Steam injection survey apparatus and method for testing wells

Details Steam injection survey apparatus and method for testing wells Steam injection survey apparatus and method for testing wells

1989-02-10

1990-05-29

Chapman, John

Measuring and testing

Borehole or drilling

Downhole test

166252, E21B 4900

Patent

active

049285220

ABSTRACT:
A radio-active tracer, carried by a pressurized gas, is injected through an axially displaceable tube into a flow stream of steam within a well tubing string to perform a steam injection survey of underground formations intersected by a well bore into which the tubing string extends. The injection tube is guided for displacement from a retracted position at an acute angle to the flow stream direction to an injection position within the tubing string through a riser port, swab valve and steam inlet connection located below a storage zone within a lubricator pipe from which a logging tool is inserted into the tubing string.

REFERENCES:
patent: 4169504 (1979-10-01), Scott
patent: 4817713 (1989-04-01), Nguyen et al.
patent: 4832128 (1989-05-01), Light et al.

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