在酸岩反应和性能测试期间,两性聚合物的自我加厚机制
Ping Yi1,2, Ruoqin Yan1,2, Yulong Liu1,2
1Oil and Gas Technology Research Institute of Changqing Oilfield Company, CNPC, Xi'an, Shaanxi, China.
Frontiers in chemistry
|February 5, 2026
概括
开发了一种新型的两离子自加厚酸ADAM. 它在对Ca2+的反应中显著增加粘度,并且在高温下保持稳定性,使其适合油田应用.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 石油工程是石油工程中的一个.
背景情况:
- 酸化对于提高碳酸盐储库中的石油回收至关重要.
- 传统的酸化液体缺乏足够的粘度和热稳定性,以适应高温应用.
- 开发先进的流体系统对于优化酸化效率至关重要.
研究的目的:
- 合成和描述一种新型的两离子自我加厚酸 (ADAM).
- 为了研究ADAM对酸岩反应和Ca2+度的粘度反应.
- 评估ADAM在高温水库中潜在使用的热和剪切稳定性.
主要方法:
- 使用烯胺,甲基烯氧乙三甲基氨基化物和2-烯胺-2-甲基硫酸合成ADAM.
- 在酸岩反应模拟过程中对粘度进行测量.
- 在高温 (90-150°C) 和剪切条件下使用HAKKE MARS IV的ADAM稳定性的风湿学分析.
主要成果:
- 亚当表现出一种依赖于Ca2+度的自我加厚行为.
- 反应后粘度增加了183% (110 mPa·s).
- 与ADC系统相比,ADAM在高温下 (123,83,28mPa·s在90,120,150°C) 显示出更好的粘度保留.
结论:
- 开发的ADAM配方具有有效的自我加厚特性.
- 亚当显示出极好的温度和剪切稳定性,性能优于传统系统.
- 它的特性使得ADAM成为在高温碳酸盐储中大规模应用的有希望的候选者.
更多相关视频
11:38Environmentally-controlled Microtensile Testing of Mechanically-adaptive Polymer Nanocomposites for ex vivo Characterization
Published on: August 20, 2013
10.6K
12:51A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles
Published on: November 14, 2015
10.4K
相关概念视频
Reaction Mechanisms
30.9K
Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
30.9K
Polymers
41.0K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
41.0K
Acids, Bases and Neutralization Reactions
63.8K
An acid-base reaction is one in which a hydrogen ion, H+, is transferred from one chemical species to another. Such reactions are of central importance to numerous natural and technological processes, ranging from the chemical transformations within cells or lakes and oceans to the industrial-scale production of fertilizers, pharmaceuticals, and other substances essential to the society.
63.8K
Acids, Bases and Neutralization Reactions
10.3K
Acids and bases play several important roles in biology. The pH of a biological system can significantly impact the function of biological molecules, including enzymes, proteins, and nucleic acids. For example, enzymes have optimal pH ranges for their activity, and changes in pH can denature or alter their structure, affecting their function. Acids and bases also play a crucial role in cellular signaling and communication. The pH of the extracellular fluid around cells can influence the...
10.3K
SN2 Reaction: Mechanism
17.5K
The kinetic studies of SN2 reactions suggest an essential feature of its mechanism: it is a single-step process without intermediates. Here, both the nucleophile and the substrate participate in the rate-determining step.
The presence of the more electronegative halogen in the substrate creates a polarized carbon-halide bond. The halide pulls the electron cloud generating an electrophilic center at the carbon atom. Thus, the carbon atom carries a partial positive charge while the halide has a...
The presence of the more electronegative halogen in the substrate creates a polarized carbon-halide bond. The halide pulls the electron cloud generating an electrophilic center at the carbon atom. Thus, the carbon atom carries a partial positive charge while the halide has a...
17.5K
SN1 Reaction: Mechanism
14.3K
Kinetic studies of ionization of a tertiary halide in a protic solvent suggest that only the substrate participates in the rate-determining step (slow step). The nucleophile is involved only after the slowest step. The SN1 reaction takes place in a multiple-step mechanism.
Firstly, the haloalkane ionizes to generate a carbocation intermediate and a halide ion. This heterolytic cleavage is highly endothermic with large activation energy. The ionization of the substrate, facilitated by a...
Firstly, the haloalkane ionizes to generate a carbocation intermediate and a halide ion. This heterolytic cleavage is highly endothermic with large activation energy. The ionization of the substrate, facilitated by a...
14.3K
