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US 4,223,725 AGranted
Method for reservoir fluid drift rate determination
AssigneeTexaco Inc.
InventorsThomas S. Teasdale, Wilton T. Adams
Life of this patent
Estimating the term…
Abstract
The magnitude of fluid drift rate at a well in a reservoir is determined by first injecting a known volume of a fluid containing a tracer, then shutting in the well for a period of time to allow movement of the injected tracer fluid, then producing said well while systematically analyzing produced fluid samples to determine the produced tracer concentration and therefrom the magnitude of the fluid drift rate in the reservoir.
Claims9
In an underground reservoir penetrated by at least one well, a method for determining the magnitude of fluid drift rate in the reservoir consisting essentially of:
- a. injecting into a well which penetrates said reservoir a known volume of a fluid containing a tracer chemical,
- b. shutting in said well for a period of time to allow movement of the injected tracer containing fluid,
- c. producing said well while systematically analyzing produced fluid samples to determine the produced tracer concentration, and
- d. calculating therefrom the magnitude of the fluid drift rate in the reservoir.
1 more element
Dependencies are inferred from the claim text.