-03-23 Kennametal Inc. Valve seats and valve assemblies for fluid end applications
US11156221B2 (en) 2018-01-19 2021-10-26 Kennametal Inc Valve seats and valve assemblies for fluid end applications
WO2019169312A1 (fr) * 2018-03-01 2019-09-06 S.P.M. Flow Control, Inc. Ensemble soupape de pompe alternative
CN112166270A (zh) * 2018-05-03 2021-01-01 D·K·西廷 带密封件的阀和阀座
US11566718B2 (en) 2018-08-31 2023-01-31 Kennametal Inc. Valves, valve assemblies and applications thereof
CN111795166A (zh) * 2019-04-04 2020-10-20 肯纳金属公司 阀门、阀门总成以及其应用
US11592011B2 (en) 2019-05-02 2023-02-28 Kerr Machine Co. Fracturing pump with in-line fluid end
US11952986B2 (en) 2019-05-02 2024-04-09 Kerr Machine Co. Fracturing pump arrangement using a plunger with an internal fluid passage
US11578710B2 (en) 2019-05-02 2023-02-14 Kerr Machine Co. Fracturing pump with in-line fluid end
WO2020251641A1 (fr) * 2019-06-10 2020-12-17 Halliburton Energy Services, Inc. Champignon de soupape de fracturation multi-matériau
US10808851B1 (en) 2019-06-10 2020-10-20 Halliburton Energy Services, Inc. Multi-material frac valve poppet
US12454951B2 (en) 2019-07-18 2025-10-28 Kennametal Inc. Wear resistant fluid ends
US11635068B2 (en) 2019-11-18 2023-04-25 Kerr Machine Co. Modular power end
US11644018B2 (en) 2019-11-18 2023-05-09 Kerr Machine Co. Fluid end
US11859611B2 (en) 2019-11-18 2024-01-02 Kerr Machine Co. Fluid routing plug
US11635151B2 (en) 2019-11-18 2023-04-25 Kerr Machine Co Modular power end
US11578711B2 (en) 2019-11-18 2023-02-14 Kerr Machine Co. Fluid routing plug
US11920583B2 (en) 2021-03-05 2024-03-05 Kerr Machine Co. Fluid end with clamped retention
US11566713B2 (en) 2021-04-09 2023-01-31 Kennametal Inc. Valve seat assembly having mating surfaces with a reverse taper angle
US11808364B2 (en) 2021-11-11 2023-11-07 Kerr Machine Co. Valve body

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