Abstract: A lubrication system for a frac pump includes a lubrication system housing, a lubricant tank held by the lubrication system housing, a heating device held by the lubrication system housing, a cooling device held by the lubrication system housing, and a filtration device held by the lubrication system housing. The lubrication system housing is configured to be at least one of mounted to a frac pump housing of the frac pump or held within the frac pump housing.

Abstract: In some implementations, a flowline connector assembly includes a first flowline member having a first cylindrical passageway, and a first stop extending radially outward from an outer surface of the first flowline member, and a second flowline member having an annular configuration defining a second cylindrical passageway. The flowline connector assembly may include a pin, having an annular configuration, configured to be inserted into the first cylindrical passageway and the second cylindrical passageway. The flowline connector assembly may include a collar where an inner surface of the collar at a first end is configured to contact a first side of the first stop, and the inner surface of the collar at a second end is configured to contact a first side of a second stop to connect the first flowline member with the second flowline member, where the second stop extends radially from the pin or the second flowline member.

Abstract: A plug valve including a valve body defining an internal cavity, a first passage, and a second passage, a plug defining a third passage and being rotatable within the internal cavity, and an insert extending within the internal cavity between the valve body and the plug. The insert defines an interior surface and an opening aligned with the first passage of the valve body. The insert may also define a sealing surface extending around the opening and standing in relief against the interior surface to sealingly engage the plug. In addition to, or instead of, the sealing surface, the insert may define a projection at least partially defining the interior surface. In addition, a boot may be connected to the valve body and interlocked with the projection to prevent, or at least reduce, rotation of the insert relative to the valve body when the plug rotates within the internal cavity.

Abstract: According to one aspect, a hammer union includes a female sub; a male sub; and a wing nut that is concentrically disposed about the female and male subs. The wing nut includes a body having first and second end surfaces, and an exterior surface extending therebetween; a passage extending through the body from the first to second end surface that defines an interior surface of the body; an internal shoulder formed by the interior surface; an internal threaded connection that extends from the first end surface and towards the internal shoulder; and lugs extending radially from the exterior surface. In one aspect, the body has a wall thickness defined between the interior and exterior surfaces, with a greater wall thickness at the internal shoulder than at the first end surface; the internal threaded connection has a full-root radius; and a lug that extends along the axial length of the body.

Abstract: A reciprocating pump includes a frame for a power end, a skid support structure integrally formed at a base of the power end frame to provide proper support and rigidity for the pump power end, where the integral skid support structure has a plurality of struts forming a series of chambers.

Abstract: A valve assembly includes a valve body that defines an internal flow passageway between an inlet and an outlet, and a valve seat disposed in the valve body with a sealing surface perpendicular to the flow passageway. The valve assembly further includes a clapper pivotally correlated to the valve seat having a closed configuration extending across the valve seat configured to substantially close off the flow passageway, and an open configuration configured to substantially allow fluid flow in the flow passageway from the inlet to the outlet through the valve body. An annular valve seat seal is disposed within an annular groove formed in a surface of the valve seat, where the annular valve seat seal is disposed at an interface between the valve seat and the clapper when the clapper is in the closed configuration.

Abstract: A gearbox is coupled to a power end housing of a reciprocating pump, where the gearbox includes at least one support member having a first end securely affixed to the gearbox, and the at least one support member having a second end securely affixed to an immobile part of the reciprocating pump for supporting the gearbox and resisting movement of the gearbox relative to the reciprocating pump.

Abstract: This disclosure provides a valve seat having cladded surfaces of high hardness in order to improve the service life of valve seats. The cladded surfaces may include various materials of favorable mechanical properties for mitigating failure mechanisms known for common valve seats (e.g., having a common base metal throughout). In one example, the cladded surfaces are created using an additive manufacturing process, such as laser metal deposition. The cladded surfaces offer advantages including metallurgical bonding, localized low heat input at the laser focus (thus enabling accurate control of temperature and mitigating undesirable heat treatment effects), ductility in middle layers for increasing impact resistance, variable cladding thickness (optionally exceeding 1 mm), increased hardness by material and fusing temperature selections, corrosion resistance, modification of mechanical properties of the same selected material, and allowing for sensor embedment.

