Microwave heating technique for treatment of condensate buildup
US-2024052736-A1 · Feb 15, 2024 · US
Insulated conductor heaters with semiconductor layers
US8939207B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939207-B2 |
| Application number | US-201113083200-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 8, 2011 |
| Priority date | Apr 9, 2010 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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A heater used to heat a subsurface formation includes an electrical conductor, a semiconductor layer at least partially surrounding the electrical conductor, an insulation layer at least partially surrounding the electrical conductor, an electrically conductive sheath at least partially surrounding the insulation layer. The heater may be located in an opening in the subsurface formation.
First claim
Opening claim text (preview).
What is claimed is: 1. A heater configured to heat a subsurface formation, comprising: an electrical conductor; a semiconductor layer at least partially surrounding the electrical conductor; an insulation layer at least partially surrounding the electrical conductor, wherein the semiconductor layer has a higher dielectric constant than the insulation layer; and an electrically conductive sheath at least partially surrounding the insulation layer; wherein the heater is conf…
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- E21B43/2401Primary
Fixed Constructions · mapped topic
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Frequently asked questions
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- What does patent US8939207B2 cover?
- A heater used to heat a subsurface formation includes an electrical conductor, a semiconductor layer at least partially surrounding the electrical conductor, an insulation layer at least partially surrounding the electrical conductor, an electrically conductive sheath at least partially surrounding the insulation layer. The heater may be located in an opening in the subsurface formation.
- Who is the assignee on this patent?
- De St Remey Edward Everett, Giuliani Valerio, Harris Christopher Kelvin, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification E21B43/2401. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Jan 27 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).