相关实验视频
Updated: Jun 23, 2026

06:15
Preparation of Binary and Ternary Deep Eutectic Systems
Published on: October 31, 2019
11.9K
基于酸的天然深溶性溶剂在钻井流体中的新型应用,以防止页岩膨胀
Muhammad Hammad Rasool1, Maqsood Ahmad2, Numair Ahmed Siddiqui3
1Department of Petroleum Geosciences, Universiti Teknologi Petronas, Bandar , Seri Iskander, Malaysia. Muhammad_19000949@utp.edu.my.
Scientific reports
|October 29, 2024
概括
天然深层柔性溶剂 (NADES) 为钻井流体提供了一个环保的解决方案,大大减少了页岩膨胀,提高了井口稳定性. 这项研究表明NADESES.
科学领域:
- 石油工程是石油工程中的一个.
- 绿色化学 绿色化学
- 材料科学 材料科学 材料科学
背景情况:
- 页岩在粘性水库中的膨胀导致井口不稳定,需要有效的页岩抑制剂.
- 传统的页岩抑制剂,如离子液体 (ILs) 和深层环氧溶剂 (DES),存在环境和成本问题.
- 天然深层乳化溶剂 (NADES) 成为一种可持续和环保的替代品.
研究的目的:
- 为了研究与酸和糖氨酸配制的NADES在水性钻井液中作为页岩抑制剂的有效性.
- 评估基于NADES的钻井泥的物理化学,风学,过和页岩抑制特性.
- 为了比较基于NADES的泥土与常规抑制剂 (KCl,ILs,DES) 的性能.
主要方法:
- 根据API 13B-1标准使用酸 (HBA) 和甘油 (HBD) 制备NADES.
- 合成的NADES的物理化学特征.
- 钻井流体性能的评估:风学,过和页岩抑制.
- 与KCl,基于伊米达的IL和胆化物进行比较分析:基于尿素-DES的泥.
主要成果:
- 纳德斯提高了产量点与塑料粘度比率 (YP/PV).
- 在3%的NADES度下,泥饼厚度减少了26%,过体量减少了30.1%.
- 纳德斯实现了49.14%的页岩膨胀抑制,页岩恢复率提高了86.36%.
结论:
- NADES在提高钻井流体性能和抑制页岩膨胀方面表现出卓越的表现.
- 该机制涉及对表面活动,泽塔潜力和粘土层间距的修改.
- 纳德斯为钻井流体应用提供了一种无毒,具有成本效益和环境可持续的解决方案.
相关概念视频
Solvents
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
A...
Leveling Effect and Non-Aqueous Acid-Base Solutions
This lesson defines the leveling effect in acidic and basic solutions and its role in aqueous and non-aqueous solutions. It is essential to understand the competing nature of various species in a chemical system.
The Leveling Effect of a Solvent
A generic acid (HA) reacts with the generic base (B-) to yield the corresponding conjugate base (A-) and conjugate acid (HB):
The Leveling Effect of a Solvent
A generic acid (HA) reacts with the generic base (B-) to yield the corresponding conjugate base (A-) and conjugate acid (HB):
Titration in Nonaqueous Solvents
Most acid-base titrations are performed in an aqueous medium. In aqueous titrations, water competes with weaker acids or bases for proton donation or acceptance, leading to ambiguous endpoints in the titration curve. Water also affects the partial ionization of weak acids or bases. For example, water accepts a proton from acetic acid to form hydronium and acetate ions. The hydronium ion formed is a stronger acid than acetic acid, and the acetate ion is a stronger base than water. As a result,...
Freezing Point Depression and Boiling Point Elevation
When a non-volatile solute is added to a pure solvent, it results in the lowering of the freezing point of the solvent. This phenomenon is called freezing point depression. The extent to which the freezing point is lowered depends on the molality of the solute -the number of moles of solute per kilogram of solvent and the cryoscopic constant of the solvent.From the plot of chemical potential, μ, against temperature, it is evident that the μ of both solid and liquid solvents decrease with...
Leveling Effect
In acid-base chemistry, the leveling effect refers to the limitation imposed by the solvent on the strength of acids and bases in solution. When a base stronger than the solvent's conjugate base is used, it deprotonates the solvent until the base is entirely consumed, making it ineffective against weaker acids. Conversely, an acid stronger than the solvent's conjugate acid protonates the solvent until the acid is depleted, rendering it ineffective against weaker bases. Essentially, the solvent...
Microbial Leaching
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...

