Electricity: measuring and testing – Particle precession resonance – Using well logging device
Reexamination Certificate
2005-02-15
2005-02-15
Arana, Louis (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Using well logging device
C324S306000
Reexamination Certificate
active
06856132
ABSTRACT:
The present invention relates to a method and apparatus for measuring a property relating to fluid flow in an earth formation, more specifically to directly measuring formation permeability and other fluid characteristics. The present invention provides a method for determining the permeability of a hydrocarbon bearing earth formation, which method comprises the steps of: locating a tool at a selected position in a borehole penetrating the earth formation; inducing a flow of fluid within the earth formation to said tool; creating at least two MRI images of said fluid while flowing within the earth formation to said tool, said at least two images being created at different times; determining displacement of said fluid within the earth formation between said different times, using the at least two MRI images.
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Appel Matthias
Blumich Bernhard Peter Jakob
Freeman John Justin
Winkler Mario
Arana Louis
Shell Oil Company
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