SYZX75型绳索取心液动锤在肃北德勒诺尔铁矿区的应用

Application of SYZX75 Wire-line Coring Hydro-hammer in Delenuoer Iron Deposit of Subei

摘要:

介绍了SYZX75型绳索取心液动锤在甘肃省肃北县德勒诺尔铁矿区坚硬、破碎地层中的应用情况，总结了该钻具在斜孔施工中的经验。实践表明，使用SYZX75型绳索取心液动锤，大幅度提高了回次进尺和钻进效率；有效克服了破碎地层的岩心堵塞，提高了破碎地层岩心采取率；有助于斜孔施工中的孔斜度控制。

Abstract:

This paper describes the application of SYZX75 wire-line coring hydro-hammer in hard and broken formation of Delenuoer iron deposit in Subei County of Gansu Province and summarizes the experience of inclined hole drilling construction with the drill. The practice showed that by using SYZX75 wire-line coring hydro-hammer, the round trip meterage and drilling efficiency were greatly enhanced, core blockage in broken formation was effectively overcame and core recovery was improved in broken formation; all these contributed to control the inclination in inclined hole drilling construction.