Company Filing History:
10 out of 25 
2 out of 147 
1 out of 1 Years Active: 2021-2025
Title: Yuhuan Bu: Innovator in Well Cementation Technologies
Introduction
Yuhuan Bu is a prominent inventor based in Qingdao, China, known for his significant contributions to the field of well cementation technologies. With a total of 10 patents to his name, he has developed innovative solutions that enhance the efficiency and safety of oil and gas exploitation.
Latest Patents
Among his latest patents is a sealing gel with delayed gelation for well cementation. This invention includes a specific formulation comprising 2-3 parts of anionic polyacrylamide, 3-4 parts of cationic acrylamide, 1 part of stabilizer, 1 part of cross-linking agent, and 6 parts of distilled water. The stabilizer is created through a reaction involving citric acid and ethylenediaminetetraacetic acid disodium, while the cross-linking agent is derived from chromium lactate and chromium nicotinate. This sealing gel is designed to be pH sensitive, allowing for prolonged gelation time, which is crucial for effective well cementation.
Another notable patent is the anti-corrosion and low-heat-conduction annulus protection fluid for deep-sea oil and gas exploitation. This fluid consists of a polymer solution, clear water, a thermally-insulating material, a corrosion inhibitor, and xanthan gum. The formulation ensures excellent thermal insulation performance and corrosion resistance, preventing the formation of hydrates at the wellhead.
Career Highlights
Yuhuan Bu has worked with esteemed institutions such as China University of Petroleum and Qingdao University of Technology. His work in these organizations has significantly contributed to advancements in petroleum engineering and well cementation technologies.
Collaborations
He has collaborated with notable colleagues, including Huajie Liu and Shenglai Guo, to further enhance the research and development of innovative solutions in his field.
Conclusion
Yuhuan Bu's innovative patents and contributions to well cementation technologies demonstrate his commitment to advancing the oil and gas industry. His work continues to influence the development of safer and more efficient methods for resource extraction.