Flow resistivity instrument in the earth

Details Flow resistivity instrument in the earth Flow resistivity instrument in the earth

1983-06-27

1984-10-23

Birmiel, Howard A.

Measuring and testing

With fluid pressure

Porosity or permeability

73155, G01N 1508

Patent

active

044780699

ABSTRACT:
Method and apparatus for making in-situ measurements of flow resistivity on the Earth's ground surface. The novel feature of the invention is two concentric cylinders, 22 and 23, inserted into the ground surface 24 with a measured pressure 21 applied to the surface inside the inner cylinder 22. The outer cylinder 23 vents a plane B-B beneath the surface to the atmosphere through an air space 28. The flow to the inner cylinder is measured (16) thereby indicating the flow from the surface to the plane beneath the surface.

REFERENCES:
patent: 3172285 (1965-03-01), Dietert et al.
patent: 3861196 (1975-01-01), Domenighetti
patent: 3889521 (1975-06-01), Jakimowicz
patent: 3924463 (1975-12-01), Urbanosky
patent: 3996788 (1976-12-01), Purves

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