中国科学院力学研究所机构知识库
Advanced  
IMECH-IR  > 水动力学与海洋工程重点实验室(2009-2011)  > 期刊论文
Title:
基于双重逾渗模型的裂隙多孔介质连通性研究
Alternative Title: STUDY OF CONNECTIVITY OF FRACTURED POROUS MEDIA BASED ON DUAL-PERCOLATION MODEL
Author: 郑委; 鲁晓兵; 刘庆杰; 张旭辉
Source: 岩石力学与工程学报
Issued Date: 2011
Volume: 30, Issue:6, Pages:1289-1296
Abstract: 孔隙和裂隙是裂隙多孔介质的2种渗流通道。在低渗和特低渗情况下,孔隙和裂隙能否构成贯穿的通道,决定介质能否发生渗流。针对低渗和特低渗裂隙多孔介质的连通性,结合孔隙逾渗理论和裂隙逾渗理论,提出一种双重逾渗模型。基于该模型,提出能够反映和比较裂隙多孔介质连通性的2个量化参数A_0和D,并重点讨论这2个量化参数物理意义。根据A_0和D这2个参数分析裂隙多孔介质的连通性特征。分析结果表明,以D=2为临界值,可以将裂隙多孔介质分为3种类型:"弥散型"、"临界型"、"指向型"。当D>2时,介质具有自封闭趋势,属于"指向型";随着孔隙连通和裂隙方向随机性的增强,这种自封闭趋势会被破坏,使介质趋向于"弥散型",即利于连通。少量长裂隙的存在对介质的连通性起决定作用。
English Abstract: Pores and fractures are two main flow channels in fractured porous media.Under low and ultra-low permeability conditions,whether seepage occurs in media or not is decided by whether pores and fractures can form a penetrated channel or not.A dual-percolation model coupled the pore percolation theory and the fracture percolation theory is presented to study the conductivity of the low and ultra-low fractured porous media.Based on the presented dual-percolation model,two parameters and D are presented to reflect and compare the conductivities of fractured porous media;and the physical meaning of these two parameters is quantitatively discussed.The connectivity of low and ultra-low permeability fractured porous media is investigated based on these two parameters.It is shown that the low and ultra-low permeability fractured porous media can be generally divided into three types by taking as the critical value,i.e.dispersion type,critical type,and directional type.Media are self-sealing when and they can be named as directional type.However,with the enhancements of randomnesses of porous connectivity and fracture directions,the self-sealing tendency will be destroyed and the conductivity will increase,which causes the media tending to become dissipation type.A few long fractures can play a great role on the connectivity of media.
Keyword: 岩石力学 ; 双重逾渗 ; 连通性 ; 裂隙逾渗 ; 孔隙逾渗
Language: 中文
Indexed Type: EI ; CSCD
Corresponding Author: 郑委
Correspondent Email: mr.zhengw@gmail.com
Related URLs: 查看原文
ISSN: 1000-6915
Rank: 中国科学院力学研究所水动力学与海洋工程重点实验室;中国石油勘探开发研究院采收率所
Subject: 力学
CSCD ID: CSCD:4283572
Department: LMFS海洋土力学(LHO)
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/45053
Appears in Collections:水动力学与海洋工程重点实验室(2009-2011)_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
C2011J084.pdf(884KB)----开放获取--View Download

Recommended Citation:
郑委,鲁晓兵,刘庆杰,等. 基于双重逾渗模型的裂隙多孔介质连通性研究[J]. 岩石力学与工程学报,2011-01-01,30(6):1289-1296.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[郑委]'s Articles
[鲁晓兵]'s Articles
[刘庆杰]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[郑委]‘s Articles
[鲁晓兵]‘s Articles
[刘庆杰]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: C2011J084.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院力学研究所 - Feedback
Powered by CSpace