准噶尔盆地砂岩铀矿绳索取心钻探适用性研究  

The Applicability Study of Wire-line Core Drilling in the Sandstone Uranium Deposit in Jungar Basin

作　　者：仲思柏 Zhong Sibai(Geological Party No.216 CNNC,Urumqi,China)

机构地区：[1]核工业二一六大队,新疆乌鲁木齐

出　　处：《科学技术创新》2023年第10期186-191,共6页Scientific and Technological Innovation

摘　　要：20世纪90年代核工业二一六大队开始在新疆准噶尔盆地砂岩型铀矿地层开展钻探施工,一直延用普通单管取心钻进工艺,人工劳动强度高,随着钻孔深度的逐年增加,传统钻进工艺的辅助时间也大幅增加,施工周期变长,钻探生产成本随之上涨。为提高地浸砂岩铀矿钻进效率,减少600 m以深钻孔的提下钻辅助时间占比,大队在新疆准噶尔盆地东部、南缘、西部等地区砂岩型铀矿中进行了绳索取心钻探的试验,通过试验确定适宜的钻具组合和钻进参数,配备的高速离心机等固控设备使冲洗液含砂量降至2%左右,试验了液动冲击器和不同类型的PDC钻头,总结了绳索取心钻进工艺在沉积岩地层中应用的施工经验。Since 1990s,the geological party No.216 have started the drilling work with the common drilling technology in sand-stone type uranium deposit in Junggar Basin,Xinjiang.The intensity of labor this kind of drilling method is very heavy.As the drill getting more and more deep,the tradional drilling method needs more time and money.For improving the drilling efficiency in in-situ leachable sandstone-type uranium deposit,the wire-line core drilling was selected to be used in eastern,western and southern Junggar Basin.The high speed centrifuge,the hydraulic impactor and different type drilling bit were also used in this programme.This paper summarized the drilling experience and notes of the wire-line core drilling in the sandstone-type uranium deposit.

关 键 词：砂岩型铀矿 绳索取心 高速离心机 PDC钻头 液动冲击回转钻进 生产效率 

分 类 号：P634.5[天文地球—地质矿产勘探]