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    • 41. 发明授权
    • Method for inhibiting or retarding hydrate formation or agglomeration in
a production effluent
    • 抑制或阻滞生产流出物中水合物形成或凝聚的方法
    • US5981816A
    • 1999-11-09
    • US857048
    • 1997-05-15
    • Anne SinquinMarie VellyJean-Pierre Durand
    • Anne SinquinMarie VellyJean-Pierre Durand
    • C07C7/20C10L3/00
    • C10L3/00
    • The inhibiting or retarding hydrate formation, growth and/or agglomeration in a fluid comprising water and gases, is accomplished by addition of at least one hydrosoluble homopolymer or copolymer derived from at least one nitrogen-containing monomer selected from cationic monomers, for example those containing at least one quaternary ammonium moiety, amphoteric monomers, for example those containing at least one quaternary ammonium moiety and at least one carboxylate or sulphonate moiety, and various neutral monomers, said hydrosoluble homopolymer or copolymer being neutral or anionic, or consisting of a polyampholyte. The homopolymer, copolymer or mixture of polymers optionally mixed with an alcohol is generally incorporated into the fluid to be treated at a concentration of 0.05% to 5% by weight with respect to the quantity of water in the medium.
    • 包含水和气体的流体中的抑制或阻滞水合物的形成,生长和/或附聚是通过加入至少一种衍生自至少一种选自阳离子单体的含氮单体的水溶性均聚物或共聚物,例如含有 至少一个季铵部分,两性单体,例如含有至少一个季铵部分和至少一个羧酸酯或磺酸酯部分的那些,以及各种中性单体,所述水溶性均聚物或共聚物是中性或阴离子的,或由聚阴离子形成。 任选与醇混合的聚合物,共聚物或聚合物的混合物通常以相对于介质中的水的量为0.05-5重量%的浓度掺入待处理的流体中。
    • 45. 发明授权
    • Process for reducing the agglomeration tendency of hydrates in the
production effluent
    • 降低生产流出液中水合物聚集倾向的方法
    • US5426258A
    • 1995-06-20
    • US139666
    • 1993-10-22
    • Michel ThomasAnne-Sophie BaleyJean-Pierre Durand
    • Michel ThomasAnne-Sophie BaleyJean-Pierre Durand
    • C10L3/10C07C7/20C09K8/52E21B37/06E21B43/22C10G33/04
    • C09K8/52C07C7/20C09K2208/22
    • A description is given of a process for reducing the agglomeration tendency of hydrates within a fluid incorporating at least water and hydrocarbons, liable to form hydrates, under conditions where said hydrates may form, characterized in that into said fluid is incorporated an alkylene oxide-based hydrosoluble polymer or copolymer containing at least one --(OR)--.sub.n sequence, in which R represents a hydrocarbon group having 2 or 3 carbon atoms and n represents the average degree of polymerization of said sequence, at least one of the --(OR)--.sub.n sequences being an ethylene polyoxide sequence, associated with a thermodynamic inhibitor of the formation of hydrates, e.g. an alcohol or a glycol. This process is particularly appropriate for the case where the fluid to be treated contains a high proportion of water, e.g. more than 30% by weight. The presence of salts in the water can at least partly dispense with the addition of alcohols or glycols.
    • 给出了在可以形成所述水合物的条件下,降低至少引入水和烃的流体中的水合物的聚集趋势的方法,其特征在于,在所述流体中加入基于环氧烷的 含有至少一个(OR)-n序列的水溶性聚合物或共聚物,其中R表示具有2或3个碳原子的烃基,n表示所述序列的平均聚合度, - (OR) -n序列是与形成水合物的热力学抑制剂相关的乙烯多氧化物序列,例如 酒精或乙二醇。 该方法特别适用于待处理流体含有高比例的水的情况,例如, 超过30%重量。 水中的盐的存在可以至少部分地不加入醇或二醇。