| 卢春华.提高复杂地层取心质量的新型钻具[J].地质与勘探,2009,45(2):112-114 |
| 提高复杂地层取心质量的新型钻具 |
| New Dr illing Tools for Improv ing Core Recovery in Complex Stra ta |
| 投稿时间：2008-07-07 修订日期：2009-02-07 |
| DOI： |
| 中文关键词: 岩芯样品 双管强制取芯钻具 工作机理 取芯质量 |
| 英文关键词: core samp le, double barreled forced coring tools, working p rincip le, coring quality |
| 基金项目:中国地质大学(武汉)优秀青年教师资助计划项目(编号: CUGQNL0819)资助。 |
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| 中文摘要: |
| [摘要]地质勘探钻进的主要任务是可靠准确地获取有代表性的地层岩芯样品,然而,在复杂地
层中,现有的钻探方法很难获得有代表性的高质量岩芯样品。本文介绍了一种双管强制取芯新型钻具,
论述了其工作机理,对其关键机构的设计进行了分析探讨,并归纳出新型钻具的主要技术特征,生产试
验表明,该新型钻具能够显著提高复杂地层的取芯质量,应用前景广泛。 |
| 英文摘要: |
| Abstract:The main task of geological exp loration drilling is to obtain rep resentative core samp les reliably and accurately, however, it is very difficult
to get high quality core samp leswith conventional drilling techniques in comp lex strata. A kind of new double barreled forced coring tools is introduced
here, itsworking p rincip le is discussed and its key mechanisms is analyzed, the main technical characteristics of the new coring tools are summarized.
Drilling tests indicate that the new coring tools can obviously increase the coring quality and core recovery in comp lex strata, it has a broad app lication
p rospects. |
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