Tubular liner for wellbore casing
US7021390B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2003 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Jul 14, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0447
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for expanding tubulars including providing an expandable tubing and a larger diameter tubing, wherein the larger diameter tubing has an expandable, tapering end portion; coupling an end portion of the expandable tubing to the expandable tapering end portion of the larger diameter tubing; running the connected tubing into a bore; and expanding the expandable tubing. Prior to the expanding of the expandable tubing, a wall thickness of the end portion of the expandable tubing coupled to the expandable tapering end portion of the larger diameter tubing is less than a wall thickness of another end portion of the expandable tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.