Abstract: An electrically-actuated linear pump includes a linear actuator housing coupled to a screw housing. A rod is configured to linearly translate within screw housing and the linear actuator housing, the rod includes a threaded portion disposed axially between a first plunger portion and a second plunger portion. A linear actuator is disposed within the linear actuator housing and includes a drive mechanism in meshed engagement with the threaded portion of the rod, the meshed engagement operable to linearly translate the rod, the linear actuator being electrically-actuated. The pump includes a first fluid end and a second fluid end disposed opposite the first fluid end, each fluid end configured to receive and discharge a fluid. Translation of the rod toward the first fluid end discharges the fluid from the first fluid end and simultaneously draws the fluid into the second fluid end.

Abstract: A valve member for an inlet or outlet valve assembly of a reciprocating pump assembly includes a valve body and a seal member. The valve body comprises a first body surface and a second body surface that extend circumferentially about the valve body. The valve body defines a body axis and an annular cavity. The seal member is positioned at least partially within the annular cavity of the valve body such that an outer seal portion of the seal member extends between the first body surface and the second body surface of the valve body. The outer seal portion of the seal member comprises a first seal surface and a second seal surface. The first body surface, the first seal surface, and the second seal surface extend at different angles relative to the body axis.

Abstract: A syringe assembly for a hydraulic fracturing system includes a syringe having a material chamber, a base fluid chamber, and a piston. The material chamber is configured to be fluidly connected to a fluid conduit. The piston retracts to draw material into the material chamber. The piston extends to push the material into the fluid conduit. The syringe assembly includes a diverter fluidly connected to the base fluid chamber and moveable between first and second positions. The first position of the diverter fluidly connects the base fluid chamber to a base fluid reservoir of the hydraulic fracturing system and fluidly disconnects the base fluid chamber from an outlet of a frac pump of the hydraulic fracturing system. The second position of the diverter fluidly connects the base fluid chamber to the outlet of the frac pump and fluidly disconnects the base fluid chamber from the base fluid reservoir.

Abstract: A frac tree coupled to a wellhead is connected to either flowback equipment or zipper modules using a single straight-line connection of pipes, valves, and/or frac iron that define a straight-line pathway for fluid, gas, or flowback materials. The disclosed single straight-line connections referenced herein may be used in pressure pumping operations to deliver hydraulic fracturing fluid (“frack fluid”) to a frac tree for delivery to a wellhead or for carrying flowback from the wellhead to a flowback-collecting equipment. To dramatically reduce the wear-and-tear on the frac tree, blocks at or near the top of the frac trees are strategically lined with a high-strength wear-resistant material internally at points where frack fluid or flowback changes direction to flow toward or away from the single straight-line connections.

Abstract: A dual circuit lubrication system for a power end of a reciprocating pump that includes a lubrication pump that supplies lubrication fluid to a high pressure lubrication circuit and a low pressure lubrication circuit. The high pressure lubrication circuit is fluidly coupled to a crankshaft to supply lubrication fluid to journal surfaces associated with the crankshaft at a first lubrication fluid pressure. The crankshaft drives a crosshead coupled to a plunger to displace fluid from a fluid end of the reciprocating pump. The low pressure lubrication circuit is fluidly coupled to supply the lubrication fluid to a plurality of roller bearing surfaces associated with the crankshaft at a second lubrication fluid pressure. The first lubrication fluid pressure is greater than the second lubrication fluid pressure.

