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Multifunctional characteristics of new carboxymethylcellulose-based graft copolymers for oilfield drilling

机译:用于油田钻井的新型羧甲基纤维素基接枝共聚物的多功能特性

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摘要

New carboxymethylcellulose-based graft copolymers with an amphoteric character were synthesized by grafting 2-(dimethylamino)ethyl methacrylate onto carboxymethylcellulose using a persulfate-initiated solution polymerization technique. Their multifunctional characteristics as an oilfield drilling-mud additive were investigated with respect to shale inhibition, viscosity building, and filtration control. It was shown that the graft copolymer with an appropriate grafting extent is characteristic of both good shale inhibition and mud properties and may overcome the limitations inherent; in commonly used anionic and cationic polymeric additives. (C) 2000 John Wiley & Sons, Inc. [References: 37]
机译:通过使用过硫酸盐引发的溶液聚合技术,将甲基丙烯酸2-(二甲基氨基)乙酯接枝到羧甲基纤维素上,合成了具有两性的基于羧甲基纤维素的新型接枝共聚物。研究了它们作为油田钻井泥浆添加剂的多功能特性,涉及页岩抑制作用,增粘作用和过滤控制作用。结果表明,具有适当接枝程度的接枝共聚物具有良好的页岩抑制性能和泥浆性质,可以克服固有的局限性。在常用的阴离子和阳离子聚合物添加剂中。 (C)2000 John Wiley&Sons,Inc. [参考:37]

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