Spm Oil & Gas Inc.

S.p.m. Flow Control, Inc.

Chandu Kumar

Jacob A Bayyouk

Joseph H Byrne

Kourosh Momenkhani

Donald Keith Plemons

Edward Charles Kotapish

Bryan C Wagner

Joe Allen Sutton

John M McCrady

Jeffrey Haiderer

John Mccrady

Connor Landrum

Richard David Peer

Wesley P Clark

Justin Rand Cummings

Benjamin D Engstrom

John S Marquez

Sean P Moran

William Walter Marshall, Iv

William Walter Marshall

Johnny Eric DeLeon, Ii

Daryl J Belshan

Ralph E Harris

Adalberto Cortes

Christopher Buckley

Christopher B Buckley

Alireza Atabaie

Chih Hau Chen

Christopher P Buckley

John M Mccrady

A fluid end for a reciprocating pump assembly includes a fluid end body defining an access opening having access opening threads formed on an inner surface thereof and extending between an inner threaded portion and an outer threaded portion. A blunt start is formed at the outer threaded portion of the access opening threads. The fluid end also includes a retainer nut having retainer nut threads formed on an outer surface of the retainer nut. To install the retainer nut in the fluid end, a first threaded portion of the retainer nut threads is configured to engage with the access opening threads before the second threaded portion. When the retainer nut is in a fully engaged position in the access opening, a second threaded portion of the retainer nut threads is offset from the blunt start of the access opening threads to define a circumferential offset distance therebetween.

System and method for reduced thread stress for buttress style threads used in frac pump fluid ends

A packing gland assembly may include a packing gland housing defining a bore extending from a front end to a rear end of the packing gland housing. The packing gland housing may include a flange having a front face, that defines the front end of the packing gland housing, and a rear face. The flange may define a plurality of apertures that extend from the front face of the flange to the rear face of the flange. The packing gland housing may include a mating neck extending from the flange to the rear end of the packing gland housing. The mating neck may define a stepped circumferential surface having one or more steps, and may define a circumferential groove.

Removable packing gland assembly

An example system includes a fluid end having a block, a suction bore formed in the block, a suction valve seat disposed within the suction bore, and a suction valve disposed within the suction bore, the suction valve, in a closed position, being configured to contact the suction valve seat to seal the suction bore. The system also includes a rod configured to engage the suction valve, the rod being moveable between a first position and a second position, wherein in the first position the suction valve is in the closed position, and in the second position, engagement of the rod with the suction valve causes the suction valve to be in an open position.

System and apparatus for unloading well stimulation pumps

This disclosure presents a pumping system that includes a plunger disposed in a pressure cylinder that is operable to be displaced in a suction and a discharge stroke. A packing seal is disposed between the plunger and the pressure cylinder. A valve block is disposed separate from the pressure cylinder and houses a suction valve and a discharge valve. A conduit fluidly couples the pressure cylinder with the valve block.

Pumping system having remote valve blocks

A linear pump includes a centrally-disposed drive system and a plunger having a center portion coupled to the drive system, and first and second fluid ends disposed at the first and second ends of the plunger. The pump further includes first and second packing seals each being disposed about the plunger to isolate fluids within the respective first and second fluid ends. First and second adapters are disposed at an interface between the drive system and respective first and second fluid ends, each adapter incorporating an angled deflector configured to deflect and redirect high-pressure fluids escaping past the respective packing seal toward the drive system.

Linear FRAC pump drive system safety deflector

A quick-connector assembly for joining abutting flanged ends of two tubular members includes first and second connector portions joined by a rotatable hinge having a hinge pin coupling the first connector portion and the second connector portion so that the first and second connector portions encircle about abutting flanged ends of the tubular members when the first and second connector portions are in a closed position. Further, a stand having a bracket with at least one hole for accommodating the hinge pin is designed to at least partially support the weight of the connector assembly and the flanged ends of the tubular members.

