鲁北地区砂岩热储地热尾水回灌地温场变化特征分析
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本文为山东省地质科研项目(鲁地字\[2019\]34号文,编号KY201944)、山东省鲁北地质工程勘察院科研项目(砂岩热储地热尾水回灌对地温场影响分析研究)联合资助的成果。


Change characteristics of geothermal field for geothermal return water reinjection of sandstone reservoir in the northern Shangdong
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  • LIU Zhitao

    LIU Zhitao

    1) The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources(Lubei Geoengineering Exploration Institute), Dezhou, Shandong, 253072;2) Shandong Provincial Research Center of Geothermal Resources and Reinjection, Dezhou, Shandong, 253072
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  • LIU Shuai

    LIU Shuai

    1) The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources(Lubei Geoengineering Exploration Institute), Dezhou, Shandong, 253072;2) Shandong Provincial Research Center of Geothermal Resources and Reinjection, Dezhou, Shandong, 253072
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  • SONG Weihua

    SONG Weihua

    1) The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources(Lubei Geoengineering Exploration Institute), Dezhou, Shandong, 253072;2) Shandong Provincial Research Center of Geothermal Resources and Reinjection, Dezhou, Shandong, 253072
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  • YANG Xunchang

    YANG Xunchang

    1) The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources(Lubei Geoengineering Exploration Institute), Dezhou, Shandong, 253072;2) Shandong Provincial Research Center of Geothermal Resources and Reinjection, Dezhou, Shandong, 253072
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  • ZHOU Qundao

    ZHOU Qundao

    1) The Second Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources(Lubei Geoengineering Exploration Institute), Dezhou, Shandong, 253072;2) Shandong Provincial Research Center of Geothermal Resources and Reinjection, Dezhou, Shandong, 253072
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    摘要:

    本文通过对德州水文家园砂岩热储地热回灌井全井段温度监测,在深度上分为5个区段论述了地温场的变化特征,重点对热储温度恢复的热量来源进行了分析。研究结果表明,在规模化生产性回灌时,低温地热尾水回灌会使得回灌井周边热储温度明显降低,并且恢复速率特别缓慢;通过定性分析和定量计算,认为大地传导热流和顶部地层传导热流在热储温度恢复中的作用极其微弱,而外围同层相对高温地层传导的热量和地热水流动带来的热量是其温度恢复的主要热量来源。基于该研究结果,在规模化回灌条件下,发生热突破是必然的,因此深入开展回灌工程采灌井合理井距研究、防止短时间内发生热突破是非常有必要的。

    Abstract:

    Through the temperature measurement of the geothermal reinjection well in the Dezhou Shuiwen residential area, the paper dicussed the variation characteristics of geothermal field in five sections in depth, and especially analyzed the heat recovery source of sandstone reservoir. The results show that during largescale productive reinjection, low temperature return water will significantly reduce the sandstone reservoir temperature around the reinjection well, and the recovery rate is particularly slow. Qualitative analysis and quantitative calculation show that the role of the geothermal heat flow and the top formation heat conduction is extremely weak in the heat recovery source of the reservoir, while the main source is the peripheral highertemperature formation in the same layer and heat carried by the flow of the geothermal water. Based on the results of this study, under the conditions of largescale reinjection, thermal breakthrough is inevitable. Therefore, it is very necessary to carry out research on reasonable distance between production and reinjection wells, in order to prevent thermal breakthrough in a short time.

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引用本文

刘志涛,刘帅,宋伟华,杨询昌,周群道.2019.鲁北地区砂岩热储地热尾水回灌地温场变化特征分析[J].地质学报,93(s1):149-157.
LIU Zhitao, LIU Shuai, SONG Weihua, YANG Xunchang, ZHOU Qundao.2019. Change characteristics of geothermal field for geothermal return water reinjection of sandstone reservoir in the northern Shangdong[J]. Acta Geologica Sinica,93(s1):149-157.

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  • 在线发布日期: 2019-10-09