Method and apparatus for obtaining production or injection profi

Details Method and apparatus for obtaining production or injection profi Method and apparatus for obtaining production or injection profi

1982-12-27

1984-09-25

Purser, Ernest R.

Wells

Processes

With indicating, testing, measuring or locating

166 64, E21B 4900

Patent

active

044731175

ABSTRACT:
The fluid flow profile in an underground reservoir having a well borehole is determined by placing in the well borehole an instrument capable of detecting the velocity of an interface moving in the well borehole. The well is shut-in to allow oil and water to separate and form an interface. A fluid miscible with the oil and less dense than the water is injected into the well borehole and forces the interface to move down the well borehole. The fluid flow profile is determined by analyzing the data obtained from the instrument.

REFERENCES:
patent: 2453456 (1948-11-01), Piety
patent: 3193004 (1965-07-01), Albright
patent: 3965983 (1976-06-01), Watson

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