5200 Meters! My Country's Deepest Geothermal Exploration Well Completed

The Fushenre 1 well deployed by Sinopec in Hainan was successfully drilled with a depth of 5,200 meters, setting a new record for the deepest geothermal scientific exploration well in my country. The successful drilling of this well revealed the formation and enrichment mechanism of deep geothermal in South China, which means that my country has made new breakthroughs in hot dry rock exploration in terms of region and depth. It will help improve the large-scale development and utilization of geothermal resources in South China and help adjust the regional energy structure. of great significance.

Well Fushenre 1 is a key geothermal exploration well deployed by Sinopec Petroleum Exploration and Development Research Institute. The drilling target is granite 250 million years ago. It is a deep dry hot rock geothermal well. Since drilling started in August 2023, the well has applied a number of innovative technologies independently developed by Sinopec such as "dual-drive drilling + high-pressure injection". The temperature at nearly 3,900 meters exceeded 150°C, reaching high-temperature geothermal standards. At a temperature of 5,000 meters It exceeds 180°C and reaches the hot dry rock temperature limit stipulated in the national energy industry standards. It has formed a key technology for deep geothermal resource detection and evaluation and achieved the expected goals and mission requirements of scientific exploration wells.

In the next step, Sinopec will carry out in-depth research and field tests based on Well Fushenre 1, build the first deep geothermal production-university-research integrated field test research platform and development and utilization demonstration platform in South China, and explore and form theoretical methods and methods suitable for South China. The technological system helps my country achieve its "double carbon" goal.

The development and utilization of geothermal resources in my country is mostly based on shallow and medium-deep hydrothermal geothermal resources. However, the development of deep geothermal resources below 3,000 meters, especially hot dry rock resources, is still in the exploratory stage. Hot dry rock generally refers to high-temperature rock buried thousands of meters underground with a temperature greater than 180°C and containing no or only a small amount of fluid inside. According to the China Geological Survey, the amount of hot dry rock geothermal resources within 3 kilometers to 10,000 meters underground in my country's land areas is equivalent to 856 trillion tons of standard coal. Even if only 2% is extracted, it can reach my country's annual production in 2023. 2993 times the energy consumption.

At present, Sinopec continues to delve into the field of geothermal energy and has become the largest geothermal energy development and utilization enterprise in China. In terms of exploring the large-scale development of geothermal energy, Sinopec has built a geothermal heating capacity of nearly 100 million square meters and built multiple regional geothermal heating projects with a scale of millions of square meters. Among them, the geothermal heating project constructed in Xiongan New Area has been recognized by the international community. The Renewable Energy Agency is included in the list of global promotion projects; in terms of promoting scientific and technological progress in the geothermal industry, it has innovatively formed two basic theories of geothermal system formation mechanism and thermal storage and heat transfer mechanism, and has conquered a number of engineering technologies such as "producing heat without consuming water". Key core technologies; in terms of serving the development of the country's geothermal industry, Sinopec also took the lead in compiling more than 50% of industry standards and my country's first International Geothermal Association standard in the global geothermal field, and successfully held the 2023 World Geothermal Congress.