• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Shale energy engineering conference 2014: technical challenges, environmental issues, and pubulic policy >Field Borehole Testing of Anisotropic Shale Rock
【24h】

Field Borehole Testing of Anisotropic Shale Rock

机译：各向异性页岩的现场钻孔测试

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

This paper describes a group of field testing to study the characteristics of shale rock that shows strong anisotropic behaviors. Field borehole geophysical testing were performed at three locations to depth up to 280 ft. Based on the site investigation program, most subsurface rock consists of shale with thin clay seams embedded at certain depths. Borehole geophysical testing performed at the site include: 1) Borehole caliper, 2) Natural Gamma and Electrical Resistivity, 3) Acoustic Televiewer. The purpose was to characterize the geological structures, especially the major joint planes in rock formation. Borehole seismic testing includes seismic downhole testing, which determined the shear wave velocity of rock at different depths typically at 5 ft interval. A specially design seismic cross hole testing was conducted, where the shear wave excitation was generated by striking the steel tube. Simplifications are made to interpret the crosshole signals where the rock is assumed to be consistent of a uniform heterogeneous material. The results indicate that the shear wave velocity in the inclined direction is typically much larger than the shear wave velocity in the vertical direction. The speed typically decreases as the inclination angle increases. This is consistent with commonly observed anisotropic behaviors in sedimentary rocks with horizontal bedding plan.
机译：本文介绍了一组现场测试，以研究显示出强烈各向异性的页岩特征。在三个位置进行了现场钻孔地球物理测试，深度达280英尺。根据现场调查程序，大多数地下岩石由页岩组成，并在一定深度埋有薄层粘土。在现场进行的钻孔地球物理测试包括：1）钻孔卡尺，2）天然伽玛和电阻率，3）声学Televiewer。目的是表征地质结构，尤其是岩层中的主要节理面。井眼地震测试包括井下地震测试，该测试确定了通常在5英尺间隔的不同深度处的岩石剪切波速度。进行了专门设计的地震横孔测试，通过撞击钢管产生剪切波激励。在假定岩石与均匀的异质材料一致的情况下，简化了解释井孔信号的过程。结果表明，倾斜方向的剪切波速度通常比垂直方向的剪切波速度大得多。速度通常随着倾斜角度的增加而降低。这与在水平层理计划下沉积岩中通常观察到的各向异性行为是一致的。

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