东营钻出162℃“能源锅炉” 巨量地热如何变现？

Core Viewpoint - The "Donggao Hot 1" well breaks the traditional pattern of geothermal resources in China, which is characterized by "strong in the west, weak in the east," and provides a new path for energy diversification in Dongying, while also serving as a practical example for alleviating structural energy contradictions at the national level [1][3]. Geothermal Resource Development - The "Donggao Hot 1" well, located in Dongying, Shandong Province, reaches a depth of 4002.17 meters with a bottom temperature of 162℃ and a wellhead water temperature of 138℃, producing a flow rate of 101.3 cubic meters per hour [2][3]. - The well's breakthrough is based on a geological survey covering approximately 4000 square kilometers and introduces a new theory of "sedimentary basin potential mountain hydrothermal type" for high-temperature geothermal formation [5][6]. Technical Innovations - To address the "hot but no flow" issue, the Shandong Geological and Mineral Exploration Bureau developed a "high-temperature acid fracturing technology" that enhances the flow capacity of geothermal reservoirs by 12 times and increases wellhead temperature by 18℃ [6]. - The principle of "balanced extraction and reinjection, taking heat without depleting water" is emphasized to ensure sustainable geothermal resource development [7][8]. Economic Benefits - The use of geothermal heating in agricultural settings, such as the Shandong Shuangfu Flower Company, has significantly reduced heating costs from 40 yuan per square meter to 15 yuan per square meter, saving approximately 5 million yuan annually [10][11]. - The "Donggao Hot 1" well is estimated to release 679,000 GJ of heat annually, equivalent to about 27,000 tons of standard coal, with potential applications in electricity generation and industrial steam production, contributing to a projected annual economic benefit of around 450 million yuan [12][13]. Future Potential - The geological conditions in regions like Dezhou and Binzhou in Shandong are believed to have similar potential for discovering deep high-temperature geothermal resources, which could further activate the geothermal economy on a larger scale [13].