王有智;王世辉;

• 1:大庆油田有限责任公司勘探开发研究院

摘要(Abstract)：

基于鹤岗煤田北部区块典型构造煤样的低温氮吸附实验数据,分析不同变形程度下构造煤的分形维数与孔隙系统结构和气体吸附能力的关系.结果表明,受变形程度影响,碎裂煤和碎粒煤的孔隙系统发生变化,导致低温氮吸附、解吸曲线表现出不同形态.在相对压力为0.5~1.0时,分形维数可以有效表征碎裂煤与碎粒煤的孔隙结构和吸附能力.随着分形维数变大,煤岩变形程度增加,微孔含量增加,孔径变小,比表面积增大,孔表面粗糙度增加,使得煤岩孔隙系统复杂化,最终煤岩吸附能力增强.因此,煤岩孔隙分形维数可以表征煤岩孔隙结构和吸附能力.

关键词(KeyWords)：分形维数;孔隙结构;吸附能力;构造煤;鹤岗煤田;低温氮吸附实验

Abstract:

Keywords:

基金项目(Foundation):国家重大科技专项(2010E-2201)

作者(Author):王有智;王世辉;

Email:

参考文献(References)：

• [1]陈萍,唐修义.低温氮吸附法与煤中微孔隙特征的研究[J].煤炭学报,2001,26(5):552-556.Chen Ping,Tang Xiuyi.The research on adsorption of nitrogen in low temperature and micro-pore properties in coal[J].Journal of China Coal Society,2001,26(5):552-556.

• [2]陈富勇,琚宜文,李小诗,等.构造煤中煤层气扩散—渗流特征及其机理[J].地学前缘,2010,17(1):195-201.Chen Fuyong,Ju Yiwen,Li Xiaoshi,et al.Diffusion-osmosis characteristics of coalbed methane in tectonically deformed coals and theirmechanism[J].Earth Science Frontiers,2010,17(1):195-201.

• [3]段东,高坤,唐春安,等.孔隙压力在瓦斯突出过程中的作用机理研究[J].煤矿安全,2009,40(1):3-6.Duan Dong,Gao Kun,Tang Chun'an,et al.Study on mechanism of pore pressure in coal and gas outburst process[J].Safety in Coal Mines,2009,40(1):3-6.

• [4]孟宪明.煤孔隙结构和煤对气体吸附特性研究[D].青岛:山东科技大学,2007.Meng Xianming.Study on the pore structure of coals and characteris-tics of gases adsorption on coals[D].Qingdao:Shandong University of Science and Technology,2007.

• [5]陶云奇.含瓦斯煤THM耦合模型及煤与瓦斯突出模拟研究[D].重庆:重庆大学,2009.Tao Yunqi.Study on the gassy coal THM coupling model and coal and gas outburst simulation[D].Chongqing:Chongqing University,2009.

• [6]张松航.鄂尔多斯盆地东缘煤层气储层物性研究[D].北京:中国地质大学,2008.Zhang Songhang.Study on coal reservoir physical properties in eastern margin of ordos basin[D].Beijing:China University of Geosciences,2008.

• [7]张瑜.沁水盆地南部高阶煤产气机理与产气规律研究[D].重庆:重庆大学,2009.Zhang Yu.Study on gas production mechanism and discipline of highrank coalbed methane in southern of Qinshui basin[D].Chongqing:Chongqing University,2009.

• [8]Gülbin Gürdal,M Namk Yaln.Pore volume and surface area of the carboniferous coals from the Zonguldak basin(NW Turkey)and their variations with rank and maceral composition[J].International Journal of Coal Geology,2001,48(1/2):133-144.

• [9]李大勇,臧士宾,任晓娟,等.用分形理论研究低渗透储层孔隙结构[J].辽宁化工,2010,39(7):723-726.Li Dayong,Zang Shibin,Ren Xiaojuan,et al.Study on pore structure of low permeability reservoirs with fractal theory[J].Liaoning Chemical Industry,2010,39(7):723-726.

• [10]李留仁,赵艳艳,李忠兴,等.多孔介质微观孔隙结构分形特征及分形系数的意义[J].石油大学学报:自然科学版,2004,8(3):105-108.Li liuren,Zhao Yanyan,Li Zhongxing,et al.Fractal characteristics of micropore structure of porous media and the meaning of fractal coefficient[J].Journal of the University of Petroleum:Edition of Natural Science,2004,8(3):105-108.

• [11]Pfeifer P,Colem W.Fractals in surface science:Scattering and thermo-dynamics of adsorbed films(Ⅱ)[J].New J.Chem.,1990,14:221-232.

