Geological assessment probe

Details Geological assessment probe Geological assessment probe

1978-09-25

1980-04-08

Myracle, Jerry W.

Measuring and testing

Borehole or drilling

Downhole test

E21B 4710

Patent

active

041966198

ABSTRACT:
A probe is described which can be installed in a side hole that extends from a bore hole in the earth, to assess the permeability of the strata surrounding the borehole. The probe is elongated and has a plurality of seals spaced therealong and sealed to the walls of the side hole to form a plurality of chambers sealed from one another. A tracer fluid injector on the probe can inject a tracer fluid into one of the chambers, while a tracer fluid detector located in another chamber can detect the tracer fluid, to thereby sense the permeability of the strata surrounding the side hole. The probe can include a train of modules, with each module having an inflatable packer which is inflated by the difference between the borehole pressure and the strata pressure.

REFERENCES:
patent: 2564198 (1951-08-01), Elkins
patent: 3289474 (1966-12-01), Smith
patent: 3871218 (1975-03-01), Louis
patent: 4043192 (1977-08-01), Shuck

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