Apparatus and method for determining fluid interface proximate an electrical submersible pump and operating the same in response thereto
US9194220B2 · kind B2 · utility
1Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Dec 27, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/135
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A production system placed inside a wellbore has a production tubing and an ESP for flowing fluid from the wellbore into the production tubing. A sensor string including distributed sensors is placed along the sensor string and provides temperature measurements along the production tubing uphole of the ESP. A controller determines from the temperature measurements a change in temperature that exceeds a threshold and determines therefrom level of a liquid in the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.