Survey process for cable core borings and device for implementin

Details Survey process for cable core borings and device for implementin Survey process for cable core borings and device for implementin

1995-02-10

1996-09-10

Buiz, Michael Powell

Boring or penetrating the earth

With signaling, indicating, testing or measuring

E21B 4700

Patent

active

055536778

ABSTRACT:
A survey process for cable core borings in which an inner core tube (3) with an autarcally operating measuring probe (24) releasably secured via a core retaining sleeve adapter (20) is fed into a core boring rod (6) and blocked in an outer core tube (4) with a boring ring (2) via a core tube coupling (10, 11, 12, 13), measurements are taken in the open borehole by the measuring probe (24), the sensors of which look forwards through the boring ring on the withdrawal of the core boring rods (6), and temporarily stored time-dependently in the measuring probe (24), the measured depth is found by means of a rod travel indicator (1) and stored in a manner correlatable in time and, after the withdrawal of the inner core tube (3) with its measuring probe (24) secured to it, the measurements are read out from the measuring probe via a portable PC.

REFERENCES:
patent: 4800385 (1989-01-01), Yamazaki
patent: 4901804 (1990-02-01), Thometz et al.
patent: 5096001 (1992-03-01), Buytaert et al.

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