陆相与过渡相煤系页岩孔隙结构及分形特征对比——以鄂尔多斯盆地东北缘延安组与太原组为例

doi:10.7623/syxb201709005

石油学报 ›› 2017, Vol. 38 ›› Issue (9): 1036-1046.DOI: 10.7623/syxb201709005

陆相与过渡相煤系页岩孔隙结构及分形特征对比——以鄂尔多斯盆地东北缘延安组与太原组为例

张岩, 刘金城, 徐浩, 牛鑫磊, 秦国红, 曹代勇

中国矿业大学地球科学与测绘工程学院北京 100083

收稿日期:2017-01-16 修回日期:2017-06-06 出版日期:2017-09-25 发布日期:2017-10-09
通讯作者: 曹代勇,男,1955年8月生,1982年获中国矿业学院学士学位,1991年获中国矿业大学(北京)研究生部博士学位,现为中国矿业大学(北京)教授、博士生导师,主要从事煤田构造与构造控煤、盆地构造分析、煤与非常规气地质、矿产资源评价与勘查等研究工作。Email:cdy@cumtb.edu.cn
作者简介:张岩,女,1992年5月生,2015年获太原理工大学学士学位,现为中国矿业大学(北京)硕士研究生,主要从事煤系矿产资源与非常规油气地质研究。Email:zhangyan@student.cumtb.edu.cn
基金资助:
国家自然科学基金项目（No.41572141）和中国地质调查局地质调查项目（DD20160187）资助。

Comparison between pore structure and fractal characteristics of continental and transitional coal measures shale:a case study of Yan'an and Taiyuan formations at the northeastern margin of Ordos Basin

Zhang Yan, Liu Jincheng, Xu Hao, Niu Xinlei, Qin Guohong, Cao Daiyong

College of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing 100083, China

Received:2017-01-16 Revised:2017-06-06 Online:2017-09-25 Published:2017-10-09

摘要/Abstract

摘要：

基于低温氮气吸附分形几何学研究方法，对鄂尔多斯盆地东北缘陆相延安组及海陆过渡相太原组富有机质煤系页岩进行孔隙结构和分形特征研究，运用分形FHH模型计算了大孔隙（4.34~100 nm）和小孔隙（<4.34 nm）对应的分形维数D₁与D₂，对比讨论了孔隙结构参数与分形维数的关系，以及TOC、矿物含量对两者的影响。研究结果表明：1延安组孔径分布在1.8~59 nm，呈"双峰型"，以墨水瓶状、狭缝状和平行板状孔为主；太原组孔径主要分布在3~4.5 nm，呈"单峰型"，以墨水瓶状孔为主。2煤系页岩具有双重分形特征，D₁与D₂正相关，且D₁>D₂，表明大孔隙空间结构更加复杂。延安组两类孔隙空间结构均比较复杂，太原组大孔隙空间结构非常复杂，而小孔隙均质性强。3煤系页岩平均孔径越小，微小孔隙越多，比表面积越大，总孔体积越大，分形维数越大，即孔隙结构越复杂，孔表面越不规则；延安组D₁、D₂和太原组D₁均可反映各自孔隙结构特征。4太原组孔隙结构参数和分形维数受TOC及矿物成分含量影响较延安组明显。5延安组页岩储层优于太原组，更利于煤系页岩气的吸附、赋存、扩散和渗流。

关键词: 煤系页岩, 低温氮气吸附, FHH模型, 孔隙结构, 分形维数

Abstract:

