大安市第二水源地地下水开采降落漏斗预测

Prediction of drawdown cone of groundwate extraction in Da’an City the second water sources

本文采用非稳定流大井法对以"多层叠置含水结构"供水含水层的大安第二水源进行地下水开采下降漏斗不同规化开采量不同开采时间的水位降及漏斗扩展预测和评价。提出防范下降漏斗不可恢复、井间不合理干扰及油田开采对水源地下水环境不良影响措施。为地下水资源持续利用、采补平衡、"资源"与"环境"协调发展奠定基础,拓宽合理开发利用途径。

Using the unsteady flow large diameter well method,predicted and evaluated on drawdown cone of groundwater extraction,which with different planned yield and different recovery time,of Da’an the second water source that was multiple layers superposed water-bearing structure.Put forward preventive measures for depression cone irreversible,unreasonable interference between wells,and adverse impact on groundwater environment of oil exploitation.Lay the foundation for the sustainable utilization of groundwater resources,balance between exploitation and supply resources and environment coordinated development,and broaden the rational development and utilization.