Submersible pump monitoring
US10415373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2015 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Mar 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H9/004
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In order to address the above noted problems, embodiments of the present invention use distributed acoustic sensing to monitor the fluid level in an ESP activated well so as to monitor the condition and performance of the ESP. Embodiments of the invention use the ESP as an acoustic source in order to monitor the annulus fluid level within the well and to monitor the frequency of the ESP. Additionally, embodiments of the present invention may use distributed acoustic sensing to monitor the flow rates of the production fluid above and below the ESP to determine the pump's efficiency. In particular, some embodiments utilize one or more optical fibers to measure the acoustic waves generated by the ESP, wherein the fiber cabling has already been deployed along the length of the well. As such, the present invention is a non-invasive, in-situ method for monitoring the condition and performance of an ESP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.