Multi-zone completion strings and methods for multi-zone completions
US6722440B2 · kind B2 · utility
36Cited by
22References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Dec 5, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A string for completing a well, the string having several parts including: a base pipe with a hole; a packer in mechanical communication with the base pipe; a screen in mechanical communication with the base pipe, wherein the screen is proximate the hole in the base pipe; an isolation pipe concentric within the base pipe and proximate to the hole in the base pipe, wherein an annulus is defined between the base pipe and the isolation pipe; and an annular flow valve in mechanical communication with the base pipe and the isolation pipe, wherein the annular flow valve controls longitudinal fluid flow through the annulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.