各向异性岩石钻进用钻头和孔底装置的分析研究与探讨
投稿时间:2020-05-24  修订日期:2020-09-23  点此下载全文
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作者单位E-mail
汤凤林 无锡钻探工具厂有限公司 fltang@cug.edu.cn 
基金项目:国家自然科学基金面上项目:液压冲击回转作用下热压WC-CU基孕镶金刚石钻头的磨损行为研究(编号:D0219,2019-2022)
中文摘要:钻探工程中可以遇到各种岩石。按物理力学性质来说,岩石可是均质(各向同性)和非均质(各向异性)的。多数情况下,在深孔钻进时,岩石可能受地质条件的影响,是各向异性的。各向异性岩石的特点之一是,不同受力方向上的强度不同,因此钻孔容易弯曲,直接影响钻探效率和质量。俄罗斯科研人员对各向异性岩石中钻进时使用的钻头和孔底装置进行了大量研究,取得了较好的效果,值得我们参考。
中文关键词:各向异性岩石  钻孔弯曲  深孔钻进  钻头  孔底装置  钻进效果
 
Analytical research and discussion about drill bit and borehole bottom device used for drilling in anisotropic formations
Abstract:: In drilling engineering different formations can be encountered. According to the physical and mechanical properties they are classified as isotropic and anisotropic ones. And in the most cases they are anisotropic formations under the influence of complicated geological conditions. One of their feathers is different hardness in different directions of loading, forcing borehole inclination and directly influencing on drilling rate and quality. Russian scientists have done a lot of research on drill bit and borehole bottom device used for drilling in the anisotropic formations and good results have been obtained and it is expected, that they have definite reference value for us in deep drilling.
keywords:anisotropic formation  borehole inclination  deep borehole drilling  borehole bottom device  drilling result
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