›› 2008, Vol. 29 ›› Issue (6): 1649-1654.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Effect of effective stress on fractured low-permeability sandstone reservoir pressure response

LI Yi-qiang1, BAN Fan-sheng2, 3, GAO Shu-sheng3, XUE Hui3   

  1. 1. Key Laboratory of EOR, Education Ministry, Daqing Petroleum Institute, Daqing 163318, China; 2. Institute of Percolation Mechanics, Chinese Academy of Sciences, Langfang 065007, China; 3. Langfan Branch of Research Institute of Petroleum Exploitation and Development, Langfang 065007, China
  • Received:2007-12-05 Online:2008-06-10 Published:2013-07-15

PDF (PC)

1001

Abstract: In order to study the seepage law and influential factors of flow in double porosity medium in the pore-fractured low-permeability reservoir, the dual-media cross-flow mathematical model is established and its solution is given. By numerical solution, the pressure dynamic characteristics and effects of storage coefficient and interporosity flow coefficient on pressure response are researched. By pressure-sensibility experiment, the effect of effective stress on percolation ability of double porosity medium low-permeability reservoir is studied. The study shows that the larger storage coefficient is and the later happening interporosity flow time is, the smaller interporosity flow coefficient is the larger interporosity flow pressure is. Permeability and porosity decrease when effective stress increases, which changes storage coefficient and interporosity flow coefficient and effects pressure dynamic characteristics. So keeping pressure and protecting reservoir are important for developing the pore-fractured low-permeability reservoir.

Key words: effective stress, cross-flow, permeability, storage coefficient, interporosity flow coefficient

CLC Number: 

  • TU 452
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] WANG Chen-lin, ZHANG Xiao-dong, DU Zhi-gang, . Experimental study of the permeability of coal specimen with pre-existing fissure under cyclic loading and unloading [J]. Rock and Soil Mechanics, 2019, 40(6): 2140-2153.
[2] YU Liang-gui, ZHOU Jian, WEN Xiao-gui, XU Jie, LUO Ling-hui, . Standard exploration of permeability coefficient test for clay by HCA [J]. Rock and Soil Mechanics, 2019, 40(6): 2293-2302.
[3] LIU Jian, CHEN Liang, WANG Chun-ping, MA Li-ke, WANG Ju. A new method of calculating gas permeability of rock under unsteady flow condition and its application [J]. Rock and Soil Mechanics, 2019, 40(5): 1721-1730.
[4] TAO Gao-liang, WU Xiao-kang, GAN Shi-chao, XIAO Heng-lin, MA Qiang, LUO Chen-chen, . Experimental study and model prediction of permeability coefficient of unsaturated clay with different initial void ratios [J]. Rock and Soil Mechanics, 2019, 40(5): 1761-1770.
[5] ZHENG Guo-feng, GUO Xiao-xia, SHAO Long-tan, . Experimental verification of an unsaturated shear strength criterion based on the state surface expression [J]. Rock and Soil Mechanics, 2019, 40(4): 1441-1448.
[6] ZHANG Zhao, CHENG Jing-xuan, LIU Feng-yin, QI Ji-lin, CHAI Jun-rui, LI Hui-yong, . Physical approach to predict unsaturated permeability function based on soil particle size distribution [J]. Rock and Soil Mechanics, 2019, 40(2): 549-560.
[7] LIU Yi-fei, ZHENG Dong-sheng, YANG Bing, ZHU Bing, SUN Ming-xiang. Microscopic simulation of influence of particle size and gradation on permeability coefficient of soil [J]. Rock and Soil Mechanics, 2019, 40(1): 403-412.
[8] ZHU Chang-qi, CUI Xiang, HU Ming-jian, WANG Xin-zhi, TANG Jian-jian, . Study of electric conductivity and permeability of calcareous soil [J]. Rock and Soil Mechanics, 2018, 39(S2): 142-148.
[9] MA Rui-nan, GUO Hong-xian, CHENG Xiao-hui, LIU Jing-ru, . Permeability experiment study of calcareous sand treated by microbially induced carbonate precipitation using mixing methods [J]. Rock and Soil Mechanics, 2018, 39(S2): 217-223.
[10] WANG Ke-zhong, JIN Zhi-hao, YANG Mai-zhen, LIU Xian-liang, LIU hua, . Permeability stability study of overhang rock cofferdam during excavating foundation pit of water intake tower [J]. Rock and Soil Mechanics, 2018, 39(S2): 415-422.
[11] LI Yu-dan, DONG Ping-chuan, ZHOU Da-wei, WU Zi-seng, WANG Yang, CAO Nai. A dynamic model of apparent permeability for micro fractures in shale gas reservoirs [J]. , 2018, 39(S1): 42-50.
[12] DONG Jin-yu, WANG Chuang, ZHOU Jian-jun, YANG Ji-hong, LI Yan-wei，. Experimental study of foam-improved sandy gravel soil [J]. , 2018, 39(S1): 140-148.
[13] WANG Wei, FANG Zhi-ming, LI Xiao-chun,. Experimental and model analysis of permeability of coal sample from Qinshui basin under hydrostatic pressure conditions [J]. , 2018, 39(S1): 251-257.
[14] DUAN Xiao-meng, ZENG Li-feng, . Bearing structure of unsaturated soil and generalized structural properties [J]. , 2018, 39(9): 3103-3112.
[15] ZUO Yu-jun, SUN Wen-ji-bin, WU Zhong-hu, XU Yun-fei, . Experiment on permeability of shale under osmotic pressure and stress coupling [J]. , 2018, 39(9): 3253-3260.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LIU Xiao-wen，CHANG Li-jun，HU Xiao-rong. Experimental research of matric suction with water content and dry density of unsaturated laterite[J]. , 2009, 30(11): 3302 -3306 .
[2] HUANG Jian-hua，SONG Er-xiang. Research on mechanical properties of frozen curtain in large anchorage foundation pit engineering[J]. , 2009, 30(11): 3372 -3378 .
[3] WANG Zhao-yang, XU Qiang, NI Wan-kui. Study of undisturbed loess stress-strain relation during CT test[J]. , 2010, 31(2): 387 -391 .
[4] WAN Shao-shi, NIAN Ting-kai, JIANG Jing-cai, LUAN Mao-tian. Discussion on several issues in slope stability analysis based on shear strength reduction finite element methods (SSR-FEM)[J]. , 2010, 31(7): 2283 -2288 .
[5] YAN Tie, LI Wei, BI Xue-liang. Research on effective stress model in porous media based on fractal method[J]. , 2010, 31(8): 2625 -2629 .
[6] LIU Jia, WANG Dong. Tension resistance and suction of plate anchor foundation in normally consolidated clay[J]. , 2009, 30(3): 735 -740 .
[7] XU Wei-sheng, CHAI Jun-rui, CHEN Xing-zhou, SUN Xu-shu. Study of nonlinear noncubic seepage in netwok rock and its application[J]. , 2009, 30(S1): 53 -57 .
[8] ZHAO Shang-yi, ZHENG Ying-ren, LI An-hong, QIU Wen-ping, TANG Xiao-song. Application of multi-row embedded anti-slide piles to landslide of Wulong county government[J]. , 2009, 30(S1): 160 -164 .
[9] CHEN Bao-guo , SUN Jin-shan , ZHANG Lei. Study of stressing state and ground treatment of reinforced concrete arch culvert[J]. , 2011, 32(5): 1500 -1506 .
[10] ZHAO Yue-tang, LIN Jia-wei, SHI Lei. Research of spalling under impulse loading[J]. , 2011, 32(S2): 122 -126 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd