钻探方向之岩心采取率因素影响及探讨  

Discussion on Drilling Direction and Influence Factors of Core Recovery Percentage

作　　者：杨剑 杨英[2] YANG Jian;YANG Ying(409 Geological Prospecting Team,Hunan Exploitation Bureau of Geology ＆ Mineral Prospecting,Hunan Yongzhou 425000 China;Hunan Vocational College of Engineering,Hunan Changsha 410151 China)

机构地区：[1]湖南省地质矿产勘查开发局四〇九队,湖南永州425000 [2]湖南工程职业技术学院,湖南长沙410151

出　　处：《科技创新与生产力》2018年第5期76-77,共2页Sci-tech Innovation and Productivity

摘　　要：优质岩心的获得关键在于对岩心采取率的质量进行严格把关,通过对地质因素影响岩心采取质量的原因分析和对岩心采取率质量因素的影响进行详细阐述,并从多个角度对机械因素、钻进方法、钻具结构以及操作技术等方面进行探讨,以确保采取到有代表性的岩心。The key to obtain high-quality core is to strictly control the quality of core recovery percentage. In this paper, the authors analyzed reasons of affecting core recovery quality by geological factors and expounded influences of quality factors of core recovery percentage. Then, the authors discussed mechanical factors, method of drilling, structure of drilling tool and operation technique from multiple angles in order to ensure typical cores can be obtained.

关 键 词：岩心钻探 岩心采取率 岩石构造 地质因素 

分 类 号：P634.1[天文地球—地质矿产勘探]