Abstract: A hydraulic fracturing spread system has modular high-pressure fracturing fluid manifold assemblies which couple to form a large trunk line for collecting and conveying high pressure fracturing fluid toward the well bore. Oil-hydraulic intensifier pump units integrated with the modular manifold assemblies increase the fracturing fluid pressure into the trunk line. The manifold assemblies may be configured differently from one to the other and coupleable horizontally and/or vertically.

Abstract: A seal assembly has a first component retained by a retaining member abutting a second component, the first component having a retaining member, the retaining member having a plurality of tabs, the plurality of tabs extending outwardly to engage a surface of the second component, thereby preventing withdrawal of the first component from the second component.

Abstract: A hydraulic fracturing spread system has modular high-pressure fracturing fluid manifold assemblies which couple to form a large trunk line for collecting and conveying high pressure fracturing fluid toward the well bore. Oil-hydraulic intensifier pump units integrated with the modular manifold assemblies increase the fracturing fluid pressure into the trunk line. The manifold assemblies may be configured differently from one to the other and coupleable horizontally and/or vertically.

Abstract: A hydraulic fracturing spread system has modular high-pressure fracturing fluid manifold assemblies which couple to form a large trunk line for collecting and conveying high pressure fracturing fluid toward the well bore. Oil-hydraulic intensifier pump units integrated with the modular manifold assemblies increase the fracturing fluid pressure into the trunk line. The manifold assemblies may be configured differently from one to the other and coupleable horizontally and/or vertically.

Abstract: A valve and seat set has a seal coupled to the valve body, the seal surface comprising irregularities to allow pressure to propagate in-between the mating surfaces when pressure from the inside of the valve is equal to, or greater than, pressure from the outside of the valve. This allows the seal to lift in response to minimal differential pressure in the intended flow direction (from inside the valve), while effectively sealing pressure in the reverse direction (from outside the valve).

Abstract: A seal assembly has a first component retained by a retaining member abutting a second component, the first component having a retaining member, the retaining member having a plurality of tabs, the plurality of tabs extending outwardly to engage a surface of the second component, thereby preventing withdrawal of the first component from the second component.

Abstract: A continuous length of formed metal retaining material can be cut to the partial or full circumference or perimeter of at least one assembly component and disposed in a groove of at least one assembly component to form a retaining ring engaging at least one other assembly component. The retaining ring prohibits lateral and rotational movement.

Abstract: A valve and seat set has a seal coupled to the valve body, the seal surface comprising irregularities to allow pressure to propagate in-between the mating surfaces when pressure from the inside of the valve is equal to, or greater than, pressure from the outside of the valve. This allows the seal to lift in response to minimal differential pressure in the intended flow direction (from inside the valve), while effectively sealing pressure in the reverse direction (from outside the valve).

Abstract: A continuous length of formed metal retaining material can be cut to the partial or full circumference or perimeter of at least one assembly component and disposed in a groove of at least one assembly component to form a retaining ring engaging at least one other assembly component. The retaining ring prohibits lateral and rotational movement.

Abstract: A seal and method of manufacturing same that provides increased service life and is preferably configured to provide both a dynamic seal and a static seal while demonstrating improved rigidity.

Abstract: A seal and method of manufacturing same that provides increased service life and is preferably configured to provide both a dynamic seal and a static seal while demonstrating improved rigidity.

Abstract: Seals and apparatuses incorporating seals are provided. In one embodiment an apparatus is provided including two relatively machine elements, the first machine (204) element having a gland (202) formed therein. The gland has a first axial wall, a second axial wall and a radial wall disposed therebetween. The apparatus further includes a sealing ring (208) disposed at least partially within the gland, the sealing ring having a radially inner face (212) in contact with the first machine elements, a radially outer face (217), a first axial face (216), a second axial face (214) spaced apart from the first axial face, an angled face (218) extending between the first axial face and the radially outer face, and at least one channel (220) formed in the angled face and extending from the first axial face to the radially outer face. A loading ring (210) is configured to maintain contact with the angled face of the sealing ring, the first axial wall of the gland and the radial wall of the gland.

Abstract: According to one embodiment, a composite seal may include a first, substantially annular seal element having an upper body portion, a neck portion, and an axial protrusion. The upper body portion includes opposing inclined surfaces extending toward the neck portion defining a first angle. The axial protrusion includes opposing inclined surfaces extending toward an axial end of the axial protrusion defining a second angle, wherein the first angle and the second angle are substantially similar. The composite seal may further include a second, substantially annular seal element having a mouth portion, a neck portion and a recess portion, wherein the axial protrusion is configured to be complementarily engaged with the recess portion in an interlocking manner.

Abstract: A sleeve element having at least one end region configured to be biased into a laterally adjacent recess formed in one of a piston element surface and a bore surface is disclosed. A seal assembly is disclosed including two sleeve elements, each sleeve element having at least one end region disposed adjacent a recess formed in one of the piston element surface and the bore surface, the at least one end region being configured for deflection thereinto. A seal assembly including one sleeve element, wherein the sleeve element includes end regions thereof, each end region disposed adjacent a recess formed in one of the piston element surface and the bore surface, the end region being configured for deflection thereinto is also disclosed. Further, an energizer may be disposed generally within a recess. Pressure relief and equalization structures for a sleeve element and seal assembly are also disclosed, as is a method of sealing.

Abstract: A buffer seal adapted for use in a seal assembly including at least a primary seal, the seal assembly being adapted to provide a fluid seal between two relatively moving machine elements, such as a piston or rod of a first machine element moving within a cylindrical bore of a second machine element. The buffer seal comprises a sealing element and a resiliently deformable biasing element. The material, shape, and/or volume of the biasing element are selected to provide a desired biasing force sufficient to maintain a surface of the sealing element in sealing contact with a surface of the first machine element and to simultaneously maintain another surface of the sealing element in sealing contact with a surface of the second machine element. In one embodiment, the buffer seal may be configured such that axial movement and tilting of the buffer seal within its associated gland are substantially eliminated.