In-hole rope coring accident drill rod hole bottom power cutting device

The invention discloses an in-hole rope coring accident drill rod hole bottom power cutting device, which comprises a hole bottom power cutting device body and an auxiliary device, and is characterized in that the hole bottom power cutting device body comprises a base, a bearing sleeve, a hydraulic cutter, a screw motor, a bypass valve, a bearing seat, a single-action water sealing assembly, a heavy hammer and a fishing spearhead; the auxiliary device comprises a lifting fishing winch, a steel wire rope, a drilling machine and a slurry pump. The method is simple to operate, quick, simple, convenient, safe and reliable, the drill rod cutting condition in the wire-line coring accident can be quickly and effectively solved, the influence is limited within a controllable range, the manpower, material and time cost is reduced, the success probability of complex accident treatment is increased, the drilling construction efficiency is improved, and the construction period is shortened. And the probability that the d