Viscous oil inflow control device for equalizing screen flow
US7578343B2 · kind B2 · utility
52Cited by
23References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2007 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Nov 30, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flow balancing system for long screen sections particularly useful in high viscosity hydrocarbon production features an annular flow path whose height and length can be varied to provide a predetermined resistance to a given flow rate of a material of a given viscosity. In assembling a long length of screen sections, greater resistance configurations are placed closer to the wellhead end of the screen section with the more remote sections having progressively less restriction until the furthest section of the screen string where low or no resistance to flow internally to the screen section is offered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.