C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/588 (2006.01)
Patent
CA 2441739
Disclosed are paraffin inhibitors prepared by admixing a polymer having the characteristic of inhibiting paraffin crystalline growth in formation fluid from oil and gas wells with a first solvent selected from the weak to moderate wax solvents and a second solvent selected from the strong wax solvents. Exemplary weak to moderate wax solvents include benzene, toluene, xylene, ethyl benzene, propyl benzene, trimethyl benzene and mixtures thereof. Exemplary strong wax solvents include cyclopentane, cyclohexane, carbon disulfide, decalin and mixtures thereof. The solvent system disclosed has desirably better solubility with the polymers, even at reduced temperatures, than either solvent alone.
On divulgue des inhibitrices de la production de paraffines préparées en mélangeant un polymère ayant la caractéristique d'inhiber la croissance de paraffines cristallines dans la formation de fluides dans les puits de pétrole et de gaz avec un premier solvant sélectionné de solvants de cire faibles à modérés et un deuxième solvant choisi parmi les solvants de cire puissants. Les solvants de cire faibles à modérés exemplaires incluent le benzène, le toluène, le xylène, l'éthylbenzène, le propylbenzène, le triméthylebenzène et leurs mélanges. Les solvants de cire puissants exemplaires comprennent le cyclopentane, le cyclohexane, le disulfure de carbone, la décaline et leurs mélanges. Le système de solvant divulgué comporte une meilleure solubilité souhaitable avec les polymères, même à des températures réduites, que l'un ou l'autre solvant pris seul.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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