Abstract: A pump fluid end having a reciprocating element a discharge valve assembly, a suction valve assembly, and a suction valve stop. The reciprocating element is disposed at least partially within a reciprocating element bore of the pump fluid end. The suction valve assembly is coupled with a front end of the reciprocating element. The suction valve stop is positioned within the reciprocating element bore such that the suction valve stop contacts and applies a closing force to the suction valve assembly when the suction valve assembly is stuck open at the end of a discharge stroke of the reciprocating element.

Abstract: A pump fluid end having a reciprocating element a discharge valve assembly, a suction valve assembly, and a suction valve stop. The reciprocating element is disposed at least partially within a reciprocating element bore of the pump fluid end. The suction valve assembly is coupled with a front end of the reciprocating element. The suction valve stop is positioned within the reciprocating element bore such that the suction valve stop contacts and applies a closing force to the suction valve assembly when the suction valve assembly is stuck open at the end of a discharge stroke of the reciprocating element.

Abstract: A pump fluid end having a reciprocating element a discharge valve assembly, a suction valve assembly, and a suction valve stop. The reciprocating element is disposed at least partially within a reciprocating element bore of the pump fluid end. The suction valve assembly is coupled with a front end of the reciprocating element. The suction valve stop is positioned within the reciprocating element bore such that the suction valve stop contacts and applies a closing force to the suction valve assembly when the suction valve assembly is stuck open at the end of a discharge stroke of the reciprocating element.

Abstract: A pump assembly includes a power end, a fluid end, and a valve assembly located in the fluid end. The valve assembly includes a valve seat and a valve member including a valve body connected to a valve stem and reciprocatable during operation to engage the valve seat. The valve member is moveable during operation such that the orientation of the valve body relative to the valve seat is adjustable.

Abstract: A valve assembly comprising a valve guide and one or more weights coupled to and/or integral with the valve guide. The valve assembly may further comprising a valve body and a valve stem connecting the valve body to the valve guide. The valve assembly may be disposed in a fluid end of a positive displacement pump that is operated to flow a wellbore servicing fluid into a wellbore.

Abstract: A pump fluid end having a reciprocating element a discharge valve assembly, a suction valve assembly, and a suction valve stops. The reciprocating element is disposed at least partially within a reciprocating element bore of the pump fluid end. The suction valve assembly is coupled with a front end of the reciprocating element. The suction valve stop is positioned within the reciprocating element bore such that the suction valve stop contacts and applies a closing force to the suction valve assembly when the suction valve assembly is stuck open at the end of a discharge stroke of the reciprocating element.

Abstract: A hose for a reciprocating pump, the hose comprising: a first end and a second end separated by a length (L) along a centerline of the hose, wherein the first end reciprocates with a reciprocating element of the reciprocating pump during operation of the reciprocating pump; an inner surface and an outer surface separated by a thickness; and a variable bend radius wherein a bend radius of a first section of the hose is different from a bend radius of at least one second section of the hose, such that, during operation of the reciprocating pump, a stress on the first end of the hose, the second end of the hose, or both the first end of the hose and the second end of the hose is reduced relative to that of a hose that does not contain the variable bend radius.

Abstract: A system for installing replacement plungers in plunger pumps used in the hydrocarbon industry includes an elongated, cylindrical plunger body with an elongated circular tube disposed around the cylindrical plunger body. An end wall having an aperture encloses one end of the tube with an axially movable plate adjacent the end wall between the end wall and an end of the plunger body. A removable cap is mounted to the opposite end of the tube to enclose the plunger body within the tube. The outer diameter of the tube fits in the plunger bore of a pump. To install the replacement plunger, the cap is removed and the tube is inserted into the plunger bore until the tube abuts packing within the tube. Once positioned, an axial force is applied to the movable plate to urge the plunger body from the tube and into engagement with the packing.

Abstract: A valve assembly having a valve body, a hardened insert, a sealing insert, and a carrier. The hardened insert is cylindrical and comprises a primary sealing surface. The sealing insert is cylindrical and comprises an initial sealing surface. The carrier has an inside surface. The hardened insert and the sealing insert are coupled to the carrier. In a closed configuration of the valve assembly, the valve body contacts the primary sealing surface of the hardened insert and the initial sealing surface of the sealing insert to prevent fluid flow through the valve assembly, and in an open configuration, the valve body is separated from the primary sealing surface of the hardened insert and the initial sealing surface of the sealing insert to allow fluid flow through the valve assembly.

