ABSTRACT

Many different logging instruments are available for determining injectivity profiles. Spinner surveys measure fluid flow rate in casing. Tracer surveys have the ability to "follow" the injection fluid behind pipe. Temperature surveys indicate, through temperature anomalies, what happens in the formation. These logging methods are often combined in a multiple run survey to gather all the information available. The use of the Neutron Lifetime Log and a high sigma fluid is suggested as an alternative to the above methods. This application of the NLL and the interpretation of three field examples are discussed.

This content is only available via PDF.
You can access this article if you purchase or spend a download.