Jiuyuan Fan

Title: Jiuyuan Fan: Innovator in Drilling Technology

Introduction

Jiuyuan Fan is a prominent inventor based in Qingdao, China. He has made significant contributions to the field of drilling technology, particularly in the context of low-permeability gassy coal seams. His innovative approach has led to the development of advanced devices and methods that enhance drilling efficiency and safety.

Latest Patents

Jiuyuan Fan holds a patent for a "Drilling-slitting-sealing-fracturing device and method for a deep low-permeability gassy coal seam." This device incorporates a drilling control system, a high-pressure water power system, a water pressure grading control system, and a fracturing and sealing control system. The drilling control system is designed to adjust the drilling direction and the water supply pressure of the drill rod. The high-pressure water power system supplies high-pressure water at varying pressures to the device. The water pressure grading control system ensures that the flushing water pressure for drill cuttings remains below 5 MPa, while the slitting pressure is maintained between 25-35 MPa. Additionally, the sealing pressure with a borehole sealing capsule is set between 35-40 MPa, and the pressure for further relief and permeability enhancement of the coal seam is between 40-50 MPa. The fracturing and sealing control system manages borehole sealing and hydrofracturing operations.

Career Highlights

Jiuyuan Fan is affiliated with Shandong University, where he continues to engage in research and development in drilling technologies. His work has been instrumental in advancing methods that address the challenges associated with drilling in low-permeability gassy coal seams.

Collaborations

Throughout his career, Jiuyuan Fan has collaborated with notable colleagues, including Gang Wang and Zhiyuan Liu. These partnerships have fostered innovation and contributed to the successful development of his patented technologies.

Conclusion

Jiuyuan Fan's contributions to drilling technology exemplify the impact of innovative thinking in addressing complex engineering challenges. His patented device represents a significant advancement in the field, showcasing his dedication to improving drilling methods for low-permeability gassy coal seams.