Apparatus and methods for leak detection in wellbores using nonradioactive tracers
US9593572B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2014 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Oct 5, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/101
- WIPO fieldCivil engineering
- WIPO sectorOther fields
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.