Shale drill pipe

FIG. 1 is a front, top, and left side perspective view of a first embodiment of a shale drill pipe;

FIG. 2 is a rear, top, and right side perspective view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top elevational view thereof;

FIG. 6 is a bottom elevational view thereof;

FIG. 7 is a front plan view thereof;

FIG. 8 is a rear plan view thereof;

FIG. 9 is a cross-sectional view thereof taken along line 9 - 9 in FIG. 3 ;

FIG. 10 is an enlarged portion of a cross-sectional view thereof from a section identified as 10 in FIG. 9 ;

FIG. 11 is a front, top, and left side perspective view of a second embodiment of a shale drill pipe;

FIG. 12 is a rear, top, and right side perspective view thereof;

FIG. 13 is a right side elevational view thereof;

FIG. 14 is a left side elevational view thereof;

FIG. 15 is a top elevational view thereof;

FIG. 16 is a bottom elevational view thereof;

FIG. 17 is a front plan view thereof;

FIG. 18 is a rear plan view thereof; and,

FIG. 19 is a cross-sectional view thereof taken along line 19 - 19 in FIG. 13 .