Hinged quick-release connector

An arrangement for supporting one or more bearings of a crankshaft assembly of a hydraulic fracturing pump includes a frame and one or more bearing supports. The frame is of a first material and defines one or more bearing support profiles. The bearing supports are of a second material different from the first material of the frame. The bearing supports are cast-in-place within the corresponding bearing support profiles of the frame and are configured to be in contact with an outer race of the corresponding bearings of the crankshaft assembly. Compared to the first material of the frame, the second material of the bearing supports is more effective at preventing slippage of the bearings.

Arrangement for supporting crankshaft bearings in hydraulic fracturing pump

A keyless timing gear assembly for securing a bull gear to a crankshaft of a power end of a reciprocating pump assembly, the keyless timing gear assembly including at least one actuator, an expansion member and at least one wedge member disposed between the at least one actuator and the expansion member, the wedge member having a sloped surface to slideably engage a corresponding sloped surface on the expansion member such that, in response to actuation of the at least one actuator, the at least one wedge member exerts a force on the expansion member for securing a bull gear to a crankshaft.

Keyless gear timing assembly for a reciprocating pump

An intermittent flushing plunger packing assembly is described herein. The packing assembly includes a plurality of annular seals disposed about the plunger configured to reciprocate along a linear axis within the fluid bore of the pump, and an annular packing nut disposed circumferentially about the plunger and configured to retain the plurality of annular seals and adjust a combined height of the plurality of annular seals. A selected one of the plurality of annular seals proximate to the fluid cylinder of the pump has a flushing fluid chamber in fluid communication with a flushing fluid port coupled to a first one-way check valve allowing a pressurized flushing fluid to be introduced and retained within the flushing fluid chamber and creating a fluid barrier to prevent frac fluid in the fluid cylinder from bypassing the annular seals.

Intermittent flushing plunger packing assembly

A plate segment for a reciprocating pump power end frame assembly, the power end frame assembly having a pair of end plate segments and at least one middle plate segment disposed between the end plate segments. The plate segment consists of the middle plate segment or one of the pair of end plate segments and includes a plate having a front wall, a rear wall, a top wall, a bottom wall and a pair of sidewalls and at least one opening forming a bearing support surface, the opening extending through the plate. The plate segment further includes at least one extension extending from at least one of the sidewalls of the plate at a position to align with and contact a corresponding extension on an adjacently positioned plate.

Power end frame assembly for reciprocating pump

A power end frame assembly for a reciprocating pump that includes a first and second end plate segment each including annular bearing support surfaces configured to support a crankshaft bearing assembly. At least one middle plate segment is disposed between the first and second end plate segments and includes an annular bearing support surface configured to support a crankshaft bearing assembly. The annular bearing support surfaces of the first and second end plate segments and the at least one middle plate segment each have a diameter and are coaxially aligned. The diameter of at least one of the first and second end plate segments is different from the diameter of the at least one middle plate segment to facilitate insertion and removal of the crankshaft bearing assembly from the power end frame assembly.

Bearing system for reciprocating pump and method of assembly

A bull gear is provided for a reciprocating pump. The bull gear includes a hub extending around an axis of rotation of the bull gear. The bull gear includes a rim having a plurality of helical gear teeth extending along a circumference of the rim. The rim extends a width along the axis of rotation from a first side portion to a second side portion that is opposite the first side portion. The bull gear includes a web connecting the hub to the rim. The web extends a radial length from the first side portion of the rim to the hub.

Pump gear

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.

Reciprocating pump

A skid for supporting a reciprocating pump assembly, the reciprocating pump assembly including a power end frame assembly having a pair of end plate segments and a plurality of middle plate segments disposed between the end plate segments. The end plate segments each have at least a pair of feet and the middle plate segments each having at least one foot. The skid includes a base and a plurality of pads extending from the base. At least a portion of the plurality of pads correspond to the end plate segment feet and at least another portion of the plurality of pads correspond to the at least one foot of each middle plate segment.

Growing community of inventors

Fort Worth, TX, United States of America

Chandu Kumar