世界核地质科学2024，Vol.41Issue(4)：745-755,11.DOI:10.3969/j.issn.1672-0636.2024.04.010
世界典型高温地热田回灌经验及对谷露热田回灌井部署的启示
Reinjection experience of world high-temperature geothermal field and the deployment of reinjection wells in Gulu geothermal field
张松 1唐伟军 1郑冉 2郝伟林 1胡先才 1万汉平 1胡志华 1高洪雷 1张健 1吴儒杰1
作者信息
- 1. 核工业北京地质研究院,北京 100029||中核集团地热勘查技术研究中心,北京 100029
- 2. 西藏自治区土地矿权交易和资源储量评审中心,西藏 拉萨 850011
- 折叠
摘要
Abstract
Reinjection is an essential part of geothermal exploration.This article reviewed the reinjection strategies of different high-temperature geothermal fields in the world and found that different types of geothermal fields had different reinjection strategies:two-phase geothermal system(vapour-dominated)usually adopts infield reinjection;two-phase geothermal system(liquid-dominated)and hot water systems take both infield and outfield reinjection.The reinjection situations of Brady Hot Spring and Beowawe geothermal fields in the United States,Yangyi geothermal field in China,which are similar to the Gulu geothermal field,were systematically analyzed.The reinjection distance,depth,and the impact on the geothermal field by reinjection were discussed.The above geothermal fields mostly adopt the same-structure reinjection method;no specific reinjection distance is used in all the fields,a combination of infield and outfield reinjection is often used;the reinjection target usually selects a fault with good permeability;the reinjection depth is mainly greater than 500 m.During the reinjection process,it is necessary to balance the relationship between the pressure drop in the production area and the thermal breakthrough.Considering the geological situation of the Gulu geothermal field,it is suggested that the Gulu geothermal field should adopt the same-structure for the reinjection and a combination method of infield and outfield deep reinjection.Three reinjection sectors areas more than 1 km away from the production area of the geothermal field were selected.Among them,Reinjection Area 1 is the main reinjection area,which is about 1 to 1.5 km to the north of the production area.关键词
西藏/高温地热田/回灌经验/谷露地热田/回灌井Key words
Xizang/high-temperature geothermal field/reinjection experience/Gulu geothermal field/reinjection well分类
天文与地球科学引用本文复制引用
张松,唐伟军,郑冉,郝伟林,胡先才,万汉平,胡志华,高洪雷,张健,吴儒杰..世界典型高温地热田回灌经验及对谷露热田回灌井部署的启示[J].世界核地质科学,2024,41(4):745-755,11.
