Retrievable well monitor/controller system
US6464004B1 · kind B1 · utility
77Cited by
3References
22Claims
0Family size
Inventors
Key dates
| Filing date | Aug 7, 1998 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Aug 7, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/03
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well control and monitoring system which may be completely installed downhole and run into a cased well borehole or a production tubing string is disclosed. At least one mandrel having a side pocket instrument section having a downwardly facing entry and a wet connector or inductive coupler is placed in the well. A downhole digital processor and sensors are used to monitor tubing and casing fluid pressures and to control variable orifice valves or ESP pumps to control fluid flow to the production tubing from the casing/tubing annulus. The processor is progammable and reprogrammable in-situ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.