不同溶液渗透溶蚀作用下碳酸盐岩渗透特性研究

doi:10.13722/j.cnki.jrme.2018.0520

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Abstract For the research of the permeability evolution of carbonate rocks under seepage corrosion effect of different solutions，Na2SO4 solution and distilled water were used to conduct rock permeation experiment for 15 d using the hydraulic-mechanical coupling permeability experimental system. The curves of carbonate permeability versus time and the variation of mineral ion concentration in leachate with time corresponding to the design conditions were obtained. The relationship between the law of permeability change，the law of mineral dissolution and various influencing factors was analyzed. The results indicate that the significant changes in the permeability of carbonate rocks in early stage are caused by stress conditions. With the development of experiment，the effect of stress decreases gradually. When the confining pressure and osmotic pressure increase equally，permeability is greatly influenced by confining pressure. The trend of permeability is less affected by minor changes of stress. In the stable stage，the change of rock permeability is the result of the joint action of the corrosion and mineral precipitation of the osmotic solution. The dissolution of Na2SO4 solution is relatively strong，CaCO3 dissolves strongly in the upstream of rock sample. After the concentration of Ca2+ reaches the maximum，the CaCO3 precipitates in the downstream，resulting in the heterogeneity of dissolution process，and finally the permeability decreased. The dissolution of distilled water to carbonate minerals is weak，a small amount of Ca2+ dissolves in the upstream and the dissolution rate of the downstream became lower. The Ca2+ concentration can't reach the supersaturated state along the path，that makes it difficult to precipitate，and the final permeability maintains stability.

Key words： rock mechanics carbonate rocks permeability permeation experiment corrosion

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	Articles by authors
	SHENG Jinchang1
	WU Yanqing1
	2
	BAI Kehan1
	2
	DU Yunchen1
	ZHANG Xiaoxiao1
	ZHOU Qing1
	LI Keya1

Cite this article:

SHENG Jinchang1,WU Yanqing1,2, et al. Study on the permeability evolution of carbonate rocks under seepage corrosion effect of different solutions[J]. , 2019, 38(S2): 3279-3286.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2018.0520 OR https://rockmech.whrsm.ac.cn/EN/Y2019/V38/IS2/3279

