A piping riser protector for protectively covering the end portion of a riser assembly that includes a larger diameter central pipe and a plurality of smaller diameter peripheral pipes connected by a flange includes a polymeric body that protectively covers inner and outer surfaces of an end portion
A piping riser protector for protectively covering the end portion of a riser assembly that includes a larger diameter central pipe and a plurality of smaller diameter peripheral pipes connected by a flange includes a polymeric body that protectively covers inner and outer surfaces of an end portion of the larger diameter pipe and provides enclosures that cover the exposed end portion of the smaller diameter pipe sections in between the end of each smaller diameter pipe section and the flange.
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The invention claimed is: 1. A riser assembly, comprising; a) a central pipe having a first diameter, an inner surface, an outer surface, an open ended bore, a wall thickness and opposed ends; b) a plurality of peripheral pipes, each having an open ended bore and a second diameter that is smaller t
The invention claimed is: 1. A riser assembly, comprising; a) a central pipe having a first diameter, an inner surface, an outer surface, an open ended bore, a wall thickness and opposed ends; b) a plurality of peripheral pipes, each having an open ended bore and a second diameter that is smaller than the first diameter; c) at least one flange that joins the central pipe and peripheral pipes together to define a multi-pipe structure, said at least one flange having a central opening occupied by the central pipe and a plurality of circumferentially spaced apart peripheral openings that generally surround the central opening, at least some of said peripheral openings being occupied by a said peripheral pipe, said structure having opposed end portions, one said end portion being a pin end portion; d) a protective cover affixed to the central pipe, said cover being a polymeric body that includes an inner cylindrical portion that occupies a part of said open ended bore of said central pipe and being next to the inner surface of the central pipe and an outer cylindrical portion that surrounds one of said opposed ends of said central pipe, a shoulder that connects the inner and outer cylindrical portions of said polymeric body, a circular disk that is connected to the inner cylindrical surface and that occupies a position in the bore of the central pipe; e) said cover including a plurality of radially extending enclosures that each are connected to and extend from the outer cylindrical portion to the periphery of one of the flanges next to the pin end portion, each said enclosure comprising a longitudinally extending wall connected to the outer cylindrical portion and a transversely extending wall that is connected to the longitudinally extending wall and to the outer cylindrical portion, each enclosure having an edge that is positioned next to said next to said one of the flanges next to the pin end portion flange; and f) wherein each peripheral pipe has a free end that is enveloped by one of said plurality of radially extending enclosures. 2. The riser assembly of claim 1 wherein the polymeric body is of a polyurethane material. 3. The riser assembly of claim 1 wherein the inner cylindrical portion and the outer cylindrical portion each have a thickness and the thicknesses are of different dimensions. 4. The riser assembly of claim 1 wherein the inner cylindrical portion and the outer cylindrical portion each have a wall thickness, one having a wall thickness that is greater than the wall thickness of said central pipe. 5. The riser assembly of claim 1 wherein the outer cylindrical portion engages said at least one flange. 6. The riser assembly of claim 1 wherein the longitudinally extending wall engages said at least one flange. 7. The riser assembly of claim 1 wherein the enclosures have differing sizes. 8. A riser assembly comprising: a) a central pipe having a first diameter, an inner surface, an outer surface, an open ended bore, a wall thickness and opposed ends; b) a plurality of smaller diameter peripheral pipes, each having an open ended bore and a second diameter that is smaller than the first diameter; c) at least one flange that joins the central pipe and peripheral pipes together to define a multi-pipe structure, said at least one flange having a central opening occupied by the central pipe and a plurality of circumferentially spaced apart peripheral openings that generally surround the central opening, at least some of said peripheral openings being occupied by a said peripheral pipe, said structure having opposed end portions one said end portion being a pin end portion; d) a protective cover affixed to the central pipe, said cover being a polymeric body that includes an inner cylindrical portion that occupies a part of said open ended bore of said central pipe and being next to the inner surface of the central pipe and an outer cylindrical portion that surrounds one of said opposed ends of said central pipe, a