Unconsolidated zonal isolation and control
US6318465A · kind A · utility
96Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Oct 4, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/32
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for enhancing oil production and reducing contamination thereof by such things as water breakthrough in unconsolidated horizontal wells comprises gravel packing, zonal isolation and selective flow control in combination. The significant control provided by the system enables the well operator to create a uniform pressure drop form heel to toe of the horizontal well and avoid commonly experienced water coning and early breakthrough at the heel of the horizontal borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.