Use of biphenyl, terphenyl, and fluorene sulphonic acid based tracers for monitoring streams of fluids
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United States of America Patent
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Nov 25, 2014
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Jun 19, 2007
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Jun 20, 2006
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Abstract
Biphenylmono- and polysulphonic acids and salts thereof, fluorenemono- and polysulphonic acids and salts thereof as well as p-terphenylmono- and polysulphonic acids and salts thereof may be used successfully as tracers for surveying, monitoring and/or measuring movements of aqueous fluids in aqueous and/or non-aqueous media. Said substances are especially suited for surveying or monitoring movements of fluids in oil wells or reservoirs as well as for fluid movements in hydrothermal reservoirs.
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