shoulder that connects the inner and outer cylindrical portions of said polymeric body, a circular disk that is connected to the inner cylindrical surface and that occupies a position in the bore of the central pipe; and e) said cover including a plurality of radially extending enclosures that each are connected to and extend from the outer cylindrical portion to the periphery of one of the flanges next to the pin end portion, each said enclosure comprising a longitudinally extending wall connected to the outer cylindrical portion and a transversely extending wall that is connected to the longitudinally extending wall and to the outer cylindrical portion, each enclosure having an edge that is positioned next to said one of the flanges next to the pin end portion flange; f) a plurality of fasteners that connect the inner cylindrical portion to the inner surface of the central pipe. 9. The riser assembly of claim 8 wherein said plurality of fasteners are spaced circumferentially apart. 10. The riser assembly of claim 8 wherein the inner cylindrical portion has at least one internally threaded opening and at least one of said plurality of fasteners threadably attaches to the inner cylindrical section at the internally threaded opening. 11. The riser assembly of claim 8 wherein the inner cylindrical portion has internally threaded openings and said plurality of fasteners threadably attaches to the inner cylindrical portion at the internally threaded openings. 12. A riser assembly, comprising; a) a central pipe having a first diameter, an inner surface, an outer surface, an open ended bore, a wall thickness and opposed ends; b) a plurality of smaller diameter peripheral pipes, each having an open ended bore and a second diameter that is smaller than the first diameter; c) at least one flange that joins the central pipe and peripheral pipes together to define a multi-pipe structure, said at least one flange having a central opening occupied by the central pipe and a plurality of circumferentially spaced apart peripheral openings that generally surround the central opening, at least some of said peripheral openings being occupied by a said peripheral pipe, said structure having opposed end portions, one said end portion being a pin end portion; d) a protective cover affixed to the central pipe, said cover being a polymeric body that includes an inner cylindrical portion that occupies a part of said open ended bore of said central pipe and being next to the inner surface of the central pipe and an outer cylindrical portion that surrounds one of said opposed ends of said central pipe, a shoulder that connects the inner and outer cylindrical portions of said polymeric body, a circular disk that is connected to the inner cylindrical surface and that occupies a position in the bore of the central pipe; and e) said cover including a plurality of radially extending enclosures that each are connected to and extend from the outer cylindrical portion to the periphery of one of the flanges next to the pin end portion, each said enclosure comprising a longitudinally extending wall connected to the outer cylindrical portion and a transversely extending wall that is connected to the longitudinally extending wall and to the outer cylindrical portion, each enclosure having an edge that is positioned next to said one of the flanges next to the pin end portion flange; wherein there is an annular space in between the inner and outer cylindrical portions that is substantially filled by a part of said central pipe. 13. A riser assembly, comprising: a) a central pipe having a first diameter, an inner surface, an outer surface, an open ended bore, a wall thickness and opposed ends; b) a plurality of smaller diameter peripheral pipes, each having an open ended bore and a second diameter that is smaller than the first diameter; c) at least one flange that joins the central pipe and peripheral pipes together to define a multi-pipe structure, said at least one flange having a central opening occupied by the central pipe and a plurality of circumferentially spaced apart peripheral openings that generally surround the central opening, at least some of said peripheral openings being occupied by a said peripheral pipe, said structure having opposed end portions, one said end portion being a pin end portion; d) a protective cover affixed to the central pipe, said cover being a polymeric body that includes an inner cylindrical portion that occupies a part of said open ended bore of said central pipe and being next to the inner surface of the central pipe and an outer cylindrical portion that surrounds one of said opposed ends of said central pipe, a shoulder that connects the inner and outer cylindrical portions of said polymeric body, a circular disk that is connected to the inner cylindrical surface and that occupies a position in the bore of the central pipe; and e) said cover including a plurality of radially extending enclosures that each are connected to and extend from the outer cylindrical portion to the periphery of one of the flanges next to the pin end portion, each said enclosure comprising a longitudinally extending wall connected to the outer cylindrical portion and a transversely extending wall that is connected to the longitudinally extending wall and to the outer cylindrical portion, each enclosure having an edge that is positioned next to said one of the flanges next to the pin end portion flange; wherein the longitudinally extending wall is generally U-shaped. 