[1]	LUHMANN A J，KONG X Z，TUTOLO B M，et al. Experimental dissolution of dolomite by CO2-charged brine at 100 ℃ and 150 bar： evolution of porosity，permeability，and reactive surface area[J]. Chemical Geology，2014，380：145–160.
[2]	LAND C V D，WOOD R，WU K，et al. Modelling the permeability evolution of carbonate rocks[J]. Marine and Petroleum Geology，2013，48：1–7.
[3]	LUQUOT L，GOUZE P. Experimental determination of porosity and permeability changes induced by injection of CO2，into carbonate rocks[J]. Chemical Geology，2009，265(1)：148–159.
[4]	OKAZAKI K，NODA H，UEHARA S，et al. Permeability，porosity and pore geometry evolution during compaction of Neogene sedimentary rocks[J]. Journal of Structural Geology，2014，62：1–12.
[5]	赵仁保，孙海涛，吴亚生，等. 二氧化碳埋存对地层岩石影响的室内研究[J].中国科学：技术科学，2010，40(4)：378–384.(ZHAO Renbao，SUN Haitao，WU Yasheng，et al. Influence of CO2 corrosion on rock structure and its mechanical characteristics[J]. Science in China：Technology，2010，40(4)：378–384.(in Chinese))
[6]	乔丽苹. 砂岩弹塑性及蠕变特性的水物理化学作用效应试验与本构研究[博士学位论文][D]. 武汉：中国科学院武汉岩土力学研究所，2008.(QIAO Liping. Experimental theoretical numerical studies of elasto-plastic and creep property of sandstone with hydro-physico- chemical influencing effects[Ph. D. Thesis][D]. Wuhan：Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，2008.(in Chinese))
[7]	盛金昌，张肖肖，贾春兰，等. 温变条件下石灰岩裂隙渗透特性实验研究[J]. 岩石力学与工程学报，2017，36(8)：1 832–1 840. (SHENG Jinchang，ZHANG Xiaoxiao，JIA Chunlan，et al. Experiment study on permeability of limestone fracture under temperature variation[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(8)：1 832–1 840.(in Chinese))
[8]	陈卫昌，李黎，邵明申，等. 酸雨作用下碳酸盐岩类文物的溶蚀过程与机理[J]. 岩土工程学报，2017，39(11)：2 058–2 067.(CHEN Weichang，LI Li，SHAO Mingshen，et al. Experimental study on carbonate dissolution and erosion effect under attack of simulated sulphuric acid rain[J]. Chinese Journal of Geotechnical Engineering，2017，39(11)：2 058–2 067.(in Chinese))
[9]	SADHUKHAN S，GOUZE P，DUTTA T. Porosity and permeability changes in sedimentary rocks induced by injection of reactive fluid：a simulation model[J]. Journal of Hydrology，2012，450–451：134–139.
[10]	BIRD M B，BUTLER S L，HAWKES C D，et al. Numerical modeling of fluid and electrical currents through geometries based on synchrotron X-ray tomographic images of reservoir rocks using Avizo and COMSOL[J]. Computers and Geosciences，2014，73：6–16.
[11]	LITEANU E，SPIERS C J，DE BRESSER J H P. The influence of water and supercritical CO2 on the failure behavior of chalk[J]. Tectonophysics，2013，599：157–169.
[12]	张帆，周辉，吕涛，等. CO2注入下岩层变形和流体运移分析(I)：两相流–岩层耦合模型[J]. 岩土力学，2014，35(9)：2 549– 2 554.(ZHANG Fan，ZHOU Hui，LV Tao，et al. Analysis of reservoir deformation and fluid transportation induced by injection of CO2 into saline aquifer(I)： Two-phase flow-reservoir coupling model[J]. Rock and Soil Mechanics，2014，35(9)：2 549–2 554.(in Chinese))
[13]	姚华彦. 化学溶液及其水压下灰岩破裂过程宏细观力学试验与理论分析[博士学位论文][D]. 武汉：中国科学院武汉岩土力学研究所，2008.(YAO Huayan．Macro-mesomechanical experiment and theoretical analysis on limestone under coupled chemical corrosion and water pressure[Ph. D. Thesis][D]. Wuhan：Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，2008.(in Chinese))
[14]	LI N，ZHU Y，SU B，et al. A chemical damage model of sandstone in acid solution[J]. International Journal of Rock Mechanics and Mining Sciences，2003，40(2)：243–249.
[15]	李宁，朱运明，张平，等. 酸性环境中钙质胶结砂岩的化学损伤模型[J]. 岩土工程学报，2003，25(4)：395–399.(LI Ning，ZHU Yunming，ZHANG Ping，et al. A chemical damage model of sandstone in acid environment[J]. Chinese Journal of Geotechnical Engineering，2003，25(4)：395–399.(in Chinese))
[16]	闫志为. 硫酸根离子对方解石和白云石溶解度的影响[J]. 中国岩溶，2008，27(1)：24–31.(YAN Zhiwei. Influences of on the solubility of calcite and dolomite[J]. Carsologica Sinica，2008，27(1)：24–31.(in Chinese))
[17]	盛金昌，杜昀宸，周庆，等. 岩石THMC多因素耦合实验系统研制与应用[J/OL]. 长江科学院院报，2017，http://kns.cnki.net/kcms/ detail/42.1171.TV.20171201.1632.008.html.2017–12–14/2018–07–13.(SHENG Jinchang，DU Yunchen，ZHOU Qing，et al. Development and application of permeability experimental system for rock in coupled THMC process[J/OL]. Journal of Yangtze River Scientific Research Institute，2017. http://kns.cnki.net/kcms/detail/ 42.1171.TV.20171201.1632.008.html. 2017–12–14/2018–07–13.(in Chinese))
[18]	聂向荣，王成龙，刘姣. 基于时间尺度的致密储层应力敏感实验研究[J]. 非常规油气，2016，3(4)：21–24.(NIE Xiangrong，WANG Chenglong，LIU Jiao. Experimental study on stress sensitivity for tight reservoirs based on time scale[J]. Unconventional Oil and Gas，2016，3(4)：21–24.(in Chinese))
[19]	杨胜来，刘伟，冯积累，等. 加压时间对储层岩心渗透率的影响[J]. 中国石油大学学报：自然科学版，2008，32(1)：64–67.(YANG Shenglai，LIU Wei，FENG Jilei，et al. Effect of pressure time on reservoirs core permeability[J]. Journal of China University of Petroleum：Natural Science，2008，32(1)：64–67.(in Chinese))
[20]	翁金桃. 方解石和白云石的差异溶蚀作用[J]. 中国岩溶，1984，(1)：29–40.(WENG Jintao. The differential corrosion of calcites and dolomites[J]. Carsologica Sinica，1984，(1)：29–40.(in Chinese))
[21]	张婷，施保昌，柴振华. 多孔介质内溶解与沉淀过程的格子Boltzmann方法模拟[J]. 物理学报，2015，64(15)：354–367. (ZHANG Ting，SHI Baochang，CHAI Zhenhua. Lattice Boltzmann simulation of dissolution and precipitation in porous media[J]. Acta Physica Sinica，2015，64(15)：354–367.(in Chinese))
[22]	杜昀宸. 渗流–应力–化学耦合作用下碳酸盐岩渗透特性演化规律研究[硕士学位论文][D]. 南京：河海大学，2018.(DU Yunchen. Research on the permeability evolution of carbonate rocks under hydro- mechano-chemical coupling[M. S. Thesis][D]. Nanjing：Hohai University，2018.(in Chinese))