Bottom-hole information collecting equipment

Details Bottom-hole information collecting equipment Bottom-hole information collecting equipment

1992-10-23

1994-03-22

Bui, Thuy M.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

E21B 4900

Patent

active

052955486

ABSTRACT:
A bottom-hole information collecting equipment to collect data at the bottom part of the shaft in real time by the sonde throughout an excavation by the bit for digging. The sonde is provided to be mechanically and electronically connected to or separated from the connecting pipe to which the bite is attached arbitrarily. Data collected by several sensors near the bit is transmitted to the sonde via the electromagnetic coupler. The electricity for the sensors and the sonde can be obtained by respective generators of which one is in the sonde and the other is in the connecting pipe.

REFERENCES:
patent: 4790380 (1988-12-01), Ireland et al.
patent: 4802143 (1989-01-01), Smith
patent: 4901069 (1990-02-01), Veneruso
patent: 4936139 (1990-06-01), Zimmerman et al.
patent: 4955438 (1990-09-01), Juergens et al.

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