Method of saving string of tools installed in an oil well and a corresponding transmission assembly
US6615916B1 · kind B1 · utility
20Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2002 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Jan 29, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In order to ensure that at least some of the tools (12-1) to 12-4) in a string of tools that is permanently installed in an oil well (10) are kept in operation even in the event of a localized fault, the link (18) interconnecting the tools and a surface installation (16) is subdivided into segments by switch members (20). More precisely, a switch member is associated with each tool. In addition, the link (18) forms a loop with both ends thereof being connected to the surface installation (16).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.