Non-intrusive pressure measurement device for subsea well casing annuli
US6513596B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Mar 4, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well data monitoring system which enables annulus pressure and other well parameters to be monitored in the outer annuli of the well casing program without adding any pressure containing penetrations to the well system. This non-intrusive approach to monitoring pressure and other well parameters in the annuli preserves the pressure integrity of the well and maximizes the safety of the well. In the preferred embodiment an intelligent sensor interrogation system which can be located externally or internally of the pressure containing housing of the wellhead is capable of interrogating and receiving data signals from intelligent well data sensors which are exposed to well parameters within the various annuli of the well and wellhead program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.