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    • 40. 发明申请
    • AQUA-SOLUBLE COPOLYMERS, PREPARATION AND UTILIZATION THEREOF
    • AQUA-SOLUBLE共聚物,其制备和利用
    • WO1983002449A1
    • 1983-07-21
    • PCT/EP1982000264
    • 1982-12-14
    • CASSELLA AKTIENGESELLSCHAFTHOECHST AKTIENGESELLSCHAFTDRESSER INDUSTRIES, INC.
    • CASSELLA AKTIENGESELLSCHAFTHOECHST AKTIENGESELLSCHAFTDRESSER INDUSTRIES, INC.UHL, KlausBANNERMAN, James, K.ENGELHARDT, FriedrichPATEL, Arvind
    • C08F220/58
    • C09K8/035C08F220/58Y10S507/936
    • In order to facilitate drilling in oil-bearing grounds by means of chemical fluids, aqua-soluble polymers are used as lubricant fluid additives in the drilling wells, said aqua-soluble polymers having the following statistic distribution: a) from 5 to 95 % by weight of the constituent groups of formula I; b) from 0 to 30 % by weight of the constituent groups of formula II; c) from 0 to 80 % by weight of the constituent groups of formula III; d) from 5 to 60 % by weight of the constituent groups of formula IV; e) from 0 to 50 % by weight of the constituent groups of formula V; and f) from 5 to 25 % by weight of cross-linking agent in the molecule, wherein R and R represent independently from each other, hydrogen, the methyl or ethyl group or in common the trimethylene or pentamethylene group; R and R represent hydrogen or the methyl group; R represents imidazolyl-(1) or imidazolyl-(2) and R represents hydroxy, alkoxycarbonyl with 1 to 12 atoms of carbon in the alkoxy group, cyclo-alkoxy-carbonyl with 6 to 10 atoms of carbon in the cyclo-alkoxy group, phenyl, alkanoyloxy with 1 to 4 atoms of carbon or beta -hydroxy-alkoxy-carbonyl with 2 or 3 atoms of carbon in the group hydroxy-alkoxy; Y represents a single covalent bond or a group having the formula -CONH-C(CH3)2-CH2- and X represents a cation.
    • 为了便于通过化学流体在含油地面进行钻井,将水溶性聚合物用作钻井中的润滑剂添加剂,所述水溶性聚合物具有以下统计分布:a)5至95% 式I的组分基团的重量; b)0至30重量%的式II的组分基团; c)0至80重量%的式III的组分基团; d)5至60重量%的式IV的组分基团; e)0至50重量%的式V的组分基团; 和f)分子中5至25重量%的交联剂,其中R 1和R 2彼此独立地表示氢,甲基或乙基,或共同的是三亚甲基或五亚甲基 ; R 3和R 5代表氢或甲基; R 4表示咪唑基 - (1)或咪唑基 - (2),R 6表示羟基,在烷氧基中具有1至12个碳原子的烷氧基羰基,具有6至10个碳原子的环烷氧羰基 环烷氧基,苯基,具有1至4个碳原子的烷酰氧基或羟基 - 烷氧基中具有2或3个碳原子的β-羟基 - 烷氧基 - 羰基; Y表示单个共价键或具有式-CONH-C(CH 3)2 -CH 2 - 且X +表示阳离子的基团。