Apparatus and Methods for Leak Detection in Wellbores Using Nonradioactive Tracers

Abstract

In one aspect, a wellbore system is disclosed for determining breach of cement section in the wellbore, wherein the system includes a cement section in the wellbore formed to prevent flow of fluids including hydrocarbons through the cement section, nonradioactive tracers that emit radioactive emission when activated by a radiation source , a radioactive source that generates radioactive particles to activate the nonradioactive tracers that have migrated through the cement to cause the nonradioactive tracers to emit radiation, a detector for detecting the radioactive emission from the nonradioactive tracer, and a processor that determines from the detected radioactive emission a fluid leak through the cement section.

Dependencies are inferred from the claim text.