Phase transition and fluid backflow during the non-injection period in the Ordos CCS project, China

Effects of Injection Temperature and Pressure on CO2 Storage Capacity and Safety in a Sloping Formation

“…The Ordos Basin, with an area of 250,000 km 2 , is the second-largest sedimentary basin, ranking fourth for its petroleum reserves in China . The Shenhua Ordos CCS project, launched by the China Shenhua Coal Liquefaction Co. Ltd. (CSCLC), is the first onshore geologic CO 2 storage demonstration project in a deep saline aquifer and the largest demonstration project in China. , It is located in the northeast Ordos Basin (Figure ) and has been carefully evaluated. , The Ordos Basin is a cratonic basin, providing suitable combinations of reservoir and seal in the Triassic and Permian strata for CO 2 storage …”

“…54,55 The Ordos Basin is a cratonic basin, providing suitable combinations of reservoir and seal in the Triassic and Permian strata for CO 2 storage. 56 The injection interval of this project was between 1576 and 2453 m underground. Figure 1 shows the location of the Shenhua CO 2 storage project and the locations of the CO 2 injection and monitoring wells.…”

Recent progress and emerging strategies for carbon peak and carbon neutrality in China

“…85 The National Energy Group's Ordos CCS Demonstration Project has successfully carried out the full process demonstration of CCS on the scale of 100,000 tons/year. 86 The CNPC Jilin EOR project is the only Chinese project among the 21 large CCUS projects in operation worldwide, and the largest EOR project in Asia, with a cumulative CO 2 injection of more than 2 million tons. 87 The 150,000 tons/year CCUS demonstration project of National Energy Group Jinjie is currently the largest demonstration project of the full process of carbon dioxide capture and oil displacement storage after combustion of coal-fired power plants in China.…”

“…The National Energy Group's Ordos CCS Demonstration Project has successfully carried out the full process demonstration of CCS on the scale of 100,000 tons/year 86 . The CNPC Jilin EOR project is the only Chinese project among the 21 large CCUS projects in operation worldwide, and the largest EOR project in Asia, with a cumulative CO 2 injection of more than 2 million tons 87 .…”

“…More efforts should be taken to lower project costs and energy consumption levels, and encourage the development of CCUS industrial clusters 81 . To build a new CCUS technology system, CCU technologies breakthrough that can transform carbon on a large scale, such as how to accelerate catalytic reactions in mineralization technology and reduce the high cost of carbon supply in traditional microalgae culture processes, should be solved as soon as possible 86 …”