Drilling tool was made up in pressurization at bottom of wire line coring aggravated tube hole

The utility model discloses a drilling tool was made up in pressurization at bottom of wire line coring aggravated tube hole, include outer tube assembly, inner tube assembly, aggravate nest of tubes bench drill utensil, the outer tube assembly includes the outer tube, connect in about the outer tube both ends last enlarger, time enlarger the upper end of going up the enlarger is connected with the outer tube short circuit, the lower extreme of enlarger is connected with the drill bit down, the inner tube assembly by the inner tube, connect in the jump ring seat of inner tube lower extreme, the inner tube single action rock core fishing device of connecting on the inner tube constitute be equipped with the jump ring in the jump ring seat, aggravate nest of tubes bench drill utensil including connect in many on the outer tube short circuit are aggravated to manage and a plurality of centralizer, and increasing the weight of the pipe and being with the centralizer and setting up in turn, increase the weight of the pipe and go up the centralizer and connect a transition and increase the weight of the pipe, conventional wire line coring drilling rod is connected on the transition increases the weight of the centralizer of tub upper end. The utility model discloses realize among the tool joint to aggravate the special wire line coring combination drilling tool of tub dead weight as hole bottom loading (pressurization) mode.