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Downhole spectral analysis tool

  • US 7,511,813 B2
  • Filed: 01/26/2006
  • Issued: 03/31/2009
  • Est. Priority Date: 01/26/2006
  • Status: Active Grant
First Claim
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1. A downhole tool having a spectral analysis module comprising:

  • a replica grating comprising a substantially inorganic substrate having grooves therein with a grating groove density for measuring wavelengths from about 200 nm to about 4000 nm.

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