Method for determining liquid recovery during a closed-chamber d

Measuring and testing – Borehole or drilling – Downhole test

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367908, E21B 4704

Patent

active

050921673

ABSTRACT:
Method for determining the volume of fluid produced and other production characteristics from a subterranean formation during a drill stem test based on determining the location of well fluid within the drill stem tubing by measuring the travel time of an acoustic signal reflected from the well fluid.

REFERENCES:
patent: 4123937 (1978-11-01), Alexander
patent: 4391135 (1983-07-01), Godbey et al.
patent: 4934186 (1990-06-01), McCoy

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