• [12]Katz A J,Thompson A H.Fractal stone poresimplications for conductivity and formation[J].Phys.Rev.Lett.,1985,54(3):1325-1328.

• [13]Kroch C E.Sandstone fractal and Euclidean pore volume distributions[J].Geo.Phys.Res.,1988,93(B4):3286-3296.

• [14]刘方.廊东油田低渗透油藏损害机理研究[D].西安:西安石油大学,2010.Liu Fang.Researches on the damage mechanism of low permeability reservoir in Langdong oilfield[D].Xi'an:Xi'an Shiyou University,2010.

• [15]Shen P,Li K.Quantitative desciption for heterogeneity of pore structure by using mercury capillary pressu curves[C]∥Proceedings of the SPE Internation Meeting Held in Beiing.SPE 29996,1995:14-17.

• [16]文慧俭,闫林,姜福聪,等.低孔低渗储层孔隙结构分形特征[J].大庆石油学院学报,2007,31(1):15-18.Wen Huijian,Yan Lin,Jiang Fucong,et al.The fractal characteristics of the pore texture in low porosity and low permeability reservoirs[J].Journal of Daqing Petroleum Institute,2007,31(1):15-18.

• [17]贺伟,钟孚勋,贺承祖,等.储层岩石孔隙的分形结构研究和应用[J].天然气工业,2000,20(2):67-70.He Wei,Zhong Fuxun,He Chengzu,et al.Fractal texture research on the poresin reservoir rocks and its application[J].Natural Gas Industry,2000,20(2):67-70.

• [18]张婷,徐守余,杨珂.储层微观孔隙结构分形维数应用[J].大庆石油学院学报,2010,34(3):43-48.Zhang Ting,Xu Shouyu,Yang Ke.Application of fractal dimension of micro-pore structure[J].Journal of Daqing Petroleum Institute,2010,34(3):43-48.

• [19]刘靖阳.鹤岗矿区煤层气利用与展望[J].煤炭技术,2002,21(11):3-4.Liu Jingyang.Application and forecast of coal seam gas in Hegang mine field[J].Coal Technology,2002,21(11):3-4.

• [20]赵淑荣.鹤岗煤田煤层气利用初步评价[J].煤炭技术,2009,28(3):144-145.Zhao Shurong.Preliminary valuation on use of Hegang coal seam gas[J].Coal Technology,2009,28(3):144-145.

• [21]王世辉,王有智,许承武,等.鹤岗盆地煤层气资源潜力分析[J].中国煤层气,2012,9(1):18-22.Wang Shihui,Wang Youzhi,Xu Chengwu,et al.Study of potentials of CBM resources in Hegang basin[J].China Coalbed Methane,2012,9(1):18-22.

• [22]琚宜文,姜波,侯泉林,等.构造煤结构—成因新分类及其地质意义[J].煤炭学报,2004,29(5):513-517.Ju Yiwen,Jiang Bo,Hou Quanlin,et al.The new structure-genetic classification system in tectonically deformed coals and its geological significance[J].Journal of China Coal Society,2004,29(5):513-517.

• [23]宋晓夏,唐跃刚,李伟,等.中梁山南矿构造煤吸附孔分形特征[J].煤炭学报,2013,38(1):134-139.Song Xiaoxia,Tang Yuegang,Li Wei,et al.Fractal characteristics of adsorption pores of tectonic coal from Zhongliangshan southern coalmine[J].Journal of China Coal Society,2013,38(1):134-139.

• [24]Rigby S P.Predicting surface diffusivities of molecules from equilibrium adsorption isotherms[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2005,262:139-149.

• [25]Xu L,Zhang D,Xian X.Fractal dimensions of coals and cokes[J].Journal of Colloid and Interface Science,1997,190(1):357-359.

• [26]Pfeifer P,Avnir D.Chemistry in noninteger dimensions between two and three.I.Fractal theory of heterogeneous surfaces[J].The Journal of Chemical Physics,1983,79:3369-3558.

• [27]降文萍,宋孝忠,钟玲文.基于低温液氮实验的不同煤体结构煤的孔隙特征及其对瓦斯突出影响[J].煤炭学报,2011,36(4):609-614.Jiang Wenping,Song Xiaozhong,Zhong Lingwen.Research on the pore properties of different coal body structure coals and the effects on gas outburst based on the low-temperature nitrogen adsorption method[J].Journal of China Coal Society,2011,36(4):609-614.

• [28]秦跃平,傅贵.煤孔隙分形特性及其吸水性能的研究[J].煤炭学报,2000,25(1):55-59.Qin Yueping,Fu Gui.Study on fractal characteristic of pore in coal and moisture-absorbing property of coal[J].Journal of China Coal Society,2000,25(1):55-59.