DRILLING METHOD AND DEVICE - SUTANPU BOOLE GMBH

Title:

DRILLING METHOD AND DEVICE

Document Type and Number:

Japanese Patent JPH06158977

Kind Code:

A

Abstract:

PURPOSE: To more easily and inexpensively assemble a drilling device by further simplifying the handling of a junction part.

CONSTITUTION: A hole is drilled by a drilling rod consisting of a junction part 13 being driven by a rotary and/or percussive drive 7 of a drilling device 1. The wall of the borehole is supported by a casing pipe consisting of the junction part 17 being driven by a driving device 8. The junction parts 13 and 17 are mechanically taken out of a magazine and are returned into a hole after the hole is drilled. The junction part 13 and the junction part 17 are received from magazines 12 and 16 by the driving devices 6 and 8, respectively. Also, each junction part for a drilling rod and each junction part for the casing pipe are returned to the magazine.

Inventors:

GEORUGU TSUUDORA
RARUFU PORUTSUIIKU
NIKORAUSU HIYUTSUTE

Application Number:

JP21493992A

Publication Date:

June 07, 1994

Filing Date:

August 12, 1992

Export Citation:

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Assignee:

SUTANPU BOOLE GMBH

International Classes:

E21B6/00; E21B7/20; E21B19/14; E21B19/20; (IPC1-7): E21B19/14

Domestic Patent References:

JPS61164391U	1986-10-11
JPS62194390A	1987-08-26

Foreign References:

US3493061A

1970-02-03

Attorney, Agent or Firm:

Shogo Ebara (2 outside)

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