Apparatus for and a method of expanding tubulars
US7174764B2 · kind B2 · utility
11Cited by
74References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2002 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/105
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for and a method of expanding tubulars, and particularly tubulars or a string of tubulars that have one or more per orated portions and one or more non-perforated portions. In one embodiment, the apparatus (150) includes an inflatable element (e.g. a packer 152) that has a shaft (156) rotatably coupled thereto so that the shaft (156) can rotate relative to the inflatable element (152). An expansion cone (158) is threadedly engaged with a threaded portion (156t) of the shaft (156) so that it moves along the threaded portion (156t) upon rotation of the shaft (156) relative to the cone (158).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.