吃碳吐油 变“废”为宝探访我国首个实现年注碳百万吨的油田

Core Viewpoint - The Xinjiang Oilfield has achieved a significant milestone by injecting over 1 million tons of carbon dioxide (CO2) annually by 2025, marking it as China's first oilfield to reach this target, which plays a crucial role in the country's carbon neutrality goals [8][16]. Group 1: CO2 Injection Technology - The CO2 injection method enhances oil recovery by increasing pressure and reducing viscosity, allowing for the extraction of oil that traditional methods cannot reach [9][10]. - Compared to water injection, CO2 injection can improve oil recovery rates by 10% to 20%, achieving total recovery rates of 40% to 60% [10]. - The Xinjiang Oilfield has been utilizing CO2 for enhanced oil recovery since 2019, with successful pilot projects demonstrating significant increases in oil production [12][14]. Group 2: Carbon Capture, Utilization, and Storage (CCUS) - CCUS technology is essential for achieving carbon neutrality, with Xinjiang Oilfield being a pioneer in its application for oil recovery [11][12]. - The CO2 used for injection is sourced from industrial emissions in the surrounding areas, ensuring a sustainable supply for the oilfield [15]. - Approximately 80% of the injected CO2 is permanently stored underground, while the remaining 20% is recycled for further use [15][16]. Group 3: Environmental Impact and Future Prospects - The ongoing CCUS projects in Xinjiang Oilfield are expected to significantly contribute to carbon reduction efforts, with current injection rates reaching over 4,800 tons per day [16]. - The technology not only aids in oil recovery but also provides a pathway for the utilization of industrial CO2 emissions, aligning with national carbon reduction strategies [18][19]. - The successful implementation of CCUS in Xinjiang Oilfield serves as a model for other regions and industries, showcasing the potential for green transformation in the energy sector [19][20].