Xiangyang Dong

Title: Innovations of Xiangyang Dong in Core Drilling Technology.

Introduction

Xiangyang Dong is a notable inventor based in Xiangtan, China. He has made significant contributions to the field of core drilling technology. His innovative approach has led to the development of a unique assembly that enhances drilling efficiency and effectiveness.

Latest Patents

Xiangyang Dong holds a patent for a "Forward and reverse circulation assembly for core drilling tools and coring operation method utilizing the same." This invention provides a forward and reverse circulation assembly that includes an outer tube body and an inner receiving body. The design defines a downward drilling fluid channel between the two components. The assembly features at least one longitudinal fluid acceleration groove on the outer peripheral wall of the inner receiving body. During operation, the drilling fluid is rapidly accelerated as it flows through the acceleration groove, creating a stable negative pressure zone downstream. This negative pressure zone is formed by a reverse circulation channel, which draws fluid and rock cores upwards from a rock core inlet, thereby establishing a protective local reverse circulation. Meanwhile, a mainstream drilling fluid that does not participate in the reverse circulation continues to flow downwards, forming a forward circulation for chip removal and cooling. This innovative design enhances the overall efficiency of core drilling operations.

Career Highlights

Xiangyang Dong is affiliated with Hunan University of Science and Technology, where he contributes to research and development in engineering and technology. His work focuses on improving drilling techniques and tools, which are essential for various geological and industrial applications.

Collaborations

Due to space constraints, the details of collaborations will not be included.

Conclusion

Xiangyang Dong's contributions to core drilling technology through his innovative patent demonstrate his expertise and commitment to advancing engineering solutions. His work continues to influence the field and improve drilling operations globally.