Abstract: A pump fluid end comprising: a reciprocating element disposed within a reciprocating element bore and having an outer surface; a reciprocating element packing positioned within the reciprocating element bore; and optionally a sleeve positioned within the reciprocating element bore and having an inner surface proximate the outer surface of the reciprocating element, wherein at least a portion of the outer surface of the reciprocating element and/or the inner surface of the sleeve is coated with a multi-layer surface coating comprising a plurality of layers including: a first layer in contact with the at least a portion of the outer surface of the reciprocating element and/or the inner surface of the sleeve; and a second layer disposed over at least a portion of the first layer; and wherein at least one of the plurality of layers has a different visual appearance and/or material composition than another of the plurality of layers.

Abstract: A system and method for installing replacement plungers in plunger pumps used in the hydrocarbon industry. The system includes an elongated, cylindrical plunger body with an elongated circular tube disposed around the cylindrical plunger body. An end wall having an aperture formed therein encloses one end of the tube with an axially movable plate disposed within the tube adjacent the end wall between the end wall and the first plunger end of the plunger body. A removable cap is mounted to the opposite end of the tube to enclose and secure the plunger body within the tube. The outer diameter of the tube is sized to fit in the plunger bore of a pump. To install the replacement plunger, the cap is removed from the end of the tube and the tube is inserted into the plunger bore until the tube abuts packing within the tube. Once positioned, an axial force is applied to the movable plate in order to urge the plunger body from the tube and into engagement with the packing.

Abstract: A pump fluid end includes a body that defines a plunger bore and a working fluid bore that intersects the plunger bore to form a cross bore. A packing bore is defined in the plunger bore and includes a packing sleeve bore, a taper relief bore, and a transition bore. The packing sleeve bore transitions to the taper relief bore at a radial shoulder and the taper relief bore transitions to the plunger bore across the transition bore. The transition bore extends between an external corner contiguous with the plunger bore and an internal corner contiguous with the taper relief bore and at least one of the external and internal corners is rounded and exhibits a radius. The packing bore is treated with a surface pre-stressing treatment.

Abstract: A hose assembly for a pump comprising a pressurized hose, wherein the pressurized hose is exposed to pressure during at least a part of the operation of the pump, and a leak detection system comprising an outer hose concentrically positioned about at least a portion of the pressurized hose such that an annular chamber exists between the pressurized hose and the outer hose, whereby a leak of the pressurized hose can be detected by monitoring the hose assembly and/or a leak sensor associated therewith.

Abstract: A system and method for infrared (IR) thermography examination of a specimen under test are disclosed. One such method comprises one of imparting heat energy to the specimen under test with a heat energy source or removing heat energy from the specimen under test with a heat sink. Respectively, one of the heat energy source or the heat sink is removed. Using IR images, areas of surface heat transfer discontinuity of a surface temperature distribution of the specimen under test are identified to determine a distribution of a filler material in a base material of the specimen under test.

Abstract: A positive displacement pump comprising a lubricant manifold comprising a first fluid pathway, a housing comprising a second fluid pathway in fluid communication with the first pathway, a crosshead slide within the housing and comprising a third fluid pathway in fluid communication with the second pathway; a crosshead configured to reciprocate within the crosshead slide, the crosshead comprising a fourth fluid pathway in fluid communication with the third pathway, the crosshead further comprising a wrist-pin having a fifth fluid pathway in fluid communication with the fourth pathway, a crankshaft within the housing, and a connecting rod disposed between the crosshead and the crankshaft and connected thereto, wherein the connecting rod comprises a sixth fluid pathway displaced from the connecting rod centerline and in fluid communication with the fifth pathway, and wherein the crankshaft end of the connecting rod comprises a seventh fluid pathway in fluid communication with the sixth pathway.

Abstract: A pumping system comprising a motor, wherein the motor has an operating speed, a pump coupled to the motor, wherein the pump has a volumetric displacement, a fluid end coupled to the pump, wherein the fluid end is operable to draw fluid from an input and provide fluid to an output, and a control system operable to regulate the motor and the pump in order to provide fluid to the output at a selected pressure and flow rate within a continuous range of pressures and flow rates between the peak horsepower output and peak torque output of the motor.

Abstract: A pumping system comprising a motor, wherein the motor has an operating speed, a pump coupled to the motor, wherein the pump has a volumetric displacement, a fluid end coupled to the pump, wherein the fluid end is operable to draw fluid from an input and provide fluid to an output, and a control system operable to regulate the motor and the pump in order to provide fluid to the output at a selected pressure and flow rate within a continuous range of pressures and flow rates between the peak horsepower output and peak torque output of the motor.