Well packer for a pipe string and a method of leading a line past the well packer
US7264061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2003 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Jan 5, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/122
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention concerns an external well packer (4, 4′, 4″) for a pipe string (2), and also a method of leading at least one line (18) seamlessly past at least one packer (4, 4′, 4″) along the pipe string (2). What is characteristic of the packer (4, 4′, 4″) is that it consists of a continuous inner packer ring (8) and a separate and continuous outer packer ring (10), which in the operating position encloses the inner packer ring (8) in a pressure tight manner. The fitting surface of at least one of the packer rings (8, 10) is provided with at least one through-going line slot (16, 16′), which in the operating position encloses a line (18) in a pressure tight manner. This allows continuous lines (18) to be stretched out past several such packers (4, 4′, 4″).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.