Probe using ultraviolet and infrared radiation for multi-phase flow analysis
US-2015377776-A1 · Dec 31, 2015 · US
Antenna of an electromagnetic probe for investigating geological formations
US9217809B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9217809-B2 |
| Application number | US-52463108-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 21, 2008 |
| Priority date | Feb 6, 2007 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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Abstract
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An antenna 3 of an electromagnetic probe used in investigation of geological formations GF surrounding a borehole WBH comprises a conductive base 31 and an antenna element 32 . The conductive base 31 comprises an opened non-resonant cavity 33 . The antenna element 32 is embedded in the cavity 33 and goes right through the cavity. The antenna element 32 is isolated from the conductive base 31 . The antenna element 32 is coupled to at least one electronic module via a first 34 A and a second 34 B port, respectively. The electronic module operates the antenna so as to define either a substantially pure magnetic dipole, or a substantially pure electric dipole.
First claim
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The invention claimed is: 1. An antenna ( 3 ) of an electromagnetic probe used in investigation of geological formations (GF) surrounding a borehole (WBH) comprising a conductive base ( 31 ) and an antenna element ( 32 ), the conductive base ( 31 ) comprising an opened non-resonant cavity ( 33 ), the antenna element ( 32 ) being embedded in the cavity ( 33 ) and going right through the cavity, the antenna element ( 32 ) being isolated from the conductive base ( 31 ), the antenna el…
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- What does patent US9217809B2 cover?
- An antenna 3 of an electromagnetic probe used in investigation of geological formations GF surrounding a borehole WBH comprises a conductive base 31 and an antenna element 32 . The conductive base 31 comprises an opened non-resonant cavity 33 . The antenna element 32 is embedded in the cavity 33 and goes right through the cavity. The antenna element 32 is isolated from the conduct…
- Who is the assignee on this patent?
- Simon Matthieu, Schlumberger Technology Corp
- What technology area does this patent fall under?
- Primary CPC classification G01V3/30. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 22 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).