Based on the fractal geometry method for studying low-temperature nitrogen adsorption, the pore structures and fractal characteristics of organic-rich coal measures shale in continental Yan'an Formation and sea-land transitional Taiyuan Formation at the northeastern margin of Ordos Basin are studied in this study. The fractal FHH model is used to calculate the fractal dimensions D₁ and D₂ of the large pores (4.34-100 nm) and small pores (less than 4.34 nm), so as to comparatively analyze the relationship between pore structure parameters and fractal dimensions as well as the influences of TOC and mineral compositions on the both. The results are as below:(1) In Yan'an Formation, pore sizes are distributed in the range of 1.8-59 nm, showing a "bimodal" pattern; ink-bottle, slit and plate-like pores are dominantly developed. In Taiyuan Formation, pore sizes are ranged in 3-4.5 nm, showing a "unimodal" pattern; ink-bottle pores are mainly developed. (2) Coal measures shale has double fractal characteristics. D₁ and D₂ are positively correlated, and D₁ is larger than D₂, indicating the more complex structures of large pores. Besides, the spatial structures of two types of pores in Yan'an Formation are all complex, while those of large pores in Taiyuan Formation are very complex, but small pores have strong heterogeneity. (3) The smaller the average pore size of coal measures shale is, the more the small pores will be, the larger the specific surface area will be, the bigger the total pore volume will be, and the higher the fractal dimension will be, i.e., the more complex the pore structure is, the more irregular the pore surface will be. The D₁ and D₂ of Yan'an Formation and D₂ of Taiyuan Formation can reflect the corresponding pore structure characteristics, respectively. (4) The pore structure parameters and fractal dimensions of Taiyuan Formation are more significantly affected by TOC and mineral compositions than those of Yan'an Formation. (5) As compared with Taiyuan Formation, Yan'an Formation has better shale reservoir, and is more favorable for the adsorption, occurrence, diffusion and flow of coal measures shale gas.

Key words: coal measures shale, low-temperature nitrogen adsorption, FHH model, pore structure, fractal dimension

中图分类号:

TE135

张岩, 刘金城, 徐浩, 牛鑫磊, 秦国红, 曹代勇. 陆相与过渡相煤系页岩孔隙结构及分形特征对比——以鄂尔多斯盆地东北缘延安组与太原组为例[J]. 石油学报, 2017, 38(9): 1036-1046.

Zhang Yan, Liu Jincheng, Xu Hao, Niu Xinlei, Qin Guohong, Cao Daiyong. Comparison between pore structure and fractal characteristics of continental and transitional coal measures shale:a case study of Yan'an and Taiyuan formations at the northeastern margin of Ordos Basin[J]. Acta Petrolei Sinica, 2017, 38(9): 1036-1046.

