SYZX75型绳索取心液动锤在坚硬致密“打滑”地层的应用

Application of SYZX75 Wire-line Coring Hydro-hammer in Hard Compact “Skid” Formation

摘要:

在结构致密、颗粒细小、研磨性弱的坚硬岩层，引进了SYZX75型绳索取心液动锤钻进技术，取得了钻进效率高、钻孔质量好的效果，有效克服了破碎地层的岩心堵塞和坚硬致密“打滑”地层的钻进难题。

关键词:SYZX75型绳索取心液动锤;“打滑”地层;冲击回转钻进

Abstract:

SYZX75 wire-line coring hydro-hammer was introduced in compact, low abrasive hard rock bed with small particle, core blockage in broken formation and drilling difficulties in hard compact “skid” formation were overcome with high drilling efficiency and good-quality borehole.

Key words:SYZX75 wire-line coring hydro-hammer; “skid” formation; percussive-rotary drilling