14. A riser assembly, comprising; a) a centrally positioned pipe having first a diameter, an inner surface, an outer surface, an open ended bore, a wall thickness and opposed ends; b) a plurality of peripheral pipes, each having an open ended bore and a second diameter smaller than the first diameter; c) a generally circular disk flange that joins the central pipe and peripheral pipes together to define a multi-pipe structure, said flanges having a central opening occupied by the central pipe and a plurality of circumferentially spaced apart peripheral openings that generally surround the central opening, at least some of said peripheral openings being occupied by one of said peripheral pipes, said structure having opposed end portions, one end portion being a pin end portion; d) a protective cover affixed to the central, pipe, said cover being a non-metallic body that includes an inner cylindrical portion that occupies a part of the open ended bore of the central pipe and being next to the inner surface and an outer cylindrical portion that surrounds one of said opposed ends of said central pipe, a shoulder that connects the inner and outer cylindrical portions of said non-metallic body, said cover including a circular disk that is connected to the inner cylindrical surface and that occupies a position in the bore of the central pipe; e) said cover including a plurality of radially extending enclosures that extend from the outer cylindrical portion to the periphery of the flange, each said enclosure comprising a longitudinally extending wall and a transversely extending wall that are connected to each other and to the outer cylindrical portion, each enclosure having an edge that is positioned next to said flange during use; and t) a plurality of fasteners that connect the inner cylindrical portion to the inner surface of the central pipe. 15. A piping riser assembly, comprising; a) a centrally positioned pipe having a first diameter, an inner surface, an outer surface, an open ended bore, a wall thickness and opposed ends; b) a plurality of smaller diameter peripheral pipes, each having an open ended bore; c) at least one flange that joins the centrally positioned and smaller peripheral pipes together to define a multi-pipe structure, each of said at least on flange having a central opening occupied by the centrally positioned pipe and a plurality of circumferentially spaced apart peripheral openings that generally surround the central opening, at least some of said peripheral openings being occupied by one of said peripheral pipes, said multi-pipe structure having opposed end portions, one end portion being a pin end portion; d) a protective cover affixed to the centrally positioned pipe, said cover being a unitary polymeric body that includes an inner cylindrical portion that occupies a part of said open ended bore and being next to the inner surface of the centrally positioned pipe and an outer cylindrical portion that surrounds one of said opposed ends of said centrally positioned pipe, a transverse annular shoulder that connects the inner and outer cylindrical portions of said polymeric body; e) the cover including a circular disk that is connected to the inner cylindrical surface of the centrally positioned pipe and that is spaced longitudinally from the annular shoulder and that occupies a position in the bore of the centrally positioned pipe; f) said cover including a plurality of radially extending enclosures that each are connected to and extend from the outer cylindrical portion to a position next to the periphery of one of said at least one flange and next to the pin end portion, each said enclosure comprising a longitudinally extending wall connected to the outer cylindrical portion and a transversely extending wall that is connected to the longitudinally extending wall and to the outer cylindrical portion, each enclosure having an edge that is positioned next to said at least one flange, and g) wherein each peripheral pipe has a free end that is enveloped by one of said radially extending enclosures. 16. The piping riser assembly of claim 15 wherein the polymeric body is of a polyurethane material. 17. The piping riser assembly of claim 15 wherein the inner cylindrical portion and the outer cylindrical portion each have a thickness and the thicknesses are of different dimensions. 18. The piping riser assembly of claim 15 wherein the inner cylindrical portion and the outer cylindrical portion each have a wall thickness, one having a wall thickness that is greater than the wall thickness of the centrally positioned pipe. 19. The piping riser assembly of claim 15 wherein the outer cylindrical portion engages one of said at least one flange. 