参考文献

[1] MAVOR M.Barnett shale gas-in-place volume including sorbed and free gas volume[C].Fort Wortg,Texas:AAPG,2003.
[2] MA Jian,QI Hao,WONG P.Experimental study of multilayer adsorption on fractal surfaces in porous media[J].Physical Review E,1999,59(2):2049-2059.
[3] 何建华,丁文龙,付景龙,等.页岩微观孔隙成因类型研究[J].岩性油气藏,2014,26(5):30-35.
HE Jianhua,DING Wenlong,FU Jinglong,et al.Study on genetic type of micropore in shale reservoir[J].Lithologic Reservoirs,2014,26(5):30-35.
[4] 邹才能,杨智,崔景伟,等.页岩油形成机制、地质特征及发展对策[J].石油勘探与开发,2013,40(1):14-26.
ZOU Caineng,YANG Zhi,CUI Jingwei,et al.Formation mechanism,geological characteristics and development strategy of nonmarine shale oil in China[J].Petroleum Exploration and Development,2013,40(1):14-26.
[5] 于炳松.页岩气储层孔隙分类与表征[J].地学前缘, 2013,20(4):211-220.
YU Bingsong.Classification and characterization of gas shale pore system[J].Earth Science Frontiers,2013,20(4):211-220.
[6] 代全齐,罗群,张晨,等.基于核磁共振新参数的致密油砂岩储层孔隙结构特征——以鄂尔多斯盆地延长组7段为例[J].石油学报,2016,37(7):887-897.
DAI Quanqi,LUO Qun,ZHANG Chen,et al.Pore structure characteristics of tight-oil sandstone reservoir based on a new parameter measured by NMR experiment:a case study of seventh Member in Yanchang Formation,Ordos Basin[J].Acta Petrolei Sinica,2016,37(7):887-897.
[7] PFEIFERPER P,AVNIR D.Chemistry in nonintegral dimensions between two and three[J].The Journal of Chemical Physics,1983,79(7):3369-3558.
[8] 徐勇,吕成福,陈国俊,等.川东南龙马溪组页岩孔隙分形特征[J].岩性油气藏,2015,27(4):32-39.
XU Yong,LV Chengfu,CHEN Guojun,et al.Fractal characteristics of shale pores of Longmaxi Formation in southeast Sichuan Basin[J].Lithologic Reservoirs,2015,27(4):32-39.
[9] TIAN Hui,PAN Lei,XIAO Xianming,et al.A preliminary study on the pore characterization of Lower Silurian black shales in the Chuandong thrust fold belt,southwestern China using low pressure N₂ adsorption and FE-SEM methods[J].Marine and Petroleum Geology,2013,48:8-19.
[10] 赵迪斐,郭英海,解德录,等.基于低温氮吸附实验的页岩储层孔隙分形特征[J].东北石油大学学报,2014,38(6):100-108.
ZHAO Difei,GUO Yinghai,XIE Delu,et al.Fractal characteristics of shale reservoir pores based on nitrogen adsorption[J].Journal of Northeast Petroleum University,2014,38(6):100-108.
[11] WANG Min,XUE Haitao,TIAN Shansi,et al.Fractal characteristics of Upper Cretaceous lacustrine shale from the Songliao Basin,NE China[J].Marine and Petroleum Geology,2015,67:144-153.
[12] 杨峰,宁正福,王庆,等.页岩纳米孔隙分形特征[J].天然气地球科学,2014,25(4):618-623.
YANG Feng,NING Zhengfu,WANG Qing,et al.Fractal characteristics of nanopore in shales[J].Natural Gas Geoscience,2014,25(4):618-623.
[13] CAO Taotao,SONG Zhiguang,WANG Sibo,et al.Characterization of pore structure and fractal dimension of Paleozoic shales from the northeastern Sichuan Basin,China[J].Journal of Natural Gas Science and Engineering,2016,35:882-895.
[14] YAO Yanbin,LIU Dameng,TANG Dazhen,et al.Fractal characterization of adsorption-pores of coals from North China:an investigation on CH₄ adsorption capacity of coals[J].International Journal of Coal Geology,2008,73(1):27-42.
[15] 牛露,朱如凯,王莉森,等.华北地区北部中-上元古界泥页岩储层特征及页岩气资源潜力[J].石油学报,2015,36(6):664-672.
NIU Lu,ZHU Rukai,WANG Lisen,et al.Characteristics and evaluation of the Meso-Neoproterozoic shale gas reservoir in the northern North China[J].Acta Petrolei Sinica,2015,36(6):664-672.
[16] 郭彦如,赵振宇,张月巧,等.鄂尔多斯盆地海相烃源岩系发育特征与勘探新领域[J].石油学报,2016,37(8):939-951.
GUO Yanru,ZHAO Zhenyu,ZHANG Yueqiao,et al.Development characteristics and new exploration areas of marine source rocks in Ordos Basin[J].Acta Petrolei Sinica,2016,37(8):939-951.
[17] 曹代勇,王崇敬,李靖,等.煤系页岩气的基本特点与聚集规律[J].煤田地质与勘探,2014,42(4):25-30.
CAO Daiyong,WANG Chongjing,LI Jing,et al.Basic characteristics and accumulation rules of shale gas in coal measures[J].Coal Geology & Exploration,2014,42(4):25-30.
[18] 王双明,张玉平.鄂尔多斯侏罗纪盆地形成演化和聚煤规律[J].地学前缘,1999,6(增刊1):147-155.
