Magnetic Ranging While Rotating
US-2015378043-A1 · Dec 31, 2015 · US
US9329299B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9329299-B2 |
| Application number | US-201213985207-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 15, 2012 |
| Priority date | Feb 16, 2011 |
| Publication date | May 3, 2016 |
| Grant date | May 3, 2016 |
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A detection system of geological formations, particularly but not exclusively used for oil exploration, and for characterization and monitoring of hydrocarbon reservoirs. The detection system includes an electromagnetic transmission device positioned on a surface of a geological formation close to a first well having a vertical development direction, the first well being covered by a metal casing, and an electromagnetic reception device positioned deep inside the first well, the electromagnetic reception device including an electromagnetic detector. The electromagnetic transmission device includes a primary electromagnetic field generator configured to generate a primary electromagnetic field focalized in a direction of the metal casing, the metal casing irradiating the primary electromagnetic field into the geological formation.
Opening claim text (preview).
The invention claimed is: 1. A detection system of geological formations comprising: an electromagnetic transmission device positioned on an above-ground surface of a geological formation adjacent a first well having a vertical development direction, a metal casing covering a portion of the first well; and an electromagnetic receiving device positioned at a depth inside the first well, below a surface plane of the above-ground surface of the geological formation, the electromagn…
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