Sand control screen having improved reliability
US9725989B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Dec 10, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sand control device is used for restricting the flow of particles from a subsurface formation into a tubular body within a wellbore during production operations. The sand control device is divided into compartments along its length that provide redundancy for particle filtration. Each compartment first comprises a base pipe. The base pipe defines an elongated tubular body having a permeable section and an impermeable section within each compartment. Each compartment also comprises a first filtering conduit and a second filtering conduit. The filtering conduits comprise filtering media and generally circumscribe the base pipe. The filtering conduits are arranged so that the first filtering conduit is adjacent to the non-permeable section of the base pipe, while the second filtering conduit is adjacent to the permeable section of the base pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.