| 李鹏涛,赵艳婷,张德森,牛伟达,张森,杨宝美.地表水回灌对碳酸盐岩热储的影响分析——基于 COMSOL数值模拟[J].矿产勘查,2025,16(3):598-605 |
| 地表水回灌对碳酸盐岩热储的影响分析——基于 COMSOL数值模拟 |
| Analysis of the impact of surface water reinjection on carbonate thermal reservoirs: Based on COMSOL numerical simulation |
| 投稿时间：2024-06-12 |
| DOI：10.20008/j.kckc.202503017 |
| 中文关键词: 东丽湖地区 雾迷山组热储 地表水回灌 数值模拟 |
| 英文关键词: Donglihu area reservoir of the Wumishan Formation surface water reinjection numerical simulation |
| 基金项目:本文受天津市规划和自然资源局(原天津市国土资源和房屋管理局)项目(国土房任[2014]25号)资助。 |
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| 中文摘要: |
| 地热资源粗放式开发易引起水位下降，回灌是缓解水位下降的有效措施之一。天津市东丽湖地区碳酸盐岩热储回灌效果好，利用地表水回灌对热储层进行额外补充是可行的方案。本文聚焦地表水长期回灌对储层的影响，利用 COMSOL建立了潘庄凸起构造区渗流数值模型，并对地表水回灌条件下东丽湖地区雾迷山组碳酸盐岩热储未来 50年的温度场、压力场进行了预测。结果表明:DLB-01、DLB-02和 DLB-03井持续地表水回灌 50 a后，不会对周边开采井产生热突破，但 DL-71井温度接近设定的热突破界限，因此需留意对附近开采井的水温监测；地表水回灌对周边热储水位提升明显，DL-71井在地表水回灌 50 a后，水位上升并稳定在 153.5 m左右。 |
| 英文摘要: |
| The extensive development of geothermal resources is prone to cause the water level to drop. Rein-jection is one of the effective measures to alleviate the drop in water level. The reinjection effect of carbonate rockthermal reservoirs in the Dongli Lake area of Tianjin is good. It is a feasible solution to supplement the thermal res-ervoirs by reinjection of surface water. This paper focuses on the influence of long-term surface water reinjection onthe reservoir. A seepage numerical model of the Panzhuang Uplift tectonic area is established using COMSOL, and the temperature field and pressure field of the carbonate rock thermal reservoir of the Wumishan Formation in theDongli Lake area under surface water reinjection conditions in the next 50 years are predicted. The results show thatafter 50 years of continuous surface water recharge in Wells DLB-01, DLB-02 and DLB-03, there will be no ther-mal breakthrough to the surrounding mining Wells. However, the temperature of well DL-71 is close to the set ther-mal breakthrough limit. Therefore, attention should be paid to the water temperature monitoring of the nearby min-ing Wells. Surface water reinjection significantly raised the surrounding thermal storage water level. After 50 yearsof surface water reinjection in Well DL-71, the water level rose and stabilized at about 153.5 meters. |
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