The first pilot project of the province's first carbon dioxide geological seal deposit land was launched in Taizhou

Recently, the Provincial Department of Natural Resources organized experts to review the "Research and Demonstration Design Book of CO_2 Key Technology Storage Key Technology Storage CO_2 of Taizhou", and the design was rated as an excellent level. This means that the province's first pilot project of carbon dioxide geological seal depository land was officially launched in Taizhou.

The "integration of carbon dioxide geological sealing and minerals" belongs to the new type of carbon emission reduction and utilization. It can not only seal the carbon dioxide underground, but also use this unique medium to "rush out" the oil buried underground and get two birds with one stone.

In September last year, the China Geological Survey Bureau of the Ministry of Natural Resources signed a cooperation agreement with the Jiangsu Provincial Government, which clearly stated that Jiangsu must focus on promoting the related work of geological carbon exchange and sealing technology and engineering demonstration construction. In this context, Taizhou actively declare and deploy major scientific research projects for the "dual carbon" goals, explore the potential and key technologies of geological storage in advance, and verify the feasibility of geological storage with a composite demonstration project construction, and for the development of the "carbon storage" industry in the future And gradually constructing the "Taizhou model" proven direction that collects capture, transportation, oil -removing, and sealed the entire industrial chain.

Wang Wei, director of the Geological Resources and Mining Department of the Taizhou Natural Resources and Planning Bureau, who participated in the project design, in recent years, geological sealing and underground utilization are the key breakthroughs of carbon dioxide emission reduction, of which carbon dioxide oil drive technology has received more and more attention.

Carbon dioxide oil -driven technology is to inject carbon dioxide into the oil layer to increase the oil collection rate. Because carbon dioxide is a gas with high dissolving degree in oil and water. When it is dissolved in a large amount of crude oil, it can reduce the volume of crude oil and decrease in viscosity, and reduce the interface tension between oil and water. It is reported that the Jilin Oilfield and Shengli Oilfields in my country have launched carbon dioxide sealing and oil -repellent projects, and crude oil harvesting has increased by more than 10%.

There are a large amount of oil resources in the underground distribution of Taizhou. At present, there are 9 oil fields and a total of 28 development units. At the same time, about 350 million tons of shale oil have been initially implemented. Shale oil is an unconventional oil resource stored in the small pores of the shale layer. It is difficult to minimize. In particular, it is necessary to use fracture and carbon dioxide oil repellent technology. If the carbon dioxide is used to drive oil, it can not only achieve carbon emission reduction, but also produce economic benefits and promote sustainable green development.

It is reported that the project was jointly implemented by the Jiangsu Provincial Department of Natural Resources and the Taizhou Natural Resources and Planning Bureau. The company's Taizhou oil collection plant participated in the completion.

Gong Xulong, a senior engineer of the Jiangsu Provincial Institute of Geological Survey, introduced that the pilot project of the integration project of carbon dioxide geological sealing and minerals in Taizhou lasted for two years. Carry out the appropriate evaluation of carbon dioxide geological storage in Taizhou, build numerical models, and establish a platform platform for carbon dioxide geological storage space data center in Taizhou.

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