• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >A STUDY OF FLUID INFILTRATION AND PROPAGATION OF VERTICAL HYDRAULIC FRACTURE IN A POROUS MEDIUM (DARCY'S LAW, FINITE-ELEMENT METHOD, DISPLACEMENT DISCONTINUITY, FLUID LEAK-OFF).
【24h】

A STUDY OF FLUID INFILTRATION AND PROPAGATION OF VERTICAL HYDRAULIC FRACTURE IN A POROUS MEDIUM (DARCY'S LAW, FINITE-ELEMENT METHOD, DISPLACEMENT DISCONTINUITY, FLUID LEAK-OFF).

机译：多孔介质中垂直液压裂缝的渗流与扩散研究（达西定律，有限元方法，位移不连续性，渗漏）。

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

The infiltration of fracturing fluid into a rock medium and its effect on the size of the hydraulically induced fracture were examined in this study. In formulating the problem, the equation for the fluid motion inside the fracture was derived by considering the conservation of the fluid mass, and the equation which relates the fluid pressure and the fracture opening was derived by considering the over-all deformation of the porous rock medium. The finite element method and the displacement discontinuity method were employed to obtain the solutions for the problem.;The results from the study have indicated that: (1) The poro-elastic model predicts a shorter fracture length and a wider fracture width in comparison with those predicted from the Geertsma model in which the rock is modeled as an elastic medium. The effect of rock porosity becomes significant when the porosity and the over-all modulus of the medium are high. (2) For a given pumping rate, the dimension of the fracture is controlled by the viscosity of the frac-fluid, the mechanical properties of the rock medium, and the mobility of the leak-off fluid in the rock medium. (3) A higher leak-off fluid mobility will produce a smaller fracture, a larger wet zone, and a higher frac-fluid pressure inside the fracture. (4) The empirical leak-off coefficient is related to the permeability and the thickness of the wet rock region and the filter-cake on the fracture surface. The effect of filter-cake is an important factor in the design of a hydraulically induced fracture.
机译：本研究研究了压裂液渗入岩石介质中及其对水力压裂裂缝尺寸的影响。在提出问题时，考虑了流体质量的守恒，推导了裂缝内部的流体运动方程，并考虑了多孔岩的整体变形，推导出了与流体压力和裂缝开口有关的方程。介质。研究结果表明：（1）孔隙弹性模型预测的断裂长度较短，而断裂宽度较之较宽。根据Geertsma模型预测的结果，其中将岩石建模为弹性介质。当介质的孔隙率和总体模量较高时，岩石孔隙率的影响变得显着。 （2）对于给定的抽速，裂缝的大小受压裂液的粘度，岩石介质的机械性能以及泄漏流体在岩石介质中的流动性控制。 （3）较高的泄漏流体流动性将产生较小的裂缝，较大的湿区和较高的裂缝内部压裂液压力。 （4）经验泄漏系数与裂缝表面湿岩区和滤饼的渗透率和厚度有关。滤饼的效果是设计水力压裂裂缝的重要因素。

著录项

  • 作者

    CHIOU, YAW-JENQ.;

  • 作者单位

    The University of Texas at Austin.;

  • 授予单位 The University of Texas at Austin.;
  • 学科 Engineering Petroleum.
  • 学位 Ph.D.
  • 年度 1986
  • 页码 138 p.
  • 总页数 138
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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