...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of natural gas science and engineering >A comparative study of fracture surface roughness and flow characteristics between CO(2 )and water fracturing
【24h】

A comparative study of fracture surface roughness and flow characteristics between CO(2 )and water fracturing

机译：CO（2）和水压裂之间的断裂表面粗糙度和流动特性的对比研究

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

Fracture surfaces were measured using a 3-D optical topography scanner, and the fracture surfaces caused by CO2 fracturing are much rougher than those caused by water fracturing due to the stronger penetrability of CO2 through tiny pores and channels. The fracture roughness of siltstone with intensive macro-pores is greater than that of shale, because fractures preferably propagate along the orientation of macro-pores. Fracture flow conductivity is greatly enhanced after small shear displacement between fracture surfaces, because of the generation of flow pathways on rough fracture surfaces. Shear deformation perpendicular to flow direction creates relatively unobstructed and straight flow pathways along the flow direction, and flow conductivity is around one order of magnitude higher than that with shear deformation along the flow direction and 300-400 times that without any shear deformation. Our results suggest that CO2 fracturing has an advantage over water fracturing in improving flow capacity of created fractures.
机译：使用3-D光学形貌扫描仪测量裂缝表面，并且由于CO2通过微小孔和通道的渗透性强烈，由CO2压裂引起的裂缝表面比水压缩引起的骨折表面更加粗糙。具有密集型宏观孔的硅铁晶的骨折粗糙度大于页岩，因为骨折优选沿宏观孔的取向繁殖。在裂缝表面的小剪切位移后，裂缝流动导电率大大提高，因为在粗糙骨折表面上产生流动途径。垂直于流动方向的剪切变形沿着流动方向产生相对无阻碍的和直流的通路，并且流动导电性比沿着流动方向的剪切变形和没有任何剪切变形的300-400次，流动导电率大约一个级。我们的研究结果表明，CO2压裂在水分压裂方面具有改善创造骨折的流量的优势。

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