Process for reducing the tendency of hydrates to agglomerate in production effluents containing paraffin oils
AssigneeInstitut Francais du Petrole
InventorsMarie Velly, Anne-Sophie Delion, Jean-Pierre Durand
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Abstract
The invention concerns a process for reducing the tendency of hydrates in a fluid comprising at least water, a gas and a paraffin oil to agglomerate, by addition of a mixture of at least two organosoluble additives, namely at least one polyisobutene-polyethyleneglycol block copolymer and at least one copolymer of an alkyl (meth)acrylate and a nitrogen-containing monomer. These organosoluble copolymers are generally introduced at an overall concentration of 0.05% to 5% by weight with respect to the water present in the medium.
Claims11
A process for inhibiting or retarding the formation, growth and/or agglomeration of hydrates in a fluid comprising at least water, a gas and a paraffin oil, under conditions in which hydrates can form from the water and the gas, characterized in that an organosoluble additive composition comprising at least two constituents is incorporated into said fluid, namely at least one polyisobutene-polyethyleneglycol block copolymer and at least one copolymer of an alkyl (meth)acrylate and a nitrogen-containing monomer.
Dependencies are inferred from the claim text.