破碎带取心钻进技术
投稿时间：2013-09-09  修订日期：2014-02-10  点此下载全文
引用本文：杨相茂,彭汉华,许华松.破碎带取心钻进技术[J].钻探工程,2014,41(3):33-35.
YANG Xiang-mao,PENG Han-hua,XU Hua-song. Coring Drilling Technology in Fracture Zone[J]. Drilling Engineering, 2014,41(3):33-35.
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作者单位E-mail
杨相茂* 武汉中南冶勘资源环境工程有限公司 yangxma@tom.com 
彭汉华 武汉中南冶勘资源环境工程有限公司 1@1.com 
许华松 武汉金地探矿机械有限公司 xuhuas@126.com 
中文摘要:云南省兰坪县中排乡李子坪铅锌矿详勘施工中，由于地层破碎带较发育，采用绳索取心钻进岩心采取率仍很低，无法满足设计要求。通过设计导流底喷钻头及相应的冲洗液，调整钻进参数等技术措施，取得了较好的效果，确保了工程质量。
中文关键词:破碎带  岩心采取率  导流底喷钻头
 
Coring Drilling Technology in Fracture Zone
Abstract:In the detailed exploration of Liziping lead-zinc mine in Yunnan Province, because the formation fracture zone is developed, the core recovery rate is very low by using the wire-line coring drilling, which can not meet the design requirements. By the technical measures of design of diversion bottom jetting drill bit and the supporting flushing fluid and adjustment of drilling parameters, good results were achieved to ensure the engineering quality.
keywords:fracture zone  core recovery rate  diversion bottom jetting drill bit
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