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首页> 外文期刊>Journal of Vinyl & Additive Technology >Properties of High-Temperature-Resistant Drilling Fluids Incorporating Acrylamide/(Acrylic Acid)/(2-Acrylamido-2-Methyl-1 -Propane Sulfonic Acid) Terpolymer and Aluminum Citrate as Filtration Control Agents
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Properties of High-Temperature-Resistant Drilling Fluids Incorporating Acrylamide/(Acrylic Acid)/(2-Acrylamido-2-Methyl-1 -Propane Sulfonic Acid) Terpolymer and Aluminum Citrate as Filtration Control Agents

机译：含丙烯酰胺/（丙烯酸）/（2-丙烯酰胺基-2-甲基-1-甲基磺酸）三元共聚物和柠檬酸铝作为过滤控制剂的耐高温钻井液的性能

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摘要

A terpolymer of acrylamide (AM), acrylic acid (AA), and 2-acrylamido-2-methyl-1 -propane sulfonic acid (AMPS) was synthesized by a free-radical solution polymerization technique, characterized by FTIR methods, and applied together with aluminum citrate in oilfield drilling as a high-temperature-resistant filtration control agent. Before and after thermal aging for 16 h at 180 C, the combined effect of the terpolymer and aluminum citrate on the Bingham-type rheological and fluid-loss properties of the corresponding fresh-water and salt-water muds was further investigated. The results showed that before the thermal aging, there was a similar changing trend in the rheological and fluid-loss properties of the muds with terpolymer concentration, regardless of the presence of aluminum citrate. After the thermal aging, some hydrophilic polycomplexes of AM-AA-AM PS terpolymer with aluminum citrate may have been formed and consequently inhibited viscosity loss of the muds, thereby improving the fluid-loss properties. A possible mechanism is proposed to explain the improvement.
机译：通过自由基溶液聚合技术合成了丙烯酰胺（AM），丙烯酸（AA）和2-丙烯酰胺基-2-甲基-1-丙烷磺酸（AMPS）三元共聚物，并通过FTIR方法表征，并一起应用与柠檬酸铝在油田钻井中用作耐高温过滤控制剂。在180℃下热老化16 h之前和之后，进一步研究了三元共聚物和柠檬酸铝对相应淡水和盐水泥的Bingham型流变和失水性能的综合影响。结果表明，无论柠檬酸铝的存在如何，在热老化之前，随三元共聚物浓度的变化，泥浆的流变和失水特性都有相似的变化趋势。在热老化之后，可能已经形成了AM-AA-AM PS三元共聚物与柠檬酸铝的一些亲水性聚络合物，因此抑制了泥浆的粘度损失，从而改善了滤失性。提出了一种可能的机制来解释这种改进。

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