Discusson on Drilling and Perforating Technologies for Geothermal Recirculation Well in Guantao Formation of Tianjin
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摘要: 天津地热在开采的同时重视回灌,有效地保护了宝贵的地热资源。天津在基岩裂隙型地热中回灌效果良好,但馆陶组地热井回灌量欠佳,为了解决这一问题,进行了研究探索。介绍了采用射孔工艺成井,在保证取水效果的同时,使稳定无压回灌量达到了101 m3/h,取得了很好的效果。Abstract: The recirculation being paid attention in the geothermal exploitation can effectively protect the valuable geother-mal resources.Recirculation effects are good in bedrock fracture geothermal exploitation in Tianjin, but not in Guantao for-mation, on which the pertinence study is made.The paper introduces the perforating technology in well completion, stable non-pressure recirculation volume reaches to 101m3/h with water taking effect being ensured at the same time.
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Key words:
- geothermal energy /
- recirculation well /
- perforating technology /
- Guantao formation
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