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河南新蔡焦庄铁矿区预查ZK001孔超厚覆盖层钻进技术
引用本文:张东兴.河南新蔡焦庄铁矿区预查ZK001孔超厚覆盖层钻进技术[J].探矿工程,2013,40(12):47-49,53.
作者姓名:张东兴
作者单位:河南省有色地质矿产局第一地质大队,河南郑州450016
摘    要:河南新蔡县焦庄铁矿区ZK001钻孔在厚大覆盖层施工中因粘滞卡钻事故,导致钻孔报废。重新开孔后,吸取前期事故教训,更换适合地层的设备,采用优质泥浆,改进施工工艺,采取有效措施,于孔深1115.72 m时,达到地质目的而终孔,各项技术指标优秀。从钻孔结构、钻进方法、冲洗液性能等方面进行了分析,简述了施工中出现的问题及应对措施。

关 键 词:钻探设备  钻孔结构  冲洗液  绳索取心  套管护壁  焦庄铁矿
收稿时间:2013/6/4 0:00:00
修稿时间:2013/10/23 0:00:00

Drilling Technology of Over-thick Overburden Layer Drilling in Pre-detecting Hole in Henan
ZHANG Dong-xing.Drilling Technology of Over-thick Overburden Layer Drilling in Pre-detecting Hole in Henan[J].Exploration Engineering(Drilling & Tunneling),2013,40(12):47-49,53.
Authors:ZHANG Dong-xing
Institution:ZHANG Dong-xing (No. 1 Geological Team, Henan Provincial Non-ferrous Metals Geological and Mineral Resources Bureau, Zhengzhou Henan 450016, China)
Abstract:A drill sticking accident caused ZK001 borehole abandonment in Jiaozhuang iron ore area of Henan, the con-struction technology was improved by using proper equipment and high-quality mud, the final hole with depth of 1115.72m was reached with good technical indexes.Analysis is made on the borehole structure, drilling methods and properties of flushing fluid;the problems appeared in the construction and the countermeasures are briefly discussed.
Keywords:drilling equipment  borehole structure  flushing fluid  wire-line core drilling  wall protection with casing  Jiaozhuang iron ore
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