河南新蔡焦庄铁矿区预查 ZK001孔超厚覆盖层钻进技术

详细信息

刊出日期: 2013-12-10

Drilling Technology of Over-thick Overburden Layer Drilling in Pre-detecting Hole in Henan

Publish Date: 10 December 2013

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。
- 钻探设备 /
- 钻孔结构 /
- 冲洗液 /
- 绳索取心 /
- 套管护壁 /
- 焦庄铁矿
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.
- drilling equipment /
- borehole structure /
- flushing fluid /
- wire-line core drilling /
- wall protection with casing /
- Jiaozhuang iron ore