WANG Shuangming,ZHANG Yuping.Study on the formation,evolution and coal-accumulating regularity of the Jurassic Ordos Basin[J].Earth Science Frontiers,1999,6(S1):147-155.
[19] 王涛,侯明才,陈洪德,等.海西构造旋回阴山幕式造山与鄂尔多斯盆地北部旋回充填的耦合关系[J].成都理工大学学报:自然科学版,2014,41(3):310-317.
WANG Tao,HOU Mingcai,CHEN Hongde,et al.Coupling relationship between Yinshan episodic orogenic movement of Hercynian tectonic cycle and filling cycle of the North Ordos Basin in China[J].Journal of Chengdu University of Technology:Science & Technology Edition,2014,41(3):310-317.
[20] Rezaee R.Fundamentals of gas shale reservoirs[M].Hoboken:John Wiley & Sons,Inc.,2015.
[21] 中华人民共和国国家质量监督检验检疫总局.沉积岩中总有机碳的测定:GB/T 19145-2003[S].北京:中国标准出版社,2003.
General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China.Determination of total organic carbon in sedimentary rock:GB/T 19145-2003[S].Beijing:China Standard Press,2003.
[22] 国家能源局.沉积岩中黏土矿物和常见非黏土矿物X衍射分析方法:SY/T 5163-2010[S].北京:石油工业出版社,2010.
National Energy Board.Analysis method for clay minerals and ordinary non-clay minerals in sedimentary rocks by the X-ray diffraction:SY/T 5163-2010[S].Beijing:Petroleum Industry Press,2010.
[23] 国家标准化管理委员会.气体吸附BET法测定固态物质比表面积:GB/T 19587-2004[S].北京:中国标准出版社,2005.
China National Standardization Administration Committee.Determination of the specific surface area of solids by gas adsorption using the BET method:GB/T 19587-2004[S].Beijing:China Standard Press,2005.
[24] 卢龙飞,蔡进功,刘文汇,等.泥质烃源岩中黏土矿物结合有机质的不同赋存状态[C]//中国石化石油勘探开发研究院2010年博士后学术论坛论文集.北京:中国石化石油勘探开发研究院,2010.
LU Longfei,CAI Jingong,LIU Wenhui,et al.Occurrence of organic matter bound by clay minerals in hydrocarbon source rocks[C]//2010 Postdoctoral Acadamic Forum of Research Institute of Petroleun Exploration and Development,BCNPC.Beijing:Sinopec Petroleum Exploration and Production Research Institute,2010.
[25] ZHANG Qin,LIU Renhe,PANG Zhenglian,et al.Characterization of microscopic pore structures in Lower Silurian black shale(S₁l),southeastern Chongqing,China[J].Marine and Petroleum Geology,2016,71:250-259.
[26] SING K S W.Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984)[J].Pure and Applied Chemistry,1985,57(4):603-619.
[27] 徐如人,庞文琴,于吉红,等.分子筛与多孔材料化学[M].北京:科学出版社,2004.
XU Ruren,PANG Wenqin,YU Jihong,et al.Chemistry-zeolites and porous materials[M].Beijing:Science Press,2004.
[28] CLARKSON C R,JENSEN J L,PEDERSEN P K,et al.Innovative methods for flow-unit and pore-structure analyses in a tight siltstone and shale gas reservoir[J].AAPG Bulletin,2012,96(2):355-374.
[29] SAIDIAN M,KUILA U,PRASAD M,et al.A comparison of measurement techniques for porosity and pore size distribution in mudrocks:a case study of Haynesville, Niobrara,Monterey and eastern European silurian formations:AAPG Memoir 110[M].Tulsa:AAPG,2015.
[30] AVNIR D,JARONIEC M.An isotherm equation for adsorption on fractal surfaces of heterogeneous porous materials[J].Langmuir,1989,5(6):1431-1433.
[31] 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.
[32] 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 reservoir[J].Journal of Daqing Petroleum Institute,2007,31(1):15-18.
[33] WANG Min,WILKINS R W T,SONG Guoqi,et al.Geochemical and geological characteristics of the Es₃L lacustrine shale in the Bonan sag,Bohai Bay Basin,China[J].International Journal of Coal Geology,2015,138:16-29.
[34] 纪文明,宋岩,姜振学,等.四川盆地东南部龙马溪组页岩微-纳米孔隙结构特征及控制因素[J].石油学报,2016,37(2):182-195.
JI Wenming,SONG Yan,JIANG Zhenxue,et al.Micro-nano pore structure characteristics and its control factors of shale in Longmaxi Formation,southeastern Sichuan Basin[J].Acta Petrolei Sinica,2016,37(2):182-195.
[35] 徐宏杰,胡宝林,刘会虎,等.淮南煤田下二叠统山西组煤系页岩气储层特征及物性成因[J].天然气地球科学,2015,26(6):1200-1210.
XU Hongjie,HU Baolin,LIU Huihu,et al.Reservoir characteristics and its physical origin of shale gas in coal measure in the Lower Permian Shanxi Formation in Huainan coal field[J].Natural Gas Geoscience,2015,26(6):1200-1210.

