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lulu_li金虫 (正式写手)
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求助化学翻译
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哪位好心人帮忙翻译一下啊？谢谢啊！着急用啊！ 采用聚合物驱油以提高原油采收率，已成为我国三次采油的主要措施之一，目前广泛采用的聚合物是部分水解聚丙烯酰胺(HPAM)，但HPAM分子链上的羧基对盐极其敏感，在高温高矿化度环境下会导致水溶液黏度大幅度下降，难以适应高温高矿化度油藏的驱油要求。同时聚丙烯酰胺是一具有线性分子结构的聚合物，对剪切作用十分敏感，阴离子型抗盐敏性差，为了改进其性能，必须从改变其线性结构着手，使线性分子部分交胶，成为半网状结构的聚合物，这样剪切安定性、黏温性、抗盐敏性等均得改善。甲叉聚丙烯酰胺由于次甲基的引入，耐温性有所提高，但活性减弱，我们用甲叉聚丙烯酰胺作为主体化合物，通过改性和复配提高了耐盐性，使其具有更广泛的用途，特别是在稠性原油乳化降黏后的开采方面。 |
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mayong11
铁杆木虫 (职业作家)
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lulu_li(金币+20,VIP+0):好，牛，谢谢 3-25 20:12
lulu_li(金币+20,VIP+0):好，牛，谢谢 3-25 20:12
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The use of polymer flooding to enhance oil recovery has become one of the important measures of three Oil Production in our contury, the current widely used polymers are partially hydrolyzed polyacrylamide (HPAM), but the carboxyl group of HPAM molecular chain is extremely sensitive to the salt , in high temperature and high salinity environment , it will cause the viscosity of aqueous solution to decline significantly , that is difficult to adapt to the requirements of flooding in high-temperature and high salinity reservoir .At the same time, polyacrylamide are polymers,which owns the linear molecular structure ,that is sensitive to the role of shear ,but bad to teh anionic salt, in order to improve its performance, we must begin to change its linear structure and make part of the linear molecules cross-gum become a semi-network structure of polymer, such shear stability, viscosity temperature, salt, etc may improve sensitivity.A methylen-forked polyacrylamide has increased anti-temperature ,but the activity weakened, because of the introduction of the methylen. we decide to use a methylen-forked polyacrylamide as the main compounds, improve the salt tolerance by modification and mixtures,which own a broader range of uses, especially in the extraction of the crude oil which the thick were reduced viscosity by emulsion [ Last edited by mayong11 on 2009-3-25 at 18:52 ] |
3楼2009-03-25 18:32:17
lulu_li
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4楼2009-03-25 20:12:21
