相关实验视频
Updated: Jan 28, 2026

06:40
Synthesis of a Water-soluble Metal–Organic Complex Array
Published on: October 8, 2016
12.0K
油水双相金属有机超分子凝用于失去循环控制:配方优化,凝机制和插电性能
Qingwang Li1,2,3, Songlei Li4, Ye Zhang1,2
1National Joint Engineering Research Center for Shale Gas Exploration and Development, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China.
Gels (Basel, Switzerland)
|January 27, 2026
概括
一种新型的双前体油水双相金属有机超分子凝 (MOSG) 提供了基于石油的钻井液 (OBDF) 流失的循环区域的快速现场密封. 这种先进的凝具有出色的耐热性和抗剪切性能,提高了井口的稳定性.
科学领域:
- 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.
- 超分子化学 超分子化学
背景情况:
- 基于石油的钻井液 (OBDF) 中的流失循环是一个持续的挑战,因为传统材料缺乏兼容性和可控制的现场密封能力.
- 现有的解决方案通常依赖于用于水性介质的桥梁/包装机制或凝系统,这些在OBDF环境中是无效的.
研究的目的:
- 开发和表征一种新型的双前体油水双相金属有机超分子凝 (MOSG),用于在OBDF损失区域有效地在现场密封.
- 研究MOSG在钻井操作相关的各种条件下的凝机制和性能.
主要方法:
- 使用油相与水性凝溶液的特定比率和关键成分 (Span 85,TXP-4,NaAlO2) 的配方优化.
- 在不同温度,时间,pH值和剪切条件下,使用表面粘度测量和减弱总反射率里埃变换红外光谱 (ATR-FTIR) 评估凝动力学和稳定性.
- 通过微结构分析,热重力测量分析,质测试,模拟插头实验和抗剪切评估,对MOSG结构和性能进行全面的描述.
主要成果:
- 高温 (30-70°C) 和轻微性条件 (pH ≈ 8.10-8.30) 促进了优化 MOSG 的形成,促进了 P-O-Al 协调和结合.
- MOSG表现出显著的粘性弹性和高达193°C的耐热性,粘度保持率超过60%,在高剪切率 (380rpm) 下恢复70%.
- 模拟的堵塞试验证明了MOSG能够形成密集的密封层,在透的结构中达到2.27 MPa/m的承压梯度,并提高断裂承压能力.
结论:
- 开发的双前体MOSG为OBDF流失区域的现场密封提供了高度有效的解决方案.
- 由于MOSG的强大性能,包括快速密封,热稳定性和剪切性,使其成为提高钻井效率和井口完整性的有希望的材料.
相关概念视频
Formation of the Platelet Plug
9.1K
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
9.1K
Alkali Metals
24.5K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
Table 1: Properties of the alkali metals
24.5K
Bonding in Metals
52.3K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.
52.3K
Metallic Solids
20.6K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.6K
Metal-Ligand Bonds
24.2K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
24.2K
Fetal Circulation
2.8K
Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
2.8K

