Dissimilar metal joint including flame-retardant magnesium alloy layer
US-2020384578-A1 · Dec 10, 2020 · US
US2016228976A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016228976-A1 |
| Application number | US-201315025161-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 31, 2013 |
| Priority date | Oct 31, 2013 |
| Publication date | Aug 11, 2016 |
| Grant date | — |
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A method of making a downhole servicing tool comprising explosively welding a corrosion resistant material to a corrodible surface of the downhole servicing tool to yield a coated surface, wherein the coated surface comprises an explosively-welded corrosion resistant material.
Opening claim text (preview).
What is claimed is: 1 . A method of making a downhole servicing tool comprising explosively welding a corrosion resistant material to a corrodible surface of the downhole servicing tool to yield a coated surface, wherein the coated surface comprises an explosively-welded corrosion resistant material. 2 . The method of claim 1 wherein the corrodible surface comprises low alloy steel, carbon steel, mild steel, low-carbon steel, low-alloy carbon steel, plain-carbon steel, medium carbon steel, high-carbon steel, ultra-high-carbon steel, or combinations thereof. 3 . The method of claim 1 wherein the corrosion resistant material comprises a corrosion resistant alloy, high alloy steel, stainless steel, nickel alloy, Inconel, a corrosion resistant metal, titanium, zirconium, or combinations thereof. 4 . The method of claim 1 wherein the explosively-welded corrosion resistant material is characterized by a thickness of from about 0.1 mm to about 10 mm. 5 . The method of claim 1 wherein the corrosion resistant material and the corrodible surface comprise dissimilar materials. 6 . The method of claim 1 wherein the corrodible surface has a tubular and/or cylindrical geometry. 7 . The method of claim 1 wherein the corrodible surface comprises a corrodible surface in a port, a corrodible surface in a slot, a corrodible surface on a tubular, a corrodible surface on a mandrel, a corrodible surface in a housing, or combinations thereof. 8 . The method of claim 1 wherein two or more components of the downhole servicing tool are in sealing contact with each other, thereby forming a sealing interface. 9 . The method of claim 8 wherein the sealing interface comprises at least a portion of a first surface of a first component in sealing contact with at least a portion of a second surface of a second component, wherein all or a portion of the first surface and/or all or a portion of the second surface may comprise the coated surface. 10 . The method of claim 1 wherein explosively welding the corrosion resistant material to the corrodible surface of the downhole servicing tool involves detonating an explosive placed proximate the corrosion resistant material. 11 . The method of claim 10 wherein the explosive comprises cyclotrimethylene trinitramine (RDX) characterized by molecular formula C 3 H 6 N 6 O 6 ; pentaerythritol tetranitrate (PETN) characterized by molecular formula C 5 H 8 N 4 O 12 ; trinitrotoluene (TNT) characterized by molecular formula C 7 H 5 N 3 O 6 ; trinitrophenylmethylinitramine characterized by molecular formula C 7 H 5 N 5 O 8 , also known as tetryl; nitroguanidine characterized by molecular formula CH 4 N 4 O 2 ; lead azide characterized by molecular formula Pb(N 3 ) 2 ; ammonium nitrate characterized by molecular formula NH 4 NO 3 ; ammonium nitrate sensitized with fuel oil; ammonium perchlorate characterized by molecular formula NH 4 ClO 4 ; amatol; sodatol; Composition B; Composition C4; dynamite; detasheet; or combinations thereof. 12 . The method of claim 1 wherein the downhole servicing tool comprises a carrier, a gauge carrier, a gauge, a recorder, a port, a slot, a carrier gun, a piston assembly, a valve, a bypass valve, a valve assembly, a shut-in valve, a circulation valve, a reverse circulation valve, a safety valve, a drain valve, a drill stem testing tool, a nozzle, a packer, a safety joint, a sample container, a perforating gun, a perforated pipe, a shoe, a sampling tool, a logging tool, a fracturing tool, a drilling tool, a completion tool, a perforating tool, a repair tool, a work over tool, or any components thereof. 13 . The method of claim 12 wherein the drill stem testing tool comprises a valve assembly, a gauge carrier, a packer, a perforated pipe, and a shoe. 14 . The method of claim 13 wherein the drill stem testing tool further comprises a bypass valve, a safety joint, a sample container, a perforating gun, or combinations thereof. 15 . The method of claim 13 wherein the gauge carrier comprises a gauge carrier slot, wherein the gauge carrier slot comprises a coated surface. 16 . The method of claim 15 wherein the gauge carrier comprises a blank adaptor further comprising a gauge, wherein the blank adaptor is in a parameter monitoring configuration, wherein the blank adaptor is in sealing contact with the gauge carrier slot, thereby forming a sealing interface, and wherein the gauge senses a condition proximate the downhole servicing tool. 17 . The method of claim 9 wherein the first component comprises a gauge carrier slot and the second component comprises a blank adaptor. 18 . The method of claim 12 wherein the piston assembly comprises a housing, a mandrel and an annular piston, wherein the housing comprises a first coated surface, wherein the mandrel comprises a second coated surface, wherein the first coated surface and the second coated surface define an annular space, and wherein the annular piston moves within the annular space. 19 . The method of claim 9 wherein the first component comprises a mandrel and/or a housing and the second component comprises an annular piston. 20 . The method of claim 18 wherein the piston assembly is a differential pressure piston assembly, and wherein at least a portion of the annular space comprises a fluid. 21 . The method of claim 12 wherein the port is selectively openable and/or closeable to fluid flow. 22 . The method of claim 21 wherein the port is configured for a perforating and/or fracturing operation. 23 . The method of claim 12 wherein the packer comprises a hydraulic holddown mechanism further comprising a hydraulic holddown piston and a piston slot, wherein the hydraulic holddown piston moves within the piston slot. 24 . The method of claim 9 wherein the first component comprises a hydraulic holddown piston and the second component comprises a piston slot. 25 . A downhole servicing tool comprising a coated surface, wherein the coated surface comprises an explosively-welded corrosion resistant material. 26 . The downhole servicing tool of claim 25 wherein the explosively-welded corrosion resistant material comprises a corrosion resistant alloy, high alloy steel, stainless steel, nickel alloy, Inconel, a corrosion resistant metal, titanium, zirconium, or combinations thereof. 27 . The downhole servicing tool of claim 25 comprising a carrier, a gauge carrier, a gauge, a recorder, a port, a slot, a carrier gun, a piston assembly, a valve, a bypass valve, a valve assembly, a shut-in valve, a circulation valve, a reverse circulation valve, a safety valve, a drain valve, a drill stem testing tool, a nozzle, a packer, a safety joint, a sample container, a perforating gun, a perforated pipe, a shoe, a sampling tool, a logging tool, a fracturing tool, a drilling tool, a completion tool, a perforating tool, a repair tool, a work over tool, or any components thereof. 28 . The downhole servicing tool of claim 27 wherein the drill stem testing tool comprises a valve assembly, a gauge carrier, a packer, a perforated pipe, and a shoe. 29 . The downhole servicing tool of claim 27 wherein the gauge carrier comprises a gauge carrier slot and a blank adaptor further comprising a gauge, wherein the blank adaptor is in a parameter monitoring configuration, wherein the gauge carrier slot comprises a coated surface in sealin
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