Borehole geological assessment

Details Borehole geological assessment Borehole geological assessment

1978-05-04

1979-09-11

Myracle, Jerry W.

Measuring and testing

Borehole or drilling

Downhole test

175 78, E21B 4710

Patent

active

041671112

ABSTRACT:
A method and apparatus are provided for performing geological assessments of a formation located along a borehole, which includes a boring tool that bores a pair of holes into the walls of the borehole and into the surrounding strata, and a pair of probes installed in the holes. One of the probes applies an input such as a current or pressured fluid, and the other probe senses a corresponding input which it receives from the strata. The boring tool can include a series of rigid bore segments that can be easily installed in a housing that lies in the borehole, and apparatus for connecting the bore segments in series while also advancing them into the strata surrounding the borehole, so that a straight hole can be bored in the strata.

REFERENCES:
patent: 2747401 (1956-05-01), Doll
patent: 3289474 (1966-12-01), Smith
patent: 3301337 (1967-01-01), Vaughn et al.

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