利津县陈庄地区干热岩地热资源存在可能性分析

Possibility Analysis on the Occurrence of Geothermal Resources in Hot Dry Rock in Chenzhuang Area of Lijin County

摘要:

干热岩温度一般大于150℃，埋深数千米，内部不存在流体或仅有少量地下流体的高温岩体。干热岩资源分布广泛，资源量巨大，干热岩的热能赋存于各种变质岩或结晶岩类岩体中，较常见的岩石有黑云母片麻岩、花岗岩、花岗闪长岩等。利津县已施工一眼干热岩勘探孔，资料表明，陈庄地区具有干热岩地热资源存在所需的大地构造、岩性及地温梯度，具备干热岩地热资源存在的可能性。

Abstract:

Temperature of hot dry rock is generally more than 150℃ with the depth of thousands of meters. There is no fluid, only a small amount of underground fluid with high temperature occurred in the rock. Hot dry rock resources are widely distributed with great reserve. Heat of hot dry rock occurred in metamorphic rocks or crystalline rocks. The common rocks are biotite gneiss, granite and granodiorite. A hot dry rock exploration hole has been constructed in Lijin county. As showed by data information, tectonic, lithologic and geothermal gradient which will show the occurrence of hot dry rock geothermal resources existed in Chenzhuang area. It has the possibility of the existence of hot dry rock geothermal resources.