Application of the Combined Drilling Technology of Drilling with Casing and Wire-line Coring
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摘要: 针对贵州省清镇市犁倭乡红花寨、白浪坝铝土矿破碎、漏孔、坍塌掉块的灰岩地层,采用了套管跟进与绳索取心组合钻探技术,克服了常规钻探技术方法钻进困难的问题,顺利完成了ZK3369孔钻探任务,取得了良好的效果。在分析施工难点的基础上,介绍了在破碎、漏失、坍塌掉快地层中套管跟进与绳索取心组合钻探技术施工工艺。Abstract: According to the broken, leaking, clasping and block falling limestone formations of the bauxite in Guizhou, the combined drilling technology of drilling with casing and wire-line coring was used to overcome the difficulties of conventional drilling methods, ZK3369 hole drilling was successfully completed with good result.On the basis of the analysis on the con-struction difficulties, the paper introduces the combined drilling technology of drilling with casing and wire-line coring in the broken, leaking, clasping and block falling formations.
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Key words:
- bauxite /
- broken limestone /
- clasping and block falling /
- leak /
- drilling with casing /
- wire-line coring
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