Apparatus for making earth bores

Details Apparatus for making earth bores Apparatus for making earth bores

1992-12-01

1994-08-23

Britts, Ramon S.

Boring or penetrating the earth

Boring without earth removal

Drive point detached from shaft to form cased bore or with...

175295, E21B 1102

Patent

active

053399099

ABSTRACT:
An apparatus for making earth bores with simultaneous emplacement of pipe, especially for making well bores, includes an earth boring device (10) with a drive device (12) and a displacement head (14) coaxial with the drive device (12). The outer diameter of the displacement head is larger than that of the drive device (12) and of the surrounding pipe (16) with the pipe being connected to the drive device with a releasable force fit connection, wherein at least three pressure fluid jet nozzles (18) are arranged on the displacement head (14) pointing nearly in the boring direction and arranged at least nearly symmetrical to the longitudinal axis of the displacement head (14).

REFERENCES:
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Tunnel, Feb. 1991, pp. 90 and 91.
Erdol und Kohle-Erdgas-Petrochemie vereingt mit Brennstoff-Chemie, Bd. 44, Jun. 1991, p. 232.
Neue Bergbautechnik, 20 Jg., Heft 4, Apr. 1991 p. 137.
Brunnenbau, Bau von Wasserwerken und Rohrleitungsbau, Mar. 1991, pp. 1101.varies.114.

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