黄河三角洲生态区孔隙热储地热开发对地面沉降的影响分析

黄河三角洲地区地热资源丰富,热储类型以孔隙热储为主,开采潜力巨大。同时黄河三角洲地区由于成岩差、土层新,地热开发引发的地面沉降问题逐渐引起人们的重视。研究表明:现状条件下,黄河三角洲地区地面沉降以地层(土体)自然固结与地面建筑物载荷有关,地热开发对地面沉降影响微小,南部的广饶地区过量开采地下水是引起地面沉降的主要原因。

Impact Analysis of Geothermal Development on Land Subsidence in the Yellow River Delta

Rich geothermal resources are hosted in the Yellow River Delta. The main type of thermal reservoir is pore heat storage. It has great potential for exploitation. At the same time, due to the poor formation and new soil layer in the Yellow River Delta, the problem of land subsidence caused by geothermal development has been paid more and more attention. The researches suggest that: The land subsidence in the Yellow River delta is related to the consolidation of the ground (soil) and the load of the building on the ground. And the development of geothermal resources has little effect on land subsidence. While the main cause of land subsidence is excessive exploitation of groundwater in the south of Guangrao.