湖北磷矿复杂地层深孔钻探施工工艺  

Construction Technique of Deep Hole Drilling in Complex Phosphate Rock

作　　者：胡成涛 郑门关 周红心[2] 许华松[2] 

机构地区：[1]中化地质矿山总局湖北地质勘查院,湖北荆州434000 [2]中国冶金地质勘查总局中南局,湖北武汉430081

出　　处：《探矿工程（岩土钻掘工程）》2010年第11期19-21,共3页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：介绍了湖北兴山磷矿复杂地层深孔钻探施工工艺。针对复杂地层合理选择了钻头和钻进工艺参数;对破碎孔段采用优质泥浆钻进后,下套管稳定孔壁;对坍塌、掉块严重的孔段采用水泥浆封孔固壁;同时合理选择了绳索取心钻具,利用XY-5型钻机,完成了复杂地层1930 m深孔钻探任务。The paper presents the construction technology of deep hole drilling in complex strata in Xingshan phosphate mine of Hubei province.The bit and drilling technology parameters were properly chosen for drilling in the complex strata.High quality drilling fluid was used in fractured hole section drilling with case for hole wall stability,cementing was used in serious collapsing and block-falling sections and wire-line coring tools and XY-5 type driller were used to complete 1930 m deep hole in complex strata.

关 键 词：复杂地层 深孔钻探 封孔固壁 绳索取心 

分 类 号：R634.5[医药卫生—外科学]