唐山曹妃岛大酒店缩径软层地热深井设计与施工

Design and Construction of Hole Shrinkage Deep Geothermal Well in Soft Layer of Tangshan Caofei Island Hotel the Node

摘要:

唐山曹妃岛大酒店位于沿海第四系软层的工程地质施工区，针对第四系缩径软层地热深井钻井技术难点，在设计施工中采取了低失水量、高密度钠土泥浆护壁钻进、控制泵量等工艺技术措施，效果显著。总结了一眼缩径软层地热深井钻井和成井施工技术。

Abstract:

Tangshan Caofeidao hotel is located in the Quaternary strata area along the coastal region. According to the drilling technical difficulties of deep geothermal well in Quaternary hole shrinkage soft layer, low fluid loss and high density sodium soil slurry and pump capacity control were adopted for wall protection drilling in the design and construction. The paper summed up the drilling and completion technologies of a deep geothermal well in hole shrinkage soft layer.