Method and apparatus to monitor, control and log subsea oil and gas wells
US6640900B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Jul 10, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/135
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for logging, controlling, or monitoring a subsea well or group of wells through a path not within production tubing. Preferred embodiments of the present invention allow logging tools, wire rope, optic fibers, electrical cables, monitoring and measuring instruments and other items known to those skilled in the art of oil and gas production to be disposed into the well without interfering with the flow path through the production string. In another aspect of the invention, a preferred embodiment includes the mooring or tethering of an instrument pod over the subsea well. The instrument pod is designed provide on-board data storage, data processing, data receiving, and data transmission equipment, such that data from the well can be transmitted back to a receiving network where said data may be stored and processed into useful information for reservoir operators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.