Last year, 2020 National Science and Technology Awards Conference was grandly held in the Great Hall of the People. China University of Petroleum (East China) won 4 awards, including two National Award for Technological Invention as the first completion unit and two National Award for Science and Technology Progress as the second completion unit. As project leaders, Prof. Sun Baojiang from School of Petroleum Engineering and Prof. Tian Yuanyu from School of Chemical Engineering, attended the conference in the Great Hall of the People.
The two projects led by UPC were "Key Technology and Equipment for Well Control in Offshore Deepwater Drilling " completed by Prof. Sun Baojiang and “Fast pyrolysis of typical agroforestry wastes to create humic acid environmental materials and their applications” completed by Prof. Tian Yuanyu.
Prof. Sun Baojiang
The project "Key Technology and Equipment for Well Control in Offshore Deepwater Drilling" is led by Prof. Sun Baojiang (the first awardee), with the participation of researchers from CNOOC Research Institute Co and other institutions. The project is supported by the national "863" program, the National Science and Technology Major Project, the National Natural Science Foundation of China and other projects. The project targets on the world class challenge of frequent well control accidents in deepwater drilling caused by narrow drilling pressure window. Based on the concept of proactive well control, a new active well control method of "accurate calculation of wellbore pressure - early identification of gas kick at the wellbore bottom - immediate handling of blowout risk" was proposed. A theoretical model of the "supercritical-gas-liquid-solid (hydrate)" multiphase flow in deepwater drilling well control was created, and a method of real-time prediction of wellbore pressure was developed. Method and equipment for early monitoring of gas kick with multi-source information fusion was developed. The invention of "dynamic pressure drilling" well control technology and equipment, which can automatically control the wellbore annular pressure, has realized the "detection on kick" of formation high-pressure fluid, avoiding the problem of overflow and blowout caused by large amount of gas rising above the subsea blowout preventer. This has helped to win precious time for well killing. The project realizes "killing while drilling", with no need to shut down the well to handle gas kick, saving time and reducing the risk of blowout. It has been applied in many deepwater oil and gas fields in China and overseas, realizing the safety and efficiency of offshore deepwater drilling and receiving significant economic and social benefits.
Prof. Tian Yuanyu
The project of “Fast pyrolysis of typical agroforestry wastes to create humic acid environmental materials and their applications” was led by Prof. Yuanyu Tian (the first completer), Prof. Yingyun Qiao (the second completer), Prof. Chaohe Yang (the fourth completer) and other professors jointly completed the project . The project targets two major world problems: the annual output of about 1.35 billion tons of agroforestry wastes lacks large-scale and high-value utilization technologies in China, and the lack of green restoration materials for up to 5.5 billion mu of degraded soil. Team pioneers a new process of fast pyrolysis of self-mixed downer circulating beds of agroforestry wastes to produce humic acid. Thermal carrier fractionation, a new method of liquid ash control by recycling, and downer circulating bed with self-mixing downer bed-pulse riser fast pyrolysis equipment and supporting proprietary equipment were invented. The world's largest 200,000-ton annual biomass fast pyrolysis plant has been built. This project is the first in the world to realize the industrialization of high-purity and high-activity biological humic acid from agroforestry wastes, and leads the development of biomass pyrolysis technology. In response to the remediation needs of complex systems of different polluted and degraded soils, biological humic acid is used to create a series of high-value targeted humic acid environmental materials through controllable cross-linking polymerization, which is the first time in the world to achieve sustainable remediation of polluted and degraded soils. At present, a series of targeted humic acid environmental materials have been demonstrated and promoted in more than 20 provinces and cities, with significant social and environmental benefits. China University of Petroleum (East China) became the first university to sign a strategic cooperation agreement with the “National Pure Land Action” of the Cultivated Land Protection Center of the Ministry of Agriculture and Rural Affairs. It provides a powerful technological support to promote the efficient and high-value utilization of biomass large-scale cleaning and soil green remediation, and makes a major contribution to our ecological civilization and the construction of beautiful villages.
