Use of biphenyl, terphenyl, and fluorene sulphonic acid based tracers for monitoring streams of fluids
AssigneeRestrack AS
InventorHelge Stray
Life of this patent
Estimating the term…
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.
Claims17
A method for tracing, surveying, monitoring, and/or measuring the movement of aqueous fluids in aqueous and/or non-aqueous media, comprising the addition of one or more chemical compound(s) selected from biphenylmono- and polysulphonic acids and salts thereof, fluorenemono- and polysulphonic acids and salts thereof, and p-terphenylmono- and polysulphonic acids and salts thereof into said aqueous fluids, wherein the chemical compound(s) is detected in said aqueous or non-aqueous media through analysis using analytical techniques such as high performance liquid chromatography with fluorescence detection and/or liquid chromatography-electrospray mass spectrometry such that the movement of said chemical compound(s) are traced, surveyed, monitored, and/or measured in said aqueous or non-aqueous media.
Dependencies are inferred from the claim text.