【Ten Years of Rapid Development in Chemical Engineering Equipment】From 2022 to 2026, breakthroughs were achieved in China’s first offshore membrane carbon removal demonstration project: the associated gas recovery and carbon removal sowie carbon dioxide sequestration project at the Huizhou 32-5 platform

Thread Content

Let’s give praise and encouragement to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Progress in Chemical Engineering Equipment】Continuous updates and summaries are available; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** On January 15th, it was reported from the Shenzhen branch that China’s first offshore membrane carbon removal demonstration project – the Huizhou 32-5 platform’s associated gas recovery, carbon removal, and carbon dioxide sequestration project – has managed to recover over 20 million cubic meters of associated gas to date, enabling efficient carbon removal, recovery, and reuse of this gas. The Huizhou 32-5 platform is one of the high-output crude oil platforms in the eastern South China Sea oil field. To advance the green and low-carbon transformation, the Eastern South China Sea Oilfield has used this platform as a pilot to innovatively develop a technical system for the efficient capture, reinjection, and sequestration of carbon dioxide. The process flow of the project mainly includes three stages: raw gas pretreatment, membrane separation for carbon removal, and post-membrane treatment and recovery. In particular, the membrane separation decarburization step makes use of a membrane decarburization unit independently developed by CNOOC. This device occupies little space and has low energy consumption, making it highly suitable for offshore platform environments. During the post-membrane treatment and recovery phase, the project innovatively employs the same well for injection and production, enabling the compression and safe reinjection of carbon dioxide without affecting crude oil extraction. This approach addresses the issue of limited wellbore resources on offshore platforms, providing a replicable and scalable new method for carbon sequestration in offshore oil fields. Since the project was put into operation, Huixi Operations Company of Shenzhen Company has established a regular inspection mechanism to systematically identify potential issues with the equipment. By leveraging digital tools, it monitors the operational status of the equipment in all aspects, records equipment conditions and fault information in real time, and has created a database of equipment problems along with a closed-loop tracking and handling process. To date, the project team has effectively addressed common equipment issues such as abnormal fluctuations in level gauge readings and unusual noises from the compressors, as well as systematic problems like poor drainage from control valves and unstable gas flow rates. This has ensured the safe and stable operation of the project’s core equipment for over 8,900 hours.