坚硬致密岩层用绳索取心钻头的研制与应用
投稿时间：2009-07-29  修订日期：2009-09-21  点此下载全文
引用本文：叶兰肃,南青民,罗伟.坚硬致密岩层用绳索取心钻头的研制与应用[J].钻探工程,2009,36(12):65-68.
YE Lan-su,NAN Qing-min,LUO Wei. Development and Application of Wire-line Coring Bit for Hard and Compact Rock Formation[J]. Drilling Engineering, 2009,36(12):65-68.
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作者单位E-mail
叶兰肃* 河北省地矿局探矿技术研究院 yelansu@126.com 
南青民 国土资源实物地质资料中心 nanqingmin@126.com 
罗伟 河南省地勘局第四地质探矿队  
中文摘要:为了克服绳索取心钻头钻进坚硬致密岩层出现的进尺缓慢、钻头寿命短的难题，着重从钻头胎体配方、金刚石参数、钻头水口等方面进行优化设计、试验并生产应用，使研制的绳索取心钻头(S77)具备良好的适应性，钻进坚硬～硬、中～弱研磨性岩层克服了“打滑”现象并延长了钻头的寿命，取得了一定的经济效益。
中文关键词:绳索取心钻头  胎体配方  金刚石参数  钻头水口  坚硬致密岩层
 
Development and Application of Wire-line Coring Bit for Hard and Compact Rock Formation
Abstract:Optimized design and tests were made on bit matrix formula, diamond parameters and bit nozzle to overcome slow drilling footage and short service life of the wire-line coring bit in hard and compact rock formation, the newly developed bit (S77), with good adaptability, overcame the drilling “sliding” in extra-hard to hard and mid to weak-abrasive rock formations.
keywords:wire-line coring bit  matrix formula  diamond parameter  bit nozzle  hard and compact rock formation
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