Zhiyuan Liu

Title: Innovations of Zhiyuan Liu in Coal Seam Gas Control

Introduction

Zhiyuan Liu is a notable inventor based in Qingdao, China. He has made significant contributions to the field of coal seam gas control, particularly through his innovative patents. With a total of 2 patents, Liu's work focuses on enhancing the efficiency and safety of gas extraction from coal seams.

Latest Patents

Liu's latest patents include a "Drilling-slitting-sealing-fracturing device and method for a deep low-permeability gassy coal seam." This device features a comprehensive drilling control system, a high-pressure water power system, and a fracturing and sealing control system. The drilling control system is designed to adjust the drilling direction and water supply pressure of the drill rod. The high-pressure water power system supplies varying pressures of high-pressure water to the device, while the water pressure grading control system ensures optimal flushing and sealing pressures.

Another significant patent is the "Steeply-inclined ultra-thick coal seam gas control method based on binary composite liquid." This method utilizes a clean fracturing fluid system and a microemulsion as a binary composite liquid. It involves injecting this liquid into the coal mass to create an effective gas extraction system. The method also includes a thorough analysis of gas extraction flow rates and permeability coefficients, ensuring a comprehensive approach to gas control in steeply-inclined ultra-thick coal seams.

Career Highlights

Zhiyuan Liu is affiliated with Shandong University, where he continues to advance research in coal seam gas extraction technologies. His innovative approaches have garnered attention in the field, contributing to safer and more efficient methods of gas extraction.

Collaborations

Liu has collaborated with notable colleagues such as Gang Wang and Lulu Sun, further enhancing the impact of his research and innovations in the industry.

Conclusion

Zhiyuan Liu's contributions to coal seam gas control through his innovative patents demonstrate his commitment to advancing technology in this critical field. His work not only enhances extraction methods but also promotes safety and efficiency in gas production.