| Abstract |
The direct utilization of geothermal energy in China has long been first in the world, which is closely related to China’s population and the characteristics of geothermal resources. For a long time, hot springs and direct heat exchange has been the main geothermal development and utilization in China. In the past 5 years, shallow ground source heat pumps and water source heat pumps have developed rapidly, while the development and utilization of middle-deep geothermal resources is slow. Petroliferous basins are the most abundant with low-and-medium temperature geothermal resources in China; petroleum enterprises have inherent advantages in development and utilization. In 2006, Sinopec set up the Sinopec Star Co. Ltd and Green Energy Company to develop and utilize middle-deep geothermal resources. In 2018, China National Petroleum Corporation (CNPC) also set up Baoshihua Geothermal Energy Development Company to carry out projects in several areas of Henan and Hebei provinces in China. The re-injection in sandstone reservoirs has been successfully realized, the balance of mining and re-injection has been achieved, and the middle-deep geothermal resources have been scientifically and effectively utilized. After nearly 60 years of development, China's petroleum industry has accumulated a vast amount of data in geophysical prospecting, drilling, logging, and geochemistry, and mastered the layout information of underground geothermal resources. China also has industrial advantages in drilling, development, thermal water transportation, water quality treatment, ground facilities and land resources. The entry of petroleum enterprises into the geothermal field will boost the healthy development of geothermal industry in China. |