The ornamental design for a downholehydraulicfracturingplug, as shown and described.
FIG. 1 is a perspective view of a downhole hydraulic fracturing plug, showing my new design.
FIG. 2 is a front elevational view thereof.
FIG. 3 is a rear elevational view thereof.
FIG. 4 is a side elevational view thereof.
FIG. 5 is an elevational view of a side opposite that shown in FIG. 4.
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines show portions of a downhole hydraulic fracturing plug which form no part of the claimed design. The parallel “zig-zag” lines seen in FIGS. 1-5 are for the purpose of showing a symbolic break in length of the claimed design. Any portion of the article which appears within the “zig-zag” lines forms no part thereof.