摘要
陕西关中盆地地热资源丰富,开发利用程度较高。地热钻探是地热开发利用的主要手段,地热钻探施工中常见问题有地层坍塌、粘性土造浆、钻头泥包、钻井液性能恶化,钻具落井等问题。通过实例对这些常见问题的原因进行分析,探讨了预防措施及处理方法。
Guanzhong Basin in Shaanxi is rich in geothermal resources which has a high degree of development and utilization.Geothermal drilling is the main means for geothermal exploitation;however many problems are often encountered in drilling operations,including borehole collapse,mud production from clayey soil,drill bit balling,deterioration of drilling fluid properties,lost drilling tools.This paper analyzes the causes of these problems by examples,and discusses the prevention and treatment measures.
作者
陈建兵
王振福
CHEN Jianbing;WANG Zhenfu(Shaanxi Geology and Mining Group Co., Ltd., Xi’an Shaanxi 710054, China)
出处
《探矿工程（岩土钻掘工程）》
2019年第7期21-27,共7页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
关中盆地
地热井
地热钻探
钻井液
井壁坍塌
钻头泥包
Guanzhong Basin
geothermal wells
geothermal drilling
drilling fluid
borehole collapse
drill bit balling
