Patent ID: 8141633
Filing Date: 2012-03-27
Classification: E21B,G01V

Abstract:
1. A method for identifying fluids in a wellbore comprising: generating light in a visible spectrum from a light source in a production wellbore; generating light in an ultraviolet spectrum from the light source in the production wellbore; receiving a first fluid in the production wellbore from a subterranean zone; receiving a second fluid in the production wellbore from the subterranean zone; capturing at least one image of a combined flow of the first fluid and the second fluid in at least one of the visible spectrum and the ultraviolet spectrum with an optical receiver in the production wellbore; and distinguishing, at least in part through the image, the first fluid from the second fluid in either or both the visible and ultraviolet spectrums by quantifying, based on the at least one image, an amount of the first fluid or the second fluid in the combined flow of the first and second fluids in the production wellbore.