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1. (WO2018162520) DRILLING BUCKET

Pub. No.:    WO/2018/162520    International Application No.:    PCT/EP2018/055535
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Thu Mar 08 00:59:59 CET 2018
IPC: E21B 27/00
Applicants: TBH TECHNISCHES BÜRO HAGEN GMBH
Inventors: KISTER, Ralf
Title: DRILLING BUCKET
Abstract:
The invention relates to a drilling bucket for fastening to the drill pipes of a drilling tool, comprising a base which has a closable filling opening and is provided with a cutting device, wherein the drilling bucket comprises a bin (3), which is movable inside a cylinder (1), at least one outflow opening (33) being introduced into the bin casing (30) and closed by the cylinder casing (1) in an inserted position of the bin (3), wherein closure means are arranged for releasable fixing of the bin (3) in the inserted position.