20. The piping riser assembly of claim 15 wherein the longitudinally extending wall engages one of said at least one flange. 21. The piping riser assembly of claim 15 wherein there is an annular space in between the inner and outer cylindrical portions that is substantially filled by a part of the centrally positioned pipe. 22. The piping riser assembly of claim 15 wherein the longitudinally extending wall is generally U-shaped. 23. The piping riser assembly of claim 15 wherein the enclosures have differing sizes. 24. A piping riser assembly, comprising; a) a central pipe having a first diameter, an inner surface, an outer surface, an open ended bore, a wall thickness and opposed ends; b) a plurality of peripheral pipes, each having a second diameter smaller than the first diameter, each having an open ended bore; c) at least one flange that joins the central and peripheral pipes together to define a multi-pipe structure, each of said at least one flange having a central opening occupied by the central pipe and a plurality of circumferentially spaced apart peripheral openings that generally surround the central opening, at least some of said peripheral openings being occupied by one of said peripheral pipes, said multi-pipe structure having opposed end portions, one end portion being a pin end portion; d) a protective cover affixed to the central pipe, said cover being a unitary polymeric body that includes an inner cylindrical portion that occupies a part of said open ended bore and being next to the inner surface of the central pipe and an outer cylindrical portion that surrounds one of said opposed ends of said central pipe, a transverse annular shoulder that connects the inner and outer cylindrical portions of said polymeric body and a circular disk that is connected to the inner surface and that is spaced longitudinally from the annular shoulder and that occupies a position in the bore of the central pipe section; and e) said cover including a plurality of radially extending enclosures that each are connected to and extend from the outer cylindrical portion to the periphery of one of the flanges next to the pin end portion, each said enclosure comprising a longitudinally extending wall connected to the outer cylindrical portion and a transversely extending wall that is connected to the longitudinally extending wall and to the outer cylindrical portion, each enclosure having an edge that is positioned next to said at least one flange; a plurality of fasteners that connect the inner cylindrical portion to the inner surface of the central pipe. 25. The piping riser assembly of claim 24 wherein said plurality of fasteners are spaced circumferentially apart. 26. The piping riser assembly of claim 19 wherein the inner cylindrical portion has at least one internally threaded opening and one of said plurality of fasteners threadably attaches to the inner cylindrical portion at the internally threaded opening. 27. The piping riser assembly of claim 24 wherein the inner cylindrical portion has internally threaded openings and one of said plurality of fasteners threadably attaches to the inner cylindrical portion at the internally threaded openings. 28. A protective cover and pipe bundle that includes a centrally positioned pipe having a first diameter, an inner surface, an outer surface, an open ended bore, a wall thickness and opposed ends, a plurality of peripheral pipes, each having a second diameter smaller than said first diameter, an open ended bore with an internal diameter, and at least one fenenstrated generally circular disk flanges that join the centrally positioned and peripheral pipes together, comprising: a) a protective cover affixed to the centrally positioned pipe, said cover being a non-metallic body that includes an inner cylindrical portion that occupies a part of said open ended bore and being next to the inner surface and an outer cylindrical portion that surrounds one of said opposed ends of said centrally positioned pipe, a shoulder that connects the inner and outer cylindrical portions of said non-metallic body and a circular disk that is connected to the inner surface and that occupies a position in the bore of the centrally positioned pipe section, the disk having diameter about equal to the internal diameter of the centrally positioned pipe; b) said cover including a plurality of radially extending enclosures that extend from the outer cylindrical portion to the periphery of one of said at least one flange next to the pin end portion, each said enclosure comprising a longitudinally extending wall and a transversely extending wall that are connected to each other and to the outer cylindrical portion, each enclosure having an edge that is positioned next to said at least one a flange during use; and c) wherein each peripheral pipe has a free end that is enveloped by one of said radially extending enclosures.
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Todd Broome ; Benn Voll ; Perry Douglas Baycroft ; Elmer Richard Peterson ; Bobby Edward Hall, Downhole screen with tubular bypass.
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