Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
E21B7/00—Special methods or apparatus for drilling
E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
E21B7/027—Drills for drilling shallow holes, e.g. for taking soil samples or for drilling postholes
E21B7/028—Drills for drilling shallow holes, e.g. for taking soil samples or for drilling postholes the drilling apparatus being detachable from the vehicle, e.g. hand portable drills