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Views: 0 Author: Site Editor Publish Time: 2025-06-30 Origin: Site
As oil and gas resource exploitation continues to advance to deep, unconventional and high-temperature and high-pressure areas, the requirements for drilling fluid performance are becoming increasingly high. Emulsified drilling fluid is widely used in petroleum drilling operations due to its good lubricity, pollution resistance and well wall stability. However, traditional emulsified drilling fluids are prone to problems such as poor emulsification stability and large filtration loss in high temperature, high salt and high shear environments. In recent years, nanocellulose, as a new green and environmentally friendly nanomaterial, has shown significant application advantages in emulsified drilling fluids.
Nanocellulose is a nano-scale fiber material extracted from natural cellulose and obtained by physical, chemical or enzymatic treatment. It has the advantages of high specific surface area, high strength, renewable, and degradable. Nanocellulose has good dispersion and can combine well with the aqueous and oil phases, showing multiple functions in the emulsified drilling fluid.
1. Improve emulsification stability
. Nanocellulose can be adsorbed on the oil-water interface, forming a stable physical barrier, preventing oil droplets from coalescing, effectively extending the emulsification effect of emulsified drilling fluid, especially in high temperature and high salt conditions.
2. Optimize rheological properties.
Nanocellulose forms a three-dimensional mesh structure in the drilling fluid, which helps maintain good yield value and fluidity, improves the ability to carry drill chips, and avoids sand sinking and drilling accidents at the bottom of the well.
3. Reduce the filtration loss.
The nanocellulose particle size is small and uniformly distributed, which can effectively block the micropores of the formation, form dense mud cakes, reduce the filtration loss, improve the stability of the well wall, and prevent well collapse and leakage.
Green and environmentally friendly : natural source, degradable, environmentally friendly, and in line with the development direction of green drilling fluid.
Wide application range : suitable for high temperature, high pressure and complex formations, with significant performance improvement.
Good economy : the preparation technology continues to mature, the production cost of nanocellulose is gradually reduced, and the promotion value is high.
With the continuous improvement of the requirements for safety, efficiency and green oil drilling at home and abroad, the application research and field test of nanocellulose in emulsified drilling fluid continue to deepen, and it is expected to play an important role in more complex wells in the future, and promote the development of the drilling fluid system toward green and high performance.
Nanjing Tianlu Nano Technology Co., Ltd. is a high-tech enterprise focusing on the research, development, production and sales of nanocellulose materials. With the development concept of ' green materials and innovation-driven ' , the company is committed to providing high-performance and environmentally friendly nanocellulose products and technical solutions for oil drilling, papermaking, food packaging, coatings and other industries.
Relying on its independent innovative production process and strict quality management system, the nanocellulose produced has the advantages of good dispersion, high purity and stable performance, and is highly recognized by domestic and foreign customers. In the future, Nanjing Tianlu Nano Technology Co., Ltd. will continue to increase investment in technology research and development, promote the widespread application of nanocellulose in emulsified drilling fluid and other fields, and contribute to green and efficient energy development.
