Abstract: An external filter assembly is shown having a slotted filter section, including an optional upper collar attached below the mounting member, and lower collar attached below the bottom cap of a lower filter element, where each collar includes a plurality of extensions containing magnets. Specifically, in the case of each extension, a bore is formed longitudinally within the extension, and a diametrically magnetic rare earth (neodymium) high-temperature rated magnet is permanently installed within the bore. Thus, with magnets installed in all of the extensions, metal debris passing through the assembly at any location, whether the upper collar or lower collar, is likely to be attracted to and retained by the extensions.

Abstract: A diffuser assembly is provided, comprising a diffuser adapted to reside within a conduit, having an upper member mountable within the conduit and having a fluid inlet port, and a lower section having a diffuser screen; a plurality of stationary diffusing members below the fluid inlet port, wherein the diffusing members are radially oriented relative to a central axis of the diffuser; and (c) a centralizing member above the diffuser screen having a diameter greater than the diffuser screen. The diffuser screen is a cylinder having a plurality of diffuser slots formed therein and a bottom cap having a fluid port; and each of the plurality of diffusing members extends substantially parallel to the central axis.

Abstract: A filter assembly is provided having a resilient member connected between an upper member and a lower section, wherein the resilient member enables the filter screen to vibrate relative to the upper member. A centralizing member is positioned above the filter screen having a diameter greater than the filter screen, wherein the filter screen is a cylinder having a plurality of filter apertures formed therein, and wherein the filter apertures extend substantially parallel to the central axis.

Abstract: A diffuser assembly is provided, comprising a diffuser adapted to reside within a conduit, having an upper member mountable within the conduit and having a fluid inlet port, and a lower section having a diffuser screen; a plurality of stationary diffusing members below the fluid inlet port, wherein the diffusing members are radially oriented relative to a central axis of the diffuser; and (c) a centralizing member above the diffuser screen having a diameter greater than the diffuser screen. The diffuser screen is a cylinder having a plurality of diffuser slots formed therein and a bottom cap having a fluid port; and each of the plurality of diffusing members extends substantially parallel to the central axis. The diffuser assembly may be positioned in different locations, including within a downhole carrier sub inside a well bore, within a drill pipe at the rig floor, or within a conduit in fluid communication between a mixing tank and a pump.

Abstract: A diffuser assembly is provided, comprising a diffuser adapted to reside within a conduit, having an upper member mountable within the conduit and having a fluid inlet port, and a lower section having a diffuser screen. A resilient member is connected between the upper member and the lower section, wherein the resilient member enables the diffuser screen to vibrate relative to the upper member. A plurality of diffusing members is positioned below the resilient member, wherein the diffusing members are oriented relative to a central axis of the diffuser screen. A centralizing member is positioned above the diffuser screen having a diameter greater than the diffuser screen. The diffuser screen is a cylinder having a plurality of diffuser apertures formed therein, the cylinder including a bottom cap having a fluid exit port; and wherein the plurality of diffusing members extends substantially parallel to the central axis.

Abstract: A diffuser assembly is provided which includes an upper mounting member mountable within a conduit and having an fluid inlet port, and a lower section having a diffuser screen. A plurality of radially oriented cutters are removably attached to the diffuser screen, and the cutters may extend internal or external to the diffuser screen. A first set of cutters is mounted at a first selected height along the central axis of the diffuser screen, and wherein a second set of cutters is mounted at a second selected height along the central axis of the diffuser screen. The diffuser assembly may be positioned in different locations, including within a downhole carrier sub inside a well bore, within a drill pipe at the rig floor, or within a conduit in fluid communication between a mixing tank and a pump.

Abstract: A diffuser assembly is provided, comprising a diffuser adapted to reside within a conduit, having an upper member mountable within the conduit and having a fluid inlet port, and a lower section having a diffuser screen. A resilient member is connected between the upper member and the lower section, wherein the resilient member enables the diffuser screen to vibrate relative to the upper member. A plurality of diffusing members is positioned below the resilient member, wherein the diffusing members are oriented relative to a central axis of the diffuser screen. A centralizing member is positioned above the diffuser screen having a diameter greater than the diffuser screen. The diffuser screen is a cylinder having a plurality of diffuser apertures formed therein, the cylinder including a bottom cap having a fluid exit port; and wherein the plurality of diffusing members extends substantially parallel to the central axis.

Abstract: A diffuser assembly is provided which includes an upper mounting member mountable within a conduit and having an fluid inlet port, and a lower section having a diffuser screen. A plurality of radially oriented cutters are removably attached to the diffuser screen, and the cutters may extend internal or external to the diffuser screen. A first set of cutters is mounted at a first selected height along the central axis of the diffuser screen, and wherein a second set of cutters is mounted at a second selected height along the central axis of the diffuser screen. The diffuser assembly may be positioned in different locations, including within a downhole carrier sub inside a well bore, within a drill pipe at the rig floor, or within a conduit in fluid communication between a mixing tank and a pump.

Abstract: A downhole diffuser assembly comprising a diffuser adapted to reside within a carrier sub. The diffuser assembly includes an upper mounting member mountable within the carrier sub and having an fluid inlet port, and a lower section having a diffuser screen. A plurality of cutters are removably attached to the diffuser screen, wherein the cutters are radially oriented relative to a central axis of the diffuser screen. The cutters may extend internal or external to the diffuser screen, depending on the desired downhole conditions. In a preferred embodiment, a first set of cutters is mounted at a first selected height along the central axis of the diffuser screen, and wherein a second set of cutters is mounted at a second selected height along the central axis of the diffuser screen.

Abstract: A downhole diffuser assembly comprising a diffuser adapted to reside within a carrier sub. The diffuser assembly includes an upper mounting member mountable within the carrier sub and having an fluid inlet port, and a lower section having a diffuser screen. A plurality of cutters are removably attached to the diffuser screen, wherein the cutters are radially oriented relative to a central axis of the diffuser screen. The cutters may extend internal or external to the diffuser screen, depending on the desired downhole conditions. In a preferred embodiment, a first set of cutters is mounted at a first selected height along the central axis of the diffuser screen, and wherein a second set of cutters is mounted at a second selected height along the central axis of the diffuser screen.