Method and apparatus for frac/gravel packs
US6540022B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2002 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Feb 19, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for fracturing a formation or gravel packing a borehole using a screen assembly having a plurality of screens mounted on a base member and a plurality of apertures disposed at predetermined intervals along the screen assembly. A flow-control service assembly is disposed within the screen assembly and includes an outer tubular member and an inner tubular member. The outer tubular member includes a plurality of ports that communicate with the apertures in the screen assembly. Barriers are placed around the ports on the outer tubular member to prevent the formation of gravel bridges across the inner annulus between the inner tubular member and outer tubular member. The inner annulus provides alternative flow paths around the ports upon the ports becoming closed to fluid flow such as by bridges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.