Location History:
- Guang Han, CN (2022)
- Sichuan, CN (2024)
Company Filing History:
2 out of 7 
1 out of 79 
1 out of 1 Years Active: 2022-2024
Title: Innovations of Liexiang Han
Introduction
Liexiang Han is a notable inventor based in Guanghan, China. He has made significant contributions to the field of drilling technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and safety of drilling operations.
Latest Patents
One of his latest patents is a method for remotely shutting down a downhole unit of a rotary steering system from the ground. This innovative method includes several steps: calculating a pressure difference between the front end and rear end of the drill water hole, calculating an extension loss, determining the pressure at the riser after activating the downlink device, calculating the opening area of the throttle valve, and adjusting the throttle valve to the calculated opening degree. This method allows for self-protection and continuous operation of the rotary steering system, reducing the frequency of inspections and improving drilling efficiency while lowering costs.
Another significant patent is for dual-speed dual-core enhanced drilling equipment. This equipment features an outer cylinder, a downhole power device, a large cutting head, and a small cutting head. The large cutting head is designed with a first centerline and a through hole arranged along it. The downhole power device generates power and provides independent power for the small cutting head, allowing it to revolve around the first centerline while rotating under the driving of the downhole power device.
Career Highlights
Liexiang Han has worked with prominent companies in the industry, including CNPC Chuanqing Drilling Engineering Company Limited and China National Petroleum Corporation. His experience in these organizations has contributed to his expertise in drilling technologies.
Collaborations
He has collaborated with notable coworkers such as Lei Li and Jing Bai, further enhancing his innovative projects and contributions to the field.
Conclusion
Liexiang Han's inventions and patents reflect his commitment to advancing drilling technology. His innovative methods and equipment are set to improve efficiency and safety in the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.