Monitoring fluid pressure in a well and retrievable pressure sensor assembly for use in the method
US8528395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 4, 2005 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 15, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for monitoring the pressure difference across an ESP comprises:—connecting the ESP (7) to a production tubing (6)—providing the production tubing (6) with a side pocket (9) which comprises an opening (13)—inserting a pressure sensor assembly (10) into the side packet (9) such that the opening (13) is located between a pair of annular seals (14, 15)—monitoring the pressure difference across the ESP (7) by inducing the sensor assembly to measure a pressure difference between an upper section of the side pocket which is in communication with the interior of the tubing and a middle section (16) of the interior of the side packet (9) which is located between the annular seals (14, 15).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.