陆相与过渡相煤系页岩孔隙结构及分形特征对比——以鄂尔多斯盆地东北缘延安组与太原组为例

Comparison between pore structure and fractal characteristics of continental and transitional coal measures shale:a case study of Yan'an and Taiyuan formations at the northeastern margin of Ordos Basin

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	黄兴, 倪军, 李响, 薛俊杰, 柏明星, 周彤. 致密油藏不同微观孔隙结构储层CO₂驱动用特征及影响因素[J]. 石油学报, 2020, 41(7): 853-864.
[2]	王安民, 曹代勇, 聂敬, 秦荣芳. 巨厚煤储层孔隙结构的垂向非均质性特征——以青海聚乎更矿区为例[J]. 石油学报, 2020, 41(6): 691-701.
[3]	单长安, 张廷山, 梁兴, 胡冉冉, 赵卫卫. 富镜质组和富惰质组高阶煤纳米孔隙结构特征[J]. 石油学报, 2020, 41(6): 723-736.
[4]	罗文彬, 马中良, 郑伦举, 谭静强, 王张虎, 宁传祥. 海相页岩成岩-成烃过程中孔隙结构的演变——来自热模拟实验的启示[J]. 石油学报, 2020, 41(5): 540-552.
[5]	宋岩, 高凤琳, 唐相路, 陈磊, 王幸蒙. 海相与陆相页岩储层孔隙结构差异的影响因素[J]. 石油学报, 2020, 41(12): 1501-1512.
[6]	姜振学, 李廷微, 宫厚健, 姜涛, 常佳琦, 宁传祥, 苏思远, 陈委涛. 沾化凹陷低熟页岩储层特征及其对页岩油可动性的影响[J]. 石油学报, 2020, 41(12): 1587-1600.
[7]	何晶, 何生, 刘早学, 翟刚毅, 王亿, 韩元佳, 万阔, 魏思乐. 鄂西黄陵背斜南翼下寒武统水井沱组页岩孔隙结构与吸附能力[J]. 石油学报, 2020, 41(1): 27-42.
[8]	林晓英, 黄美鑫, 陈浩, 王健, 王瑞杰. 不同极性溶剂萃取对泥页岩孔隙结构的影响[J]. 石油学报, 2019, 40(12): 1485-1494.
[9]	王曦蒙, 刘洛夫, 汪洋, 盛悦, 郑珊珊, 罗泽华. 川南地区龙马溪组页岩岩相对页岩孔隙空间的控制[J]. 石油学报, 2019, 40(10): 1192-1201.
[10]	彭军, 韩浩东, 夏青松, 李斌. 深埋藏致密砂岩储层微观孔隙结构的分形表征及成因机理——以塔里木盆地顺托果勒地区柯坪塔格组为例[J]. 石油学报, 2018, 39(7): 775-791.
[11]	朱汉卿, 贾爱林, 位云生, 贾成业, 袁贺, 刘畅. 蜀南地区富有机质页岩孔隙结构及超临界甲烷吸附能力[J]. 石油学报, 2018, 39(4): 391-401.
[12]	苟启洋, 徐尚, 郝芳, 陆扬博, 张爱华, 王雨轩, 程璇, 青加伟. 纳米CT页岩孔隙结构表征方法——以JY-1井为例[J]. 石油学报, 2018, 39(11): 1253-1261.
[13]	房涛, 张立宽, 刘乃贵, 张立强, 王为民, 于岚, 李超, 雷裕红. 核磁共振技术定量表征致密砂岩气储层孔隙结构——以临清坳陷东部石炭系—二叠系致密砂岩储层为例[J]. 石油学报, 2017, 38(8): 902-915.
[14]	武瑾, 梁峰, 吝文, 王红岩, 拜文华, 马超, 孙莎莎, 赵群, 宋晓江, 于荣泽. 渝东北地区巫溪2井五峰组-龙马溪组页岩气储层及含气性特征[J]. 石油学报, 2017, 38(5): 512-524.
[15]	黄志龙, 马剑, 梁世君, 梁浩, 陈旋, 康积伦. 源-储分离型凝灰岩致密油藏形成机理与成藏模式[J]. 石油学报, 2016, 37(8): 975-985.