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首页> 外文期刊>Journal of Applied Polymer Science >Properties of high-temperature drilling fluids incorporating disodium itaconate/acrylamide/sodium 2-acrylamido-2-methylpropanesulfonate terpolymers as fluid-loss reducers
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Properties of high-temperature drilling fluids incorporating disodium itaconate/acrylamide/sodium 2-acrylamido-2-methylpropanesulfonate terpolymers as fluid-loss reducers

机译：包含衣康酸二钠/丙烯酰胺/ 2-丙烯酰胺基-2-甲基丙烷磺酸钠三元共聚物作为减漏失剂的高温钻井液的性能

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摘要

The terpolymer of disodium itaconate (DIA), acrylamide (AM) and sodium 2-acrylamido-2-methyl-1-propane sulfonate (SAMPS) was synthesized through free-radical polymerization, and characterized using FTIR and TGA methods. The IR spectra of DIA-AM-SAMPS terpolymer confirmed that there was no olefinic band at 1635-1620 cm(-1), while the TGA results revealed that the terpolymer was of higher thermal stability than the SAMPS homopolymer. The filtrate volume reduced with increase of the terpolymer concentration before or after the aging test. The rheology properties of both fresh-water mud and salt-water mud were improved by DIA-AM-SAMPS terpolymer, and apparent viscosity (eta(alpha)); plastic viscosity (eta(b)) and yield point (tau(0)) of salt-water mud reached the smallest values at 1.2%, of the, terpolymer concentration after the aging test. The particle size data demonstrated that only a small change of the clay particle size occurred before and after the aging test at 220degreesC. This further confirmed the thermal stability of the terpolymer-clay dispersion from another point of view. (C) 2002 John Wiley Sons, Inc. [References: 31]
机译：通过自由基聚合反应合成衣康酸二钠（DIA），丙烯酰胺（AM）和2-丙烯酰胺基-2-甲基-1-丙烷磺酸钠（SAMPS）三元共聚物，并利用FTIR和TGA方法对其进行表征。 DIA-AM-SAMPS三元共聚物的红外光谱证实在1635-1620 cm（-1）处没有烯烃带，而TGA结果表明三元共聚物比SAMPS均聚物具有更高的热稳定性。在老化试验之前或之后，随着三元共聚物浓度的增加，滤液体积减小。 DIA-AM-SAMPS三元共聚物改善了淡水泥和盐水泥的流变性，表观粘度（ηα）提高了。老化试验后，盐水泥的塑性粘度（eta（b））和屈服点（tau（0））在三元共聚物浓度的1.2％处达到最小值。粒度数据表明，在220℃时效试验前后，粘土粒度仅发生很小的变化。从另一观点来看，这进一步证实了三元共聚物-粘土分散体的热稳定性。 （C）2002 John Wiley Sons，Inc. [参考：31]

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