Volume 15 Issue 6
Apr.  2011
Turn off MathJax
Article Contents
XU Demin, HUANG Runqiu, ZHANG Qiang, DENG Ying′er. 2007: EXPERIMENTAL STUDY ON PERMEABILITY OF POROUS MEDIA UNDER HIGH CONFINING PRESSURE. JOURNAL OF ENGINEERING GEOLOGY, 15(6): 752-756.
Citation: XU Demin, HUANG Runqiu, ZHANG Qiang, DENG Ying′er. 2007: EXPERIMENTAL STUDY ON PERMEABILITY OF POROUS MEDIA UNDER HIGH CONFINING PRESSURE. JOURNAL OF ENGINEERING GEOLOGY, 15(6): 752-756.

EXPERIMENTAL STUDY ON PERMEABILITY OF POROUS MEDIA UNDER HIGH CONFINING PRESSURE

Funds:

  • Received Date: 2007-05-14
  • Rev Recd Date: 2007-06-13
  • Publish Date: 2007-11-29
  • This paper examines permeability of porous media under different confining pressures. It uses unchangeable water pressure method. Large size soft rocks with low permeability have been systematically tested with a new equipment called high pressure permeability testing machine in laboratory. The penetration water pressure fluctuation scope is 0.01 MPa. The seepage exit water volume testing precision is 0.05 ml. According to a linear relationship of water volume and time, seepage quantity can be accurately calculated. The test results demonstrate that the permeability coefficient decreases with the increasing of confining pressure, and increase when unloading. The increasing rate during unloading is lower than that during loading. On the basis of the axial strain variation situation, it is found that the rock permeability change is mainly affected by the confining pressure during the coupling process of stress-seeping in rock samples at laboratory. The confining lateral pressure makes the porosity and seepage pipes to have compressive deformation.
  • loading
  • [1] B raceW F,W alsh J B,F rangosW T.Perm eab ility of gran ite under h igh pressure
    [J].G eophysical R esearch,1968,73(6):2225~2236.

    [2] 张铭.低渗透岩石实验理论及装置
    [J].岩石力学与工程学报,2003,22(6):919~925.Zhang M ing.Theory and apparatu s for test ing low-perm eab ility of rocks in laboratory.Ch inese Journal of R ock M echan ics and E ngineering,2003,22(6):919~925.

    [3] 王恩志,张文韶,韩小妹等.低渗透岩石在围压作用下的耦合渗流实验
    [J].清华大学学报(自然科学版)2005,45(6):764~767.W ang Enzh,i Zhang W en shao,H an X iaom ei. Expermi ental study on coupled flow th rough low p erm eabi lity rock under con fining pressu re.Jou rnal of Tsinghua U n ivers ity(Science and Technology),2005,45(6):764~767.

    [4] 贺玉龙,杨立中.围压升降过程中岩体渗透系数变化特性的试验研究
    [J].岩石力学与工程学报,2004,23(3):415~419.H e Y u long,Y ang L izhong.Testing study on variational ch aracterist ics of rock m ass perm eab ility under load ing-un load ing of con fin ing p ressure.Ch in ese Jou rnal of R ock M echan ics and Eng ineering,2004,23(3):415~419.

    [5] 陈祖安,伍向阳,孙德明,等.砂岩渗透系数随静压力变化的关系研究
    [J].岩石力学与工程学报,1995,14(2):155~159.C hen Zuan,W u X iangyan,Sun D em ing.Study on relat ion sh ip betw een perm eab ility of sand stone and hyd ros tat ic p ressure.Ch in ese Jou rnal of R ock M ech an ics and E ngineering,1995,14(2):155~159.

    [6] 叶源新,刘光廷.岩石渗流应力耦合特性研究
    [J].岩石力学与工程学报,2005,24(14)2518~2525.Y e Y uanx in,L iu G uangyan.R esearch on coupl ing characteristics of flu id flow and stress w ith in rock.Ch inese Jou rnal of R ock M e chan ics and Eng ineering.2005,24(14)2518~2525.

    [7] Jones FO,Ow en sW W.A Laboratory study of Low-perm eab ility G as Sand s
    [J].JPT,Sep,1980,1631~1640.

    [8] 周应华周德培封志军.三种红层岩石常规三轴压缩下的强度与变形特性研究
    [J].工程地质学报,2005,13(4):477~480.Zhou Y inghu a,Zhou D ep e,i Feng Zh i jun.Strength and deform ation of th ree types of red b eds under convent ion al triaxial com press ion.Jou rnal of Engin eering G eo logy,2005,13(4):477~480.

  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Article views (2661) PDF downloads(1053) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint