| 孤岛油田馆陶组热储地热资源开发利用分析 |
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| 作者姓名： | 秦耀军 啜云香 赵季初 |
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| 作者单位： | 山东省地质矿产勘查开发局第二水文地质工程地质大队,德州 253072 |
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| 摘 要： | 孤岛油田蕴藏丰富的中、低温地热资源,对其进行合理的开发利用,对推进该区新、旧热能转换,促进地方经济发展具有重要意义。在总结以往勘探成果的基础上,查明了孤岛油田为大地热流高值异常区,平均值为72.62 mW/m2。重点研究馆陶组热储地热地质条件,查明了馆陶组下段热储厚度为106~145 m,平均孔隙度约为30%,热储温度为75.5~82 ℃,单位降深涌水量为3.71~10.55 m3/(h·m),是地热资源开发的有利目标热储。采用热储法估算区内馆陶组下段热储中蕴藏的地热资源量为3.745×1018 J,折合标准煤量1.28亿t,地热水储存量约为60.87×108 m3; 采用开采强度法估算的该区地热水允许开采量约为253万m3/a,可支持供暖面积约100万m2。
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| 关 键 词： | 孤岛油田 地热资源 热储 允许开采量 大地热流 馆陶组 |
| 收稿时间： | 2017-08-29 |
Analysis on exploitation and utilization of geothermal resources of Guantao Formation geothermal reservoir in Gudao oilfield |
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| Authors: | QIN Yaojun CHUAI Yunxiang ZHAO Jichu |
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| Institution: | No.2 Hydrogeology and Engineering Geology Brigade, Shandong Provincial Bureau of Geology and Mineral Resources, Dezhou 253072, China |
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| Abstract: | Gudao oilfield is rich in medium and low temperature geothermal resources, and its rational exploitation and utilization is of great significance for the transformation from traditional fuels to new energy and for local economic development. On the basis of summarizing and analyzing previous exploration achievements, the authors found that Gudao oilfield was a high anomaly area of terrestrial heat flow, and that the average value of terrestrial heat flow was 72.62 mW/m2. The authors focused on the geothermal geological conditions of Guantao Formation geothermal reservoir. The results show that the geothermal reservoir thickness in the lower member of Guantao Formation is 106~145 m, and the average porosity is about 30%. The temperature of geothermal reservoir is 75.5~82 ℃ and the water inflow of drawdown per unit is 3.71~10.55 m3/(h·m). These features make the geothermal reservoir of the lower member of Guantao Formation the favorable development target. Using geothermal reservoir method, the authors calculated the geothermal resource quantity in the geothermal reservoir of the lower member of Guantao Formation, which was 3.745×1018 J and equivalent to 1.28×108 tons of standard coal. And the geothermal fluids storage capacity is about 60.87×108 m3. Using mining intensity method, the authors estimated the recoverable quantity of geothermal fluids, which was 253×104 m3/a and could support about 100 ×104 m2 heating area. |
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| Keywords: | Gudao oilfield geothermal resources geothermal reservoir recoverable quantity terrestrial heat flow Guantao Formation |
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