Internal adjustments to autonomous inflow control devices
US-2015376980-A1 · Dec 31, 2015 · US
Autonomous fluid control device having a movable valve plate for downhole fluid selection
US8991506B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8991506-B2 |
| Application number | US-201113640542-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 31, 2011 |
| Priority date | Oct 31, 2011 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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An apparatus and method are described for autonomously controlling flow of fluid in a subterranean well, where fluid flow is controlled based on a fluid characteristic, such as viscosity or density, which changes over time. Fluid flows into a vortex assembly where a centrifugal force is imparted to the fluid. A less viscous fluid will have a relatively greater velocity and centrifugal force than a more viscous fluid. The fluid exits the vortex chamber by both a vortex outlet and a peripheral outlet. An autonomous valve element moves between an open position, in which fluid flows freely through the peripheral outlet, and a closed position, in which fluid flow through the peripheral outlet is restricted. The valve element is moved by the centrifugal force of the fluid, such that a fluid having a higher centrifugal force moves the valve element to the closed position, thereby reducing the total fluid flow through the vortex assembly.
First claim
Opening claim text (preview).
It is claimed: 1. An apparatus for autonomously controlling flow of fluid in a subterranean well, wherein a fluid characteristic of the fluid flow changes over time, comprising: a vortex assembly having a top surface, a bottom surface and a peripheral wall, defining a vortex chamber; an inlet providing fluid communication into the vortex chamber; a vortex outlet positioned at the bottom surface of the vortex chamber; a peripheral outlet positioned along the peripheral wall o…
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Fixed Constructions · mapped topic
- E21B34/08Primary
Fixed Constructions · mapped topic
Mechanical Engineering · mapped topic
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
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Frequently asked questions
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- What does patent US8991506B2 cover?
- An apparatus and method are described for autonomously controlling flow of fluid in a subterranean well, where fluid flow is controlled based on a fluid characteristic, such as viscosity or density, which changes over time. Fluid flows into a vortex assembly where a centrifugal force is imparted to the fluid. A less viscous fluid will have a relatively greater velocity and centrifugal force tha…
- Who is the assignee on this patent?
- Lopez Jean-Marc, Zhao Liang, Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification E21B34/08. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).