摘要
洼里砾岩地层是北京洼里地区一种特殊的砾岩地层。分析了其地质特征、成因及对钻探施工的影响,介绍了在此地区施工的3眼地热井所采用的钻井设备及工艺、钻进中存在的困难及采取的措施。
Wali conglomerate rocks are special formations distributed in Beijing Wali Area. The characteristics of Conglomerate, contributing factors and their effects to drilling were analyzed. The drilling equipment, drilling techniques, difficulties existing in drilling and countermeasures which were used in three geothermy well in Beijing were introduced.
出处
《探矿工程（岩土钻掘工程）》
2005年第12期43-45,共3页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
洼里砾岩
地热井
钻探工艺
钻具损坏
井斜
Wali conglomerate rocks
geothermy well
drilling techniques
drilling tool damage
well deviation
