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    • 2. 发明申请
    • METHOD TO INCREASE THE VISCOSITY OF HYDROGELS BY CROSSLINKING A COPOLYMER IN THE PRESENCE OF DISSOLVED SALT
    • 通过在溶解盐存在下交联共聚物来增加水凝胶粘度的方法
    • WO2015113577A1
    • 2015-08-06
    • PCT/EP2014/000252
    • 2014-01-30
    • TOUGAS OILFIELD SOLUTIONS GMBH
    • DUGONJIC-BILIC, FatimaBÜHLER, JasminUSENER, CarolinNEUBER, Marita
    • C09K8/68A61L27/52
    • C09K8/685C08J3/075C08J3/24C08J2333/26C09K8/887E21B43/26E21B43/267
    • Disclosed is a method to synthesize hydrogels with increased viscosity from a solution that contains water, a copolymer and a dissolved salt of an alkaline metal, an earth alkaline metal and/or an organic amine by addition of a zirconium compound as a crosslinker which comprises i) providing a copolymer containing 0.005 to 20 weight % of structural units of formula I, 4.995 to 40 weight% of structural units of formula II and 5 to 95 weight % of structural units of formula III wherein R 1 , R 4 and R 6 are independently of one another hydrogen or C 1 -C 6 -alkyl,R 2 , R 3 and R 5 are independently of one another hydrogen, a cation of an alkaline metal, of an earth alkaline metal, of ammonia and/or of an organic amine, R 7 and R 8 are independently of one another hydrogen or C 1 -C 6 -alkyhA is a covalent C-P bond or a two-valent organic bridge group, and B is a covalent C-S bond or a two-valent organic brigde group, and wherein the percentage of the structural units refers to the total mass of the copolymer, preparing an aqueous solution by adding the copolymer prepared in step i) to a solution comprising water and the salt of the alkaline metal, the earth alkaline metal and/or the organic amine, forming a network of a hydrogel by addition of at least one Zirconium- compound to the aqueous solution prepared in step ii), and selecting the amount of the salt of the alkaline metal, the earth alkaline metal and/or the organic amine in the hydrogel to range from 0.15 and 10 weight%, referring to the total mass of the hydrogel. The method can be used to prepare hydrogels used in fracturing operations.
    • 公开了一种通过添加锆化合物作为交联剂,从含有水,共聚物和碱金属,碱土金属和/或有机胺的溶解盐的溶液中合成具有增加粘度的水凝胶的方法,该方法包括i )提供含有0.005-20重量%式I结构单元,4.995-40重量%式II结构单元和5-95重量%式III结构单元的共聚物,其中R 1,R 4和R 6独立地为一个 另一个氢或C 1 -C 6烷基,R 2,R 3和R 5彼此独立地为氢,碱金属阳离子,碱土金属的氨和/或有机胺,R 7和R 8独立地为 另一个氢或C 1 -C 6烷基是共价CP键或2价有机桥基,B是共价CS键或2价有机基团,其中结构单元的百分比是指 共聚物的总质量 通过将步骤i)中制备的共聚物加入到包含水和碱金属盐,碱土金属和/或有机胺的盐的溶液中制备水溶液,通过加入至少形成水凝胶网络 一种锆化合物与步骤ii)中制备的水溶液反应,并将水凝胶中的碱金属,碱土金属和/或有机胺的盐的量选择为0.15-10重量%,参考 水凝胶的总质量。 该方法可用于制备压裂作业中使用的水凝胶。
    • 10. 发明申请
    • METHOD FOR ENHANCING METAL CORROSION INHIBITION IN OIL AND NATURAL GAS PRODUCTION
    • 提高石油和天然气生产中金属腐蚀抑制的方法
    • WO2018077743A2
    • 2018-05-03
    • PCT/EP2017/076841
    • 2017-10-20
    • TOUGAS OILFIELD SOLUTIONS GMBH
    • GERLACH, BenjaminDUGONJIC-BILIC, FatimaMEURER, JasminNEUBER, Marita
    • C09K8/54C09K8/74C23F11/00
    • The instant invention relates to the use of synthetic polymer in combination with an organic corrosion inhibiting compound having at least one unsaturated carbon-carbon bond, preferably selected from the group of acetylenic alcohols, α,β-unsaturated aldehydes, and/or α-alkenyl phenones, reducing or inhibiting corrosion of metal equipment being present during acidizing treatment in gas- or oilfield reservoirs with one or more acids. A further aspect of the invention is a method for reducing or inhibiting corrosion of steel equipment being present during an acid treatment of a gas- or oilfield reservoir with one or more acids by using a specific synthetic polymer as corrosion inhibitor in combination with an organic corrosion inhibiting compound having at least one unsaturated carbon-carbon bond, preferably selected from the group of acetylenic alcohols, α,β-unsaturated aldehydes, and/or α-alkenyl phenones.
    • 本发明涉及合成聚合物与具有至少一个不饱和碳 - 碳键的有机腐蚀抑制化合物的组合的用途,所述化合物优选选自炔醇,α,β-不饱和 醛和/或α-烯基苯酮,从而减少或抑制在用一种或多种酸进行酸化处理期间存在于气田或油田储层中的金属设备的腐蚀。 本发明的另一方面是一种用于减少或抑制在用一种或多种酸对气田或油田储层进行酸处理期间存在的钢设备的腐蚀的方法,其通过使用特定的合成聚合物作为腐蚀抑制剂并结合有机腐蚀 具有至少一个不饱和碳 - 碳键的抑制性化合物,优选选自炔醇,α,β-不饱和醛和/或α-烯基苯酮类。