摘要
在煤田地质孔施工中,经常遇到钻孔内产生不同程度的坍塌、漏失和涌水等问题,给钻探生产带来了极大的影响。以磁西40-7孔和武安ZK11-1孔为例,介绍了水泥—水玻璃双液注浆堵漏的机理、施工工艺及主要技术参数。从堵漏的效果来看,该方法具有堵漏成功率高、施工简便、安全可靠和费用低的特点。
In coal geological drilling,varying problems of collapsing,leakage and water gushing are encountered quite often,thus greatly impact drilling operations.To take the Cixi 40-7 and Wuan ZK11-2 boreholes as examples,introduced the cement-water glass dual slurry grouting leak stopping mechanism,operation technology and main technical parameters.In view of leak stopping effect,the method has characteristics of high mission success rate,simple operation,safe and reliable,low cost.
出处
《中国煤炭地质》
2010年第B08期128-130,共3页
Coal Geology of China
关键词
钻孔漏失
注浆堵漏
水泥—水玻璃浆液
施工工艺
煤田地质孔
borehole leakage
grouting leak stopping
cement-water glass slurry
operation technology
coal geological borehole
