![]() The drill pipe screen of claim 16 wherein said integrity band has a length of about ¾ inch.ġ8. ![]() The drill pipe screen of claim 1 wherein the area of the cylindrical body between adjacent sets of slots defines a cylindrical integrity band having a length of between about ¾ inch and about 2 and ¼ inches, said integrity band having a set of relief ports located at about the middle of such integrity band.ġ7. The drill pipe screen of claim 1 further comprising a lower end cap and an upper end cap attached to said body, said lower end cap having a plurality of openings therein.ġ6. The drill pipe screen of claim 13 wherein said body has an inside diameter of about 2 and ⅜ inches, an outside diameter of about 2 and ⅞ inches, and a wall thickness of about ¼ inch.ġ5. The drill pipe screen of claim 1 wherein said body has a length of between about 16 inches and about 48 inches, an inside diameter of between about ⅞ inches and about 2 and ⅞ inches, and an outside diameter of between about 1 and ⅜ inches and about 3 and ⅛ inches.ġ4. The drill pipe screen of claim 1 wherein said elongated slots have a length of at least about 6 and ¾ inches.ġ3. The drill pipe screen of claim 1 wherein said elongated slots have a width of at least about ¼ inch, and a length of between about 4 inches and about 8 inches and said relief ports have a diameter of at least about ¼ inch.ġ2. The drill pipe screen of claim 9 wherein three sets of relief ports and three sets of slots are alternatingly provided along said body.ġ1. The drill pipe screen of claim 8 wherein a first set of relief ports is provided near a lowermost end of said cylindrical body.ġ0. The drill pipe screen of claim 1 wherein each set of relief ports is alternatingly provided with and adjacent to a set of slots along said body.ĩ. The drill pipe screen of claim 1 wherein the number of slots in each set is 16 and the number of relief ports in each set is 16.Ĩ. The drill pipe screen of claim 1 wherein the number of slots in each set is between 10 and 20, and the number of relief ports in each set is between 10 and 20.ħ. The drill pipe screen of claim 1 wherein the number of slots in each set is the same as the number of relief ports in each set.Ħ. The drill pipe screen of claim 1 wherein said slots and said relief ports have openings that are the same size on the inside and the outside of said cylindrical wall.ĥ. The drill pipe screen of claim 1 wherein said relief ports are axially aligned with said elongated slots.Ĥ. The drill pipe screen of claim 1 wherein said elongated slots are evenly spaced apart from each other, and said relief ports are evenly spaced apart from each other.ģ. A drill pipe screen comprising an elongated hollow cylindrical body having an inside, an outside, and a central axis, said body further comprising a cylindrical wall having at least one set of a plurality of elongated slots provided through said wall and along said body, said wall also having at least one set of relief ports provided through said wall on said body adjacent to said slots, wherein said elongated slots are provided in parallel to each other and in parallel to said central axis and are radially aligned and spaced apart from each other around the perimeter of said body, and said relief ports are radially aligned and spaced apart from each other around the perimeter of said body.Ģ. Subsea Connection Apparatus for a Surface Blowout Preventer Stackġ. Segmented steel tube bundle termination assembly High Pressure, High Temperature Gravel Pack Carrier Fluid with Extended Dynamic Stability for Alternate Flow PathĮnhanced Oil Recovery In Oxygen Based In Situ Combustion Using Foaming AgentsĭEGRADABLE MATERIAL FOR DOWNHOLE APPLICATIONS PRODUCTION TUBING FOR OIL WELLS MADE OF A COMPOSITE MATERIAL OF CONTINUOUS CARBON FIBRE Osmotic Water Transfer System and Related Processes Anti-oxidizing process for non-cryogenic nitrogen
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