Interventionless bi-directional barrier
US6904975B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Dec 30, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An interventionless bi-directional barrier device of a downhole tool for use in a wellbore and a method of utilizing the barrier device to control the flow of production fluids in the wellbore are described herein. The barrier device includes a flapper mechanism having first and second flappers articulably linked together and articulably linked to a base member that is slidable within the downhole tool. The flapper mechanism provides a seal between opposing uphole-and downhole ends of the downhole tool upon actuation thereof. The method of controlling the flow of production fluids in the wellbore includes closing the barrier device to block flow through the tool, supporting the barrier device from a pressure exerted from a first direction, and supporting the barrier device from a pressure exerted from a second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.