Method and device for producing a borehole in the soil

Details Method and device for producing a borehole in the soil Method and device for producing a borehole in the soil

E - Fixed Constructions

21

B

E21B 7/20 (2006.01) E02D 5/34 (2006.01) E02D 5/38 (2006.01) E21B 7/00 (2006.01) E21B 10/44 (2006.01)

Patent

CA 2597819

The invention relates to a method for producing a borehole in the soil, in which a drill pipe and a conveyor screw arranged inside the drill pipe are set into rotation and introduced into the soil, and in which outcropping soil material is loosened by means of at least one main cutting edge, which is positioned axially in front of the conveyor screw, and is conveyed by means of the conveyor screw in the inside of the drill pipe. In accordance with the invention, provision is made for the main cutting edge to be arranged on the drill pipe and to be rotated therewith. The invention further relates to a device for producing a borehole in the soil which can be employed in the method according to the invention.

L'invention concerne une méthode de forage d'un puits, dans lequel un tuyau de forage et une vis transporteuse disposée à l'intérieur du tuyau de forage sont mis en rotation et introduits dans le sol et dans lequel les sols d'affleurement sont libérés par au moins un côté tranchant, situé dans l'axe devant la vis transporteuse et transportés par une vis transporteuse à l'intérieur du tuyau de forage. Il est également prévu dans l'invention que le principal côté tranchant soit disposé dans le tuyau de forage pour y être mis en rotation. L'invention concerne également un dispositif de forage pouvant être utilisé avec la méthode de l'invention.

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