...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mining Engineering >Effect of additives on drilling in hard rock
【24h】

Effect of additives on drilling in hard rock

机译：添加剂对硬岩钻孔的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Rock disintegration processes are usually inefficientand costly operations in mineral beneficiation, mine developmentand oil well preparations. Thus, there is a strong need forimproving the energy efficiency of unit operations such as drillingand comminution. The effects of selected cations and anions ondrilling efficiency in a hard rock formation (Dakota Sandstone)were studied. The zeta potentials and the tensile strengths of thedrilled samples were measured under similar chemical conditions.The chemicals tested included Mg-Cl_2, Na_2CO_3, AlCl_3,NaCl and Dodecylammonium chloride. The results indicated thatdrilling rates can be enhanced or retarded depending on chemicalconditions such as the solution pH and the type and concentrationof reagents. Drilling data are correlated with mechanical (tensilestrength) and interfacial (zeta potential) properties of the rockformation. The mechanisms involved are discussed in light ofRehbinder's and West-wood's theories.
机译：在矿物选矿，矿山开发和油井准备工作中，岩石崩解过程通常效率低下且成本高昂。因此，强烈需要提高诸如钻孔和粉碎的单元操作的能量效率。研究了选择的阳离子和阴离子对硬岩层（达科他砂岩）中钻井效率的影响。在相似的化学条件下测量了样品的ζ电位和抗张强度。所测试的化学品包括Mg-Cl_2，Na_2CO_3，AlCl_3，NaCl和十二烷基氯化铵。结果表明，取决于化学条件（例如溶液的pH值以及试剂的类型和浓度），可以提高或降低钻井速率。钻井数据与岩层的机械（抗拉强度）和界面（zeta势）特性相关。根据瑞宾德和韦斯特伍德的理论对所涉及的机制进行了讨论。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号