The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2006
Filed:
May. 23, 2003
Timothy Gareth John Jones, Cottenham, GB;
Boris Matveev, St. Petersburg, RU;
Vladimir Vaynshteyn, Southampton, GB;
Christian Besson, Moscow, RU;
Oliver C. Mullins, Ridgefield, CT (US);
LI Jiang, Cambridge, GB;
Timothy Gareth John Jones, Cottenham, GB;
Boris Matveev, St. Petersburg, RU;
Vladimir Vaynshteyn, Southampton, GB;
Christian Besson, Moscow, RU;
Oliver C. Mullins, Ridgefield, CT (US);
Li Jiang, Cambridge, GB;
Schlumberger Technology Corporation, Ridgefield, CT (US);
Abstract
A method of monitoring gas in a downhole environment is discussed which provides downhole a mid-infrared light emitting diode, operates the diode to transmit respective infrared signals on a first optical path extending from the diode through a downhole gas sample and a second optical path extending from the diode through a reference gas sample, detects the transmitted infrared signals, and determines the concentration of a component of the downhole gas sample from the detected signals.