Abstract: An apparatus according to which a subterranean formation in which a wellbore extends is hydraulically fractured, the apparatus comprising first and second manifolds, the first manifold including first and second flow lines adapted to be in fluid communication with first and second pumps, respectively, the first pump being adapted to pressurize fluid received from the first flow line, and the second pump being adapted to pressurize fluid received from the second flow line, and the second manifold including a third flow line adapted to convey pressurized fluid from the first and second pumps to the wellbore to hydraulically fracture the subterranean formation in which the wellbore extends. The apparatus is adapted to be connected to another apparatus used to hydraulically fracture the subterranean formation in which the wellbore extends by moving one, or both, of the first and second flow lines relative to the third flow line.

Abstract: A valve assembly for a high-pressure fluid pump is described herein. The valve assembly includes a valve seat disposed in a cylindrical bore in a fluid end of the pump, and a valve body that includes: a top plate defining at least one pressure window, a lower sealing surface disposed below the top plate, and a dampener disk disposed between the top plate and the lower sealing surface, the dampener disk configured to expand in response to pressure exerted thereon via the top plate and through the at least one pressure window.

Abstract: A mobile fracking pump trailer 100 includes a gas turbine engine 102 and fracking pump 104, and torque converter 114 that fluidly couples the gas turbine engine 102 to the fracking pump 104. The mobile fracking pump trailer 100 further includes a first reduction gearing 118 connected between the gas turbine engine 102 and the torque converter 114 and a first power takeoff 120 connected to first reduction gearing 118. An electrical machine 128 is connected to the first power takeoff 120 for selectively starting the gas turbine engine 102 and generating electrical power to power the mobile fracking pump trailer 100 after the gas turbine engine 102 has been started.

Abstract: A packing assembly providing a seal point configurable at multiple locations. The packing assembly includes a soft bed having at least one energizing ring and at least one seal ring. The assembly includes a spacer ring sealable with the at least one energizing ring. The assembly further includes at 1=least one adapter ring abutting either end of the soft bed to provide two seal locations relative to the spacer ring.

Abstract: A method of manufacturing a fluid end block for a high pressure reciprocating pump, including forming, from a single-piece forging of a steel alloy, a main body having an outwardly facing body forward face, an outwardly facing body rear face opposite the body forward face, and opposing side surfaces connecting the forward face and the rear face, and a plurality of chambers; forming a web portion protruding outwardly from the outwardly facing body forward face, the web portion having an outwardly facing web forward face and a curvilinear side surface; forming a plurality of bosses protruding from the web forward face and having a forward facing end; and forming a plunger bore extending through each of the plurality of bosses from the forward facing end of the respective boss to one of the plurality of chambers in the main body portion, each plunger bore configured to receive a reciprocating plunger.

Abstract: A universal monitoring system applicable to a variety of hydraulic fracturing equipment includes an accelerometer mounted on a housing of a positive displacement pump and configured to sense a vibration associated with the positive displacement pump on start-up and generate a wake-up signal. A processor is communicatively coupled to the accelerometer and configured to initiate execution upon receiving the wake-up signal. A pressure strain gauge is mounted directly on the pump housing and is configured to sense deformity in the pump housing caused by alternating high and low pressures within the pump housing and generate sensor data. The processor is configured to receive the sensor data from the pressure strain gauge and configured to analyze the sensor data and determine a cycle count value for the positive displacement pump, and there is at least one communication interface coupled to the processor configured to transmit the sensor data and cycle count value to another device.

Abstract: An integrated pump and manifold assembly includes a support structure, a manifold assembly mounted on the support structure, and one or more frac pumps. The manifold assembly includes one or more low pressure lines and a high pressure discharge line including a discharge outlet configured to fluidly couple to a wellhead. The one or more frac pumps are each mounted on the support structure and include a frac pump inlet and a frac pump outlet. The one or more frac pumps are configured to be in fluid communication with the one or more low pressure lines and the high pressure discharge line. The one or more low pressure lines, the high pressure discharge line, and the one or more frac pumps are integrated as a single unit and mounted on the support structure.