Drill Pipe With Increased Drill Pipe Body Wall Thickness And Outside Diameter

Abstract

A tubular member for a drill pipe comprising an elongated tubular body with a first end and a second end, the first and second ends including, respectively, a box tool joint section and a pin tool joint segment, the box tool joint segment being connected to the tubular body with at least a weld neck, wherein the nominal outer diameter of the tubular member is greater than the nominal pipe body outer diameter specified under American Petroleum Institute standard API Specification 5DP for a basis tubular member, and the nominal outer diameter of the tubular member is equal to or less than the weld neck diameter limitation specified under API Specification 5DP for a basis tubular member.

What is claimed is: 
     
         1 . A tubular member for a drill pipe comprising an elongated tubular body with first and second ends, the first and second ends including, respectively, a box tool joint section and a pin tool joint segment, the box tool joint segment being connected to the tubular body with at least a weld neck, wherein:
 the nominal outer diameter of the tubular member is greater than the nominal pipe body outer diameter specified under American Petroleum Institute standard API Specification 5DP for a basis tubular member; and,   the nominal outer diameter of the tubular member is equal to or less than the weld neck diameter limitation specified under API Specification 5DP for a basis tubular member.   
     
     
         2 . The tubular member of  claim 1 , wherein the basis tubular member is a drill pipe with 2⅜ inch drill pipe body outside diameter, and the nominal outside diameter of the tubular body of the tubular member is within the range 2.376 inches and 2.563 inches. 
     
     
         3 . The tubular member of  claim 1 , wherein the basis tubular member is a drill pipe with 2⅞ inch drill pipe body outside diameter, and the nominal outside diameter of the tubular body of the tubular member is within the range 2.876 inches and 3.188 inches. 
     
     
         4 . The tubular member of  claim 1 , wherein the basis tubular member is a drill pipe with 3½ inch drill pipe body outside diameter, and the nominal outside diameter of the tubular body of the tubular member is within the range 3.501 inches and 3.875 inches. 
     
     
         5 . The tubular member of  claim 1 , wherein the basis tubular member is a drill pipe with 4 inch drill pipe body outside diameter, and the nominal outside diameter of the tubular body of the tubular member is within the range 4.001 and 4.188 inches. 
     
     
         6 . The tubular member of  claim 1 , wherein the basis tubular member is a drill pipe with 4½ inch drill pipe body outside diameter, and the nominal drill pipe body outside diameter is within the range 4.501 inches and 4.688 inches. 
     
     
         7 . The tubular member of  claim 1 , wherein the basis tubular member is a drill pipe with 5 inch drill pipe body outside diameter, and the nominal outside diameter of the tubular body of the tubular member is within the range 5.001 inches and 5.125 inches. 
     
     
         8 . The tubular member of  claim 1 , wherein the basis tubular member is a drill pipe with 5½ inch drill pipe body outside diameter, and the nominal outside diameter of the tubular body of the tubular member is within the range 5.501 inches and 5.688 inches. 
     
     
         9 . The tubular member of  claim 1 , wherein the basis tubular member is a drill pipe with 6⅝ inch drill pipe body outside diameter, and the nominal outside diameter of the tubular body of the tubular member is within the range 6.626 inches and 6.938 inches.