Method and apparatus for testing a subsurface formation for flui

Details Method and apparatus for testing a subsurface formation for flui Method and apparatus for testing a subsurface formation for flui

1975-08-15

1977-03-01

Gill, James J.

Measuring and testing

Borehole or drilling

Downhole test

73152, G01V 900

Patent

active

040096092

ABSTRACT:
A method and apparatus for testing a subsurface formation for the retention of a fluid where energy is passed through the formation, including inserting a test fluid into the formation in the path of the energy, the test fluid having properties of mobility corresponding to those of the fluid to be retained and properties affecting in a detectable manner the energy passed through the test fluid in the formation; and sensing the energy affected by passage through the test fluid in the formation to determine the retention potential of the formation.

REFERENCES:
patent: 2137985 (1938-11-01), Salvatori
patent: 2172625 (1939-09-01), Schlumberger
patent: 2739475 (1956-03-01), Nowak
patent: 3480079 (1969-11-01), Guinn et al.
patent: 3690164 (1972-09-01), Gabillard et al.
patent: 3795142 (1974-03-01), Smith et al.

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