山东国土资源2023，Vol.39Issue(12)：28-32,5.DOI:10.12128/j.issn.1672-6979.2023.12.005
山东省德州市德城区地热采灌工程合理井距与热突破时间推算
Calculation of Reasonable Well Spacing and Thermal Breakthrough Time for Geothermal Extraction and Irrigation Engineering in Decheng District in Dezhou City in Shandong Province
摘要
Abstract
Dezhou city in Shandong province has a long history of sandstone thermal storage development and a large number of heating projects.However,affected by the area and layout of the community,the distance between the production and irrigation wells varies.If the distance between the production and irri-gation wells is too close,it is bound to accelerate the occurrence of thermal breakthrough.In order to guide the construction of geothermal engineering in the area,by using the formula for reasonable well spacing in the"Technical Specification for Geothermal Tailwater Reinjection of Sandstone Thermal Stor-age"(DZ/T0330-2019),the empirical formula of reasonable well spacing in Decheng District is derived by substituting the geothermal geological parameters in the area.It is showed that the reasonable well spacing will increases accompanying with the increase of mining output of geothermal engineering.When the mining output is 60m3/h,the reasonable well spacing should not be less than 181m.According to the calculation,among the 51 groups of production and irrigation wells in Decheng district,21 groups of pro-duction and irrigation wells will have thermal breakthrough,and 8 groups of production and irrigation wells will have thermal breakthrough less than 10 years,and account for 19.6％.In order to ensure the sustainable operation of the mining and irrigation project,the mining and irrigation wells should be rear-ranged in a timely manner.关键词
砂岩热储/合理井距/热突破/采灌工程/德州市德城区/山东省Key words
Sandstone thermal storage/rational well spacing/thermal breakthrough/mining and irrigation engineering/Decheng district in Dezhou city/Shandong Province分类
天文与地球科学引用本文复制引用
王明珠,沙福建,冯克印,夏影,沈芳,郝俊杰..山东省德州市德城区地热采灌工程合理井距与热突破时间推算[J].山东国土资源,2023,39(12):28-32,5.基金项目
山东省自然资源厅"鲁西北砂岩热储地热开采区重大地质环境问题调查与评价"(鲁勘字[2020]10号)、山东省地质矿产勘查开发局"鲁西北坳陷区深层砂岩地下热水循环模式与开发模式研究"(鲁地字[2022]15号)项目资助 （鲁勘字[2020]10号）
