Expandable tubing for a well bore hole and method of expanding
US6354373B1 · kind B1 · utility
442Cited by
30References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1998 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Nov 25, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An expandable tubing (12) for a well bore hole (14) in which selected length portions (24, 26, 28) are weakened by a slot configuration (FIGS. 2, 3, 4) to obtain predetermined expansion characteristics. The slot configurations are tailored or selected for a predetermined bore hole length and may be expanded to different radial diameters to conform generally to the peripheral contour of the bore hole. Tubing portions (29) between the slotted length potions (24, 26, 28) are unweakened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.