Company Filing History:
4 out of 355 
3 out of 3 
2 out of 406 Years Active: 2020-2021
Title: The Innovative Contributions of Changjiang Liu
Introduction
Changjiang Liu, an accomplished inventor based in Shandong, China, has made significant strides in the field of gas extraction technologies. With a total of four patents to his name, his work primarily focuses on novel methods and systems for enhancing efficiency within tectonically-deformed coal seams.
Latest Patents
Liu's most recent patents include a comprehensive simulation test system designed for gas extraction from tectonically-deformed coal seams in situ. This innovative system utilizes a series of advanced subsystems, such as:
1. A coal series stratum structure reconstruction subsystem that mimics a tectonically-deformed coal reservoir.
2. A horizontal well drilling and reaming simulation subsystem that constructs a U-shaped well, allowing for effective reaming in horizontal sections.
3. A depressurization excitation simulation subsystem which applies pressure-pulse excitation to facilitate the movement of a coal-liquid-gas mixture towards a vertical well section.
4. A product lifting simulation subsystem focused on pulverizing coal efficiently while lifting the mixture.
5. A gas-liquid-solid separation simulation subsystem that effectively separates coal, liquid, and gas mixtures.
6. A monitoring and control subsystem designed to oversee and regulate the entire operational process in real time.
In addition to the system, Liu has developed a simulation test method for the same extraction process, further emphasizing his focus on improving methodologies for gas extraction in challenging environments.
Career Highlights
Changjiang Liu's career has been marked by impactful contributions to both academia and industry. He has worked at notable institutions such as the China University of Mining and Technology, where his research and innovations have gained recognition in the field of geoscience and technology.
Collaborations
Throughout his career, Liu has collaborated with esteemed colleagues, including Shuxun Sang and Haiwen Wang, to advance research and develop innovative solutions in the sector. These collaborations have played a key role in the successful execution of projects and patent applications.
Conclusion
Changjiang Liu's work exemplifies dedication to innovation and the practical application of research in gas extraction technologies. His patents demonstrate a commitment to advancing the field and addressing the complexities of working with tectonically-deformed coal seams. As Liu continues to develop and refine his systems, his contributions promise to have a lasting impact on the industry.
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