Inventors:
Thomas C. Sale - Fort Collins CO, US
Geoffrey R. Taylor - Franktown CO, US
Mark Lyverse - Lafayette CA, US
Assignee:
Colorado State University Research Foundation - Fort Collins CO
Chevron U.S.A. Inc. - San Ramon CA
International Classification:
G01F 1/704
Abstract:
A method and apparatus for measuring in situ flow of non-aqueous phase liquids (NAPLs) through a porous medium is described. A tracer is introduced into a well or boring located in the medium and the tracer concentration in the well kept uniform by mixing. The rate at which the tracer is depleted from the well has been determined to be proportional to the flow rate of the NAPL through the well or boring and surrounding formation.