Autonomous inflow control device and methods for using same
US8752629B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 2011 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Dec 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7796
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A valve assembly for regulating fluid flow in a horizontal wellbore. A housing can be coupled to a production tubular. A chamber is defined within the housing and can be in fluid communication through a flow channel with an inner annulus formed adjacent the wellbore. A piston and a biasing member can be disposed within the chamber, where the biasing member biases the piston into a first position. A flowpath is defined within the housing and communicable with both the production tubular and the inner annulus. The flowpath can include one or more nozzles disposed therein, and the piston can be configured to move between the first position allowing fluid flow through the flowpath to the production tubular and a second position preventing fluid flow to the production tubular.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.