A composition is provided for sulfate scale removal, said composition comprising one or more chelants and one or more accelerants, wherein said accelerants serve to occupy reactive sites of cations of the sulfate scale. The composition is preferably provided wherein said one or more chelants comprise a mixture of two or more polyaminopolycarboxylic acids. The composition if further preferably provided, wherein said one or more accelerants promote rapid complexation of cations of the sulphate scale. The composition is further still preferably provided, wherein said one or more accelerants comprise substances that have a smaller molecule size than that of said one or more chelants.

A composition is provided for sulfate scale removal, said composition comprising one or more chelants and one or more accelerants, wherein said accelerants serve to occupy reactive sites of cations of the sulfate scale. The composition is preferably provided wherein said one or more chelants comprise a mixture of two or more polyaminopolycarboxylic acids. The composition if further preferably provided, wherein said one or more accelerants promote rapid complexation of cations of the sulphate scale. The composition is further still preferably provided, wherein said one or more accelerants comprise substances that have a smaller molecule size than that of said one or more chelants.

The present disclosure relates to methods and compositions to control inorganic sulfide scale formations in oilfield applications, including flow lines, wellbores, and subterranean formations. An embodiment of the present disclosure is a method comprising: providing a treatment fluid comprising: a base fluid, a scale inhibitor, and a water clarifying agent; introducing the treatment fluid into a target region, wherein an inorganic cation and a sulfide anion are present in the target region; allowing the inorganic cation and the sulfide anion to form a sulfide precipitate; and using the treatment fluid to remove at least a portion of the sulfide precipitate from the target region.

The present disclosure relates to methods and compositions to control inorganic sulfide scale formations in oilfield applications, including flow lines, wellbores, and subterranean formations. An embodiment of the present disclosure is a method comprising: providing a treatment fluid comprising: a base fluid, a scale inhibitor, and a water clarifying agent; introducing the treatment fluid into a target region, wherein an inorganic cation and a sulfide anion are present in the target region; allowing the inorganic cation and the sulfide anion to form a sulfide precipitate; and using the treatment fluid to remove at least a portion of the sulfide precipitate from the target region.

A method is disclosed that includes introducing a scavenger composition directly into a fluid stream or introducing the stream treated to a system designed to increase contact of the fluid with the scavenger contaminated with a sulfur contaminant such that the scavenger composition reacts with the sulfur contaminant to reduce an amount of the sulfur contaminant in the fluid stream, wherein the scavenger composition includes a hydrogen sulfide scavenger and a linear anionic polymer. A composition is disclosed that includes a hydrogen sulfide scavenger and a linear anionic polymer.

A method is disclosed that includes introducing a scavenger composition directly into a fluid stream or introducing the stream treated to a system designed to increase contact of the fluid with the scavenger contaminated with a sulfur contaminant such that the scavenger composition reacts with the sulfur contaminant to reduce an amount of the sulfur contaminant in the fluid stream, wherein the scavenger composition includes a hydrogen sulfide scavenger and a linear anionic polymer. A composition is disclosed that includes a hydrogen sulfide scavenger and a linear anionic polymer.

Novel hybrid nanoparticles, useful for inhibiting or slowing down the formation of sulfur deposits or minerals in a well during the extraction of gas or oil. Specifically, the nanoparticles each include (i) a polyorganosiloxane (POS) matrix; and, optionally as a coating over a lanthanide oxide core, (iii) at least one polymeric scale inhibitor during the extraction of gas or oil. The invention also relates to the method for obtaining the nanoinhibitors and the application of same.

Novel hybrid nanoparticles, useful for inhibiting or slowing down the formation of sulfur deposits or minerals in a well during the extraction of gas or oil. Specifically, the nanoparticles each include (i) a polyorganosiloxane (POS) matrix; and, optionally as a coating over a lanthanide oxide core, (iii) at least one polymeric scale inhibitor during the extraction of gas or oil. The invention also relates to the method for obtaining the nanoinhibitors and the application of same.

A composition for inhibiting corrosion and/or removing hydrocarbonaceous deposits in oil and gas applications is provided. The composition comprises an iron sulfide dissolver, an organic solvent, and a corrosion inhibitor.

A composition for inhibiting corrosion and/or removing hydrocarbonaceous deposits in oil and gas applications is provided. The composition comprises an iron sulfide dissolver, an organic solvent, and a corrosion inhibitor.