Liangliang Ding

Title: Innovations by Liangliang Ding

Introduction

Liangliang Ding is a notable inventor based in Sichuan, China. He has made significant contributions to the field of engineering, particularly in the development of advanced shock absorbers and isolation valves. With a total of 2 patents to his name, his work reflects a commitment to innovation and practical applications in well testing technologies.

Latest Patents

One of Liangliang Ding's latest patents is the "Active energy-absorbing shock absorber for perforation combined well testing." This invention features a first energy-absorbing mechanism, a second energy-absorbing mechanism, and an axial-force cushioning mechanism. The first mechanism includes a gun body, a gun head, a gun tail joint, a support frame, an energy-absorbing filling layer, and a detonation mechanism. The second mechanism consists of an intermediate connecting cylinder, an outer cylinder, a limiting step, a movable impact head, a support base, a hydraulic buffer mechanism, a piston rod, an energy-absorbing spring, and an inner cavity piston. The axial-force cushioning mechanism is composed of a housing, a guide mechanism, a buffer shaft, and a multi-stage buffer spring. This absorber is constructed with a multi-layer structure filled with a 7 aluminum material.

Another significant patent is the "Reservoir isolation valve for secondary completion." This invention includes a shell assembly, a sleeve assembly arranged within the shell assembly, and a reset spring positioned between the two assemblies. It also features a movable tube, an inner limit tube, an outer limit tube, an outer bearing socket, an inner bearing socket, a thrust bearing, and a ball valve located in the sleeve assembly. The design incorporates a stepped shaft fixed on the ball valve and a transmission mechanism that connects the movable tube to the stepped shaft, allowing for rotation and operation.

Career Highlights

Liangliang Ding is affiliated with Southwest Petroleum University, where he contributes to research and development in petroleum engineering. His work is instrumental in advancing technologies that enhance the efficiency and safety of well testing processes.

Collaborations

Liangliang Ding collaborates with esteemed colleagues such as Hongtao Liu and Wenkang Chen. Their combined expertise fosters an environment of innovation and progress in their respective fields.

Conclusion

Liangliang Ding's contributions to engineering through his patents