2011 年以来,国家及青海省政府在青海省海南藏族自治州共和县恰卜恰镇地区相继开展了一批地热资源勘察工作,发现共和盆地基底由印支期花岗岩组成,岩体地温梯度异常明显,最高可达11.5℃/100 m,2200 m 左右温度达到150℃,3000 m 岩体温度接近200℃,预计4000 m 时温度可达260℃以上,表明盆地具有分布广泛、埋深相对浅的干热岩资源。利用此干热岩资源,不仅填补中国新能源利用的一项空白,而且对当地人居条件改善、工农业发展具有现实意义。
The national and local governments have carried out a series of explorations of geothermal resources in the Chapcha (Qia-bu-qia) region, Gonghe County, Hainan Tibetan Autonomous Prefecture in Qinghai Province since 2011. It has been discovered that Gonghe Basin substrate is composed of the indosinian granite with a significantly high geothermal gradient up to 11.5℃/100 m. The temperature reached 150℃ at the level of 2200 m and was close to 200℃ at 3000 m and was estimated to be 260℃ at 4000 m, indicating that the basin has widely distributed hot dry rock in relatively shallow depth. Utilization of such hot dry rock resources will not only fill up the gap in China's new energy utilization, but also improve local residents'living conditions as well as